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cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Aspetto</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=it.wikipedia.org&uselang=it" class=""><span>Fai una donazione</span></a> </li> <li 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<nav id="mw-panel-toc" aria-label="Indice" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Indice</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">nascondi</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inizio</div> </a> </li> <li id="toc-Confrontare_e_rapportare" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Confrontare_e_rapportare"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Confrontare e rapportare</span> </div> </a> <ul id="toc-Confrontare_e_rapportare-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Classificazione" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Classificazione"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Classificazione</span> </div> </a> <button aria-controls="toc-Classificazione-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Attiva/disattiva la sottosezione Classificazione</span> </button> <ul id="toc-Classificazione-sublist" class="vector-toc-list"> <li id="toc-Grandezze_fondamentali" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Grandezze_fondamentali"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Grandezze fondamentali</span> </div> </a> <ul id="toc-Grandezze_fondamentali-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Grandezze_derivate" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Grandezze_derivate"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Grandezze derivate</span> </div> </a> <ul id="toc-Grandezze_derivate-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Note" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Note"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voci_correlate" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voci_correlate"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Voci correlate</span> </div> </a> <ul id="toc-Voci_correlate-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Altri_progetti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Altri_progetti"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Altri progetti</span> </div> </a> <ul id="toc-Altri_progetti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collegamenti_esterni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Collegamenti_esterni"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Collegamenti esterni</span> </div> </a> <ul id="toc-Collegamenti_esterni-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Indice" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Mostra/Nascondi l'indice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Mostra/Nascondi l'indice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Grandezza fisica</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Vai a una voce in un'altra lingua. Disponibile in 71 lingue" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-71" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">71 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%83%D9%85%D9%8A%D8%A9_%D9%81%D9%8A%D8%B2%D9%8A%D8%A7%D8%A6%D9%8A%D8%A9" title="كمية فيزيائية - arabo" lang="ar" hreflang="ar" data-title="كمية فيزيائية" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Magnit%C3%BA_f%C3%ADsica" title="Magnitú física - asturiano" lang="ast" hreflang="ast" data-title="Magnitú física" data-language-autonym="Asturianu" data-language-local-name="asturiano" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Fiziki_k%C9%99miyy%C9%99t" title="Fiziki kəmiyyət - azerbaigiano" lang="az" hreflang="az" data-title="Fiziki kəmiyyət" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaigiano" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A4%D1%96%D0%B7%D1%96%D1%87%D0%BD%D1%8B%D1%8F_%D0%B2%D0%B5%D0%BB%D1%96%D1%87%D1%8B%D0%BD%D1%96" title="Фізічныя велічыні - bielorusso" lang="be" hreflang="be" data-title="Фізічныя велічыні" data-language-autonym="Беларуская" data-language-local-name="bielorusso" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A4%D1%96%D0%B7%D1%8B%D1%87%D0%BD%D0%B0%D1%8F_%D0%B2%D0%B5%D0%BB%D1%96%D1%87%D1%8B%D0%BD%D1%8F" title="Фізычная велічыня - Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Фізычная велічыня" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A4%D0%B8%D0%B7%D0%B8%D1%87%D0%BD%D0%B0_%D0%B2%D0%B5%D0%BB%D0%B8%D1%87%D0%B8%D0%BD%D0%B0" title="Физична величина - bulgaro" lang="bg" hreflang="bg" data-title="Физична величина" data-language-autonym="Български" data-language-local-name="bulgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AD%E0%A7%8C%E0%A6%A4_%E0%A6%B0%E0%A6%BE%E0%A6%B6%E0%A6%BF" title="ভৌত রাশি - bengalese" lang="bn" hreflang="bn" data-title="ভৌত রাশি" data-language-autonym="বাংলা" data-language-local-name="bengalese" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Mjerna_veli%C4%8Dina" title="Mjerna veličina - bosniaco" lang="bs" hreflang="bs" data-title="Mjerna veličina" data-language-autonym="Bosanski" data-language-local-name="bosniaco" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Magnitud_f%C3%ADsica" title="Magnitud física - catalano" lang="ca" hreflang="ca" data-title="Magnitud física" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Fyzik%C3%A1ln%C3%AD_veli%C4%8Dina" title="Fyzikální veličina - ceco" lang="cs" hreflang="cs" data-title="Fyzikální veličina" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%9A%D0%B0%D0%BF_(%D1%84%D0%B8%D0%B7%D0%B8%D0%BA%D0%B0)" title="Кап (физика) - ciuvascio" lang="cv" hreflang="cv" data-title="Кап (физика)" data-language-autonym="Чӑвашла" data-language-local-name="ciuvascio" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Fysisk_st%C3%B8rrelse" title="Fysisk størrelse - danese" lang="da" hreflang="da" data-title="Fysisk størrelse" data-language-autonym="Dansk" data-language-local-name="danese" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de badge-Q17437798 badge-goodarticle mw-list-item" title="voce di qualità"><a href="https://de.wikipedia.org/wiki/Physikalische_Gr%C3%B6%C3%9Fe" title="Physikalische Größe - tedesco" lang="de" hreflang="de" data-title="Physikalische Größe" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A6%CF%85%CF%83%CE%B9%CE%BA%CF%8C_%CE%BC%CE%AD%CE%B3%CE%B5%CE%B8%CE%BF%CF%82" title="Φυσικό μέγεθος - greco" lang="el" hreflang="el" data-title="Φυσικό μέγεθος" data-language-autonym="Ελληνικά" data-language-local-name="greco" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Physical_quantity" title="Physical quantity - inglese" lang="en" hreflang="en" data-title="Physical quantity" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Fizika_grando" title="Fizika grando - esperanto" lang="eo" hreflang="eo" data-title="Fizika grando" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Magnitud_f%C3%ADsica" title="Magnitud física - spagnolo" lang="es" hreflang="es" data-title="Magnitud física" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/F%C3%BC%C3%BCsikaline_suurus" title="Füüsikaline suurus - estone" lang="et" hreflang="et" data-title="Füüsikaline suurus" data-language-autonym="Eesti" data-language-local-name="estone" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Magnitude_fisiko" title="Magnitude fisiko - basco" lang="eu" hreflang="eu" data-title="Magnitude fisiko" data-language-autonym="Euskara" data-language-local-name="basco" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DA%A9%D9%85%DB%8C%D8%AA_%D9%81%DB%8C%D8%B2%DB%8C%DA%A9%DB%8C" title="کمیت فیزیکی - persiano" lang="fa" hreflang="fa" data-title="کمیت فیزیکی" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Suure" title="Suure - finlandese" lang="fi" hreflang="fi" data-title="Suure" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Grandeur_physique" title="Grandeur physique - francese" lang="fr" hreflang="fr" data-title="Grandeur physique" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Cainn%C3%ADocht_fhisiceach" title="Cainníocht fhisiceach - irlandese" lang="ga" hreflang="ga" data-title="Cainníocht fhisiceach" data-language-autonym="Gaeilge" data-language-local-name="irlandese" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Magnitude_f%C3%ADsica" title="Magnitude física - galiziano" lang="gl" hreflang="gl" data-title="Magnitude física" data-language-autonym="Galego" data-language-local-name="galiziano" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%92%D7%95%D7%93%D7%9C_%D7%A4%D7%99%D7%96%D7%99%D7%A7%D7%9C%D7%99" title="גודל פיזיקלי - ebraico" lang="he" hreflang="he" data-title="גודל פיזיקלי" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AD%E0%A5%8C%E0%A4%A4%E0%A4%BF%E0%A4%95_%E0%A4%B0%E0%A4%BE%E0%A4%B6%E0%A4%BF" title="भौतिक राशि - hindi" lang="hi" hreflang="hi" data-title="भौतिक राशि" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Mjerna_veli%C4%8Dina" title="Mjerna veličina - croato" lang="hr" hreflang="hr" data-title="Mjerna veličina" data-language-autonym="Hrvatski" data-language-local-name="croato" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Fizikai_mennyis%C3%A9g" title="Fizikai mennyiség - ungherese" lang="hu" hreflang="hu" data-title="Fizikai mennyiség" data-language-autonym="Magyar" data-language-local-name="ungherese" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%96%D5%AB%D5%A6%D5%AB%D5%AF%D5%A1%D5%AF%D5%A1%D5%B6_%D5%B4%D5%A5%D5%AE%D5%B8%D6%82%D5%A9%D5%B5%D5%B8%D6%82%D5%B6" title="Ֆիզիկական մեծություն - armeno" lang="hy" hreflang="hy" data-title="Ֆիզիկական մեծություն" data-language-autonym="Հայերեն" data-language-local-name="armeno" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Quantitate_physic" title="Quantitate physic - interlingua" lang="ia" hreflang="ia" data-title="Quantitate physic" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Besaran_fisika" title="Besaran fisika - indonesiano" lang="id" hreflang="id" data-title="Besaran fisika" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Fizikala_quanteso" title="Fizikala quanteso - ido" lang="io" hreflang="io" data-title="Fizikala quanteso" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E7%89%A9%E7%90%86%E9%87%8F" title="物理量 - giapponese" lang="ja" hreflang="ja" data-title="物理量" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A4%E1%83%98%E1%83%96%E1%83%98%E1%83%99%E1%83%A3%E1%83%A0%E1%83%98_%E1%83%A1%E1%83%98%E1%83%93%E1%83%98%E1%83%93%E1%83%94" title="ფიზიკური სიდიდე - georgiano" lang="ka" hreflang="ka" data-title="ფიზიკური სიდიდე" data-language-autonym="ქართული" data-language-local-name="georgiano" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%AC%BC%EB%A6%AC%EB%9F%89" title="물리량 - coreano" lang="ko" hreflang="ko" data-title="물리량" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Physikalesch_Gr%C3%A9isst" title="Physikalesch Gréisst - lussemburghese" lang="lb" hreflang="lb" data-title="Physikalesch Gréisst" data-language-autonym="Lëtzebuergesch" data-language-local-name="lussemburghese" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Fizikinis_dydis" title="Fizikinis dydis - lituano" lang="lt" hreflang="lt" data-title="Fizikinis dydis" data-language-autonym="Lietuvių" data-language-local-name="lituano" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Fizik%C4%81ls_lielums" title="Fizikāls lielums - lettone" lang="lv" hreflang="lv" data-title="Fizikāls lielums" data-language-autonym="Latviešu" data-language-local-name="lettone" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A4%D0%B8%D0%B7%D0%B8%D1%87%D0%BA%D0%B0_%D0%B2%D0%B5%D0%BB%D0%B8%D1%87%D0%B8%D0%BD%D0%B0" title="Физичка величина - macedone" lang="mk" hreflang="mk" data-title="Физичка величина" data-language-autonym="Македонски" data-language-local-name="macedone" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AD%E0%B5%97%E0%B4%A4%E0%B4%BF%E0%B4%95_%E0%B4%85%E0%B4%B3%E0%B4%B5%E0%B5%8D" title="ഭൗതിക അളവ് - malayalam" lang="ml" hreflang="ml" data-title="ഭൗതിക അളവ്" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Kuantiti_fizikal" title="Kuantiti fizikal - malese" lang="ms" hreflang="ms" data-title="Kuantiti fizikal" data-language-autonym="Bahasa Melayu" data-language-local-name="malese" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Physikaalsch_Gr%C3%B6tt" title="Physikaalsch Grött - basso tedesco" lang="nds" hreflang="nds" data-title="Physikaalsch Grött" data-language-autonym="Plattdüütsch" data-language-local-name="basso tedesco" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Natuurkundige_grootheid" title="Natuurkundige grootheid - olandese" lang="nl" hreflang="nl" data-title="Natuurkundige grootheid" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Storleik" title="Storleik - norvegese nynorsk" lang="nn" hreflang="nn" data-title="Storleik" data-language-autonym="Norsk nynorsk" data-language-local-name="norvegese nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Fysisk_st%C3%B8rrelse" title="Fysisk størrelse - norvegese bokmål" lang="nb" hreflang="nb" data-title="Fysisk størrelse" data-language-autonym="Norsk bokmål" data-language-local-name="norvegese bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Grandor_fisica" title="Grandor fisica - occitano" lang="oc" hreflang="oc" data-title="Grandor fisica" data-language-autonym="Occitan" data-language-local-name="occitano" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%AD%E0%A9%8C%E0%A8%A4%E0%A8%BF%E0%A8%95_%E0%A8%AE%E0%A8%BE%E0%A8%A4%E0%A8%B0%E0%A8%BE" title="ਭੌਤਿਕ ਮਾਤਰਾ - punjabi" lang="pa" hreflang="pa" data-title="ਭੌਤਿਕ ਮਾਤਰਾ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="punjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Wielko%C5%9B%C4%87_fizyczna" title="Wielkość fizyczna - polacco" lang="pl" hreflang="pl" data-title="Wielkość fizyczna" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Grand%C3%ABssa_f%C3%ACsica" title="Grandëssa fìsica - piemontese" lang="pms" hreflang="pms" data-title="Grandëssa fìsica" data-language-autonym="Piemontèis" data-language-local-name="piemontese" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Grandeza_f%C3%ADsica" title="Grandeza física - portoghese" lang="pt" hreflang="pt" data-title="Grandeza física" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Chhikan_kay" title="Chhikan kay - quechua" lang="qu" hreflang="qu" data-title="Chhikan kay" data-language-autonym="Runa Simi" data-language-local-name="quechua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/M%C4%83rime_fizic%C4%83" title="Mărime fizică - rumeno" lang="ro" hreflang="ro" data-title="Mărime fizică" data-language-autonym="Română" data-language-local-name="rumeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A4%D0%B8%D0%B7%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F_%D0%B2%D0%B5%D0%BB%D0%B8%D1%87%D0%B8%D0%BD%D0%B0" title="Физическая величина - russo" lang="ru" hreflang="ru" data-title="Физическая величина" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-rue mw-list-item"><a href="https://rue.wikipedia.org/wiki/%D0%A4%D0%B8%D0%B7%D0%B8%D0%BA%D0%B0%D0%BB%D0%BD%D0%B0_%D0%B2%D0%B5%D0%BB%D0%B8%D1%87%D0%B8%D0%BD%D0%B0" title="Физикална величина - ruteno" lang="rue" hreflang="rue" data-title="Физикална величина" data-language-autonym="Русиньскый" data-language-local-name="ruteno" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Physical_quantity" title="Physical quantity - scozzese" lang="sco" hreflang="sco" data-title="Physical quantity" data-language-autonym="Scots" data-language-local-name="scozzese" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D8%B7%D8%A8%D9%8A%D8%B9%D9%8A_%D9%85%D9%82%D8%AF%D8%A7%D8%B1" title="طبيعي مقدار - sindhi" lang="sd" hreflang="sd" data-title="طبيعي مقدار" data-language-autonym="سنڌي" data-language-local-name="sindhi" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Fizi%C4%8Dka_veli%C4%8Dina" title="Fizička veličina - serbo-croato" lang="sh" hreflang="sh" data-title="Fizička veličina" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-croato" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Physical_quantity" title="Physical quantity - Simple English" lang="en-simple" hreflang="en-simple" data-title="Physical quantity" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Fyzik%C3%A1lna_veli%C4%8Dina" title="Fyzikálna veličina - slovacco" lang="sk" hreflang="sk" data-title="Fyzikálna veličina" data-language-autonym="Slovenčina" data-language-local-name="slovacco" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Fizikalna_koli%C4%8Dina" title="Fizikalna količina - sloveno" lang="sl" hreflang="sl" data-title="Fizikalna količina" data-language-autonym="Slovenščina" data-language-local-name="sloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-smn mw-list-item"><a href="https://smn.wikipedia.org/wiki/Stu%C3%A1rus" title="Stuárus - sami di Inari" lang="smn" hreflang="smn" data-title="Stuárus" data-language-autonym="Anarâškielâ" data-language-local-name="sami di Inari" class="interlanguage-link-target"><span>Anarâškielâ</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A4%D0%B8%D0%B7%D0%B8%D1%87%D0%BA%D0%B0_%D0%B2%D0%B5%D0%BB%D0%B8%D1%87%D0%B8%D0%BD%D0%B0" title="Физичка величина - serbo" lang="sr" hreflang="sr" data-title="Физичка величина" data-language-autonym="Српски / srpski" data-language-local-name="serbo" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Storhet" title="Storhet - svedese" lang="sv" hreflang="sv" data-title="Storhet" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%87%E0%AE%AF%E0%AE%B1%E0%AF%8D%E0%AE%AA%E0%AE%BF%E0%AE%AF%E0%AE%B2%E0%AF%8D_%E0%AE%AA%E0%AE%A3%E0%AF%8D%E0%AE%AA%E0%AE%B3%E0%AE%B5%E0%AF%81%E0%AE%95%E0%AE%B3%E0%AF%8D" title="இயற்பியல் பண்பளவுகள் - tamil" lang="ta" hreflang="ta" data-title="இயற்பியல் பண்பளவுகள்" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%9B%E0%B8%A3%E0%B8%B4%E0%B8%A1%E0%B8%B2%E0%B8%93%E0%B8%97%E0%B8%B2%E0%B8%87%E0%B8%81%E0%B8%B2%E0%B8%A2%E0%B8%A0%E0%B8%B2%E0%B8%9E" title="ปริมาณทางกายภาพ - thailandese" lang="th" hreflang="th" data-title="ปริมาณทางกายภาพ" data-language-autonym="ไทย" data-language-local-name="thailandese" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Fiziksel_nicelik" title="Fiziksel nicelik - turco" lang="tr" hreflang="tr" data-title="Fiziksel nicelik" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A4%D1%96%D0%B7%D0%B8%D1%87%D0%BD%D0%B0_%D0%B2%D0%B5%D0%BB%D0%B8%D1%87%D0%B8%D0%BD%D0%B0" title="Фізична величина - ucraino" lang="uk" hreflang="uk" data-title="Фізична величина" data-language-autonym="Українська" data-language-local-name="ucraino" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C4%90%E1%BA%A1i_l%C6%B0%E1%BB%A3ng_v%E1%BA%ADt_l%C3%BD" title="Đại lượng vật lý - vietnamita" lang="vi" hreflang="vi" data-title="Đại lượng vật lý" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%89%A9%E7%90%86%E9%87%8F" title="物理量 - wu" lang="wuu" hreflang="wuu" data-title="物理量" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%89%A9%E7%90%86%E9%87%8F" title="物理量 - cinese" lang="zh" hreflang="zh" data-title="物理量" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%89%A9%E7%90%86%E9%87%8F" title="物理量 - cantonese" 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class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q107715" title="Collegamento all'elemento connesso dell'archivio dati [g]" accesskey="g"><span>Elemento Wikidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Strumenti pagine"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aspetto"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" 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lang="it" dir="ltr"><p>Una <b>grandezza fisica</b> è la <a href="/wiki/Propriet%C3%A0_fisica" title="Proprietà fisica">proprietà fisica</a> di un <a href="/wiki/Fenomeno#Il_termine_fenomeno_in_campo_scientifico" title="Fenomeno">fenomeno</a>, <a href="/wiki/Corpo_(fisica)" title="Corpo (fisica)">corpo</a> o <a href="/wiki/Sostanza_pura" title="Sostanza pura">sostanza</a>, che può essere espressa quantitativamente mediante un <a href="/wiki/Numero" title="Numero">numero</a> e un riferimento,<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> ovvero che può essere <a href="/wiki/Misurazione" title="Misurazione">misurata</a>. </p><p>Nella seconda edizione del <i>Vocabolario Internazionale di Metrologia</i> (1993) una grandezza era definita come "<i>la <a href="/wiki/Propriet%C3%A0_fisica" title="Proprietà fisica">proprietà</a> misurabile di un <a href="/wiki/Fenomeno#Il_termine_fenomeno_in_campo_scientifico" title="Fenomeno">fenomeno</a>, <a href="/wiki/Corpo_(fisica)" title="Corpo (fisica)">corpo</a> o <a href="/wiki/Sostanza_pura" title="Sostanza pura">sostanza</a>, che può essere distinta qualitativamente e determinata quantitativamente</i>";<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> pertanto, la misurazione, e di conseguenza la qualifica di grandezza, non può essere applicata alle proprietà nominali.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Nella definizione di "grandezza" del <i>VIM nepe 3</i> il termine "riferimento" può essere una <a href="/wiki/Unit%C3%A0_di_misura" title="Unità di misura">unità di misura</a>, una <a href="/w/index.php?title=Procedura_di_misura&action=edit&redlink=1" class="new" title="Procedura di misura (la pagina non esiste)">procedura di misura</a>, o un <a href="/wiki/Materiale_di_riferimento" title="Materiale di riferimento">materiale di riferimento</a>, o una loro combinazione.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Sebbene in base a questa definizione, il concetto di "grandezza" coincida con quello di "<a href="/wiki/Grandezza_fisica_scalare" class="mw-redirect" title="Grandezza fisica scalare">grandezza fisica scalare</a>", può essere considerato "grandezza" anche un <a href="/wiki/Vettore_(fisica)" class="mw-redirect" title="Vettore (fisica)">vettore</a> le cui componenti siano grandezze.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>Il concetto di grandezza, inoltre, può essere specificato progressivamente in vari livelli di concetti specifici;<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> per esempio, la grandezza "<a href="/wiki/Lunghezza" title="Lunghezza">lunghezza</a>" può essere specificata in quelle di <a href="/wiki/Raggio_(geometria)" title="Raggio (geometria)">raggio</a> o di <a href="/wiki/Lunghezza_d%27onda" title="Lunghezza d'onda">lunghezza d'onda</a>. </p> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Messschieber.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/94/Messschieber.jpg/120px-Messschieber.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/94/Messschieber.jpg/180px-Messschieber.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/94/Messschieber.jpg/240px-Messschieber.jpg 2x" data-file-width="1000" data-file-height="1000" /></a></span></div> <div class="gallerytext"></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Samenwaage.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/16/Samenwaage.jpg/120px-Samenwaage.jpg" decoding="async" width="120" height="111" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/16/Samenwaage.jpg/180px-Samenwaage.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/16/Samenwaage.jpg/240px-Samenwaage.jpg 2x" data-file-width="591" data-file-height="545" /></a></span></div> <div class="gallerytext"></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Clinical_thermometer_38.7.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Clinical_thermometer_38.7.JPG/120px-Clinical_thermometer_38.7.JPG" decoding="async" width="120" height="74" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Clinical_thermometer_38.7.JPG/180px-Clinical_thermometer_38.7.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/93/Clinical_thermometer_38.7.JPG/240px-Clinical_thermometer_38.7.JPG 2x" data-file-width="3112" data-file-height="1927" /></a></span></div> <div class="gallerytext"></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Amp%C3%A8remetre.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Amp%C3%A8remetre.jpg/120px-Amp%C3%A8remetre.jpg" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Amp%C3%A8remetre.jpg/180px-Amp%C3%A8remetre.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Amp%C3%A8remetre.jpg/240px-Amp%C3%A8remetre.jpg 2x" data-file-width="640" data-file-height="480" /></a></span></div> <div class="gallerytext"></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Braun_ABW30_(schwarz).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Braun_ABW30_%28schwarz%29.jpg/120px-Braun_ABW30_%28schwarz%29.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Braun_ABW30_%28schwarz%29.jpg/180px-Braun_ABW30_%28schwarz%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Braun_ABW30_%28schwarz%29.jpg/240px-Braun_ABW30_%28schwarz%29.jpg 2x" data-file-width="800" data-file-height="797" /></a></span></div> <div class="gallerytext"></div> </li> </ul> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Confrontare_e_rapportare">Confrontare e rapportare</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Grandezza_fisica&veaction=edit&section=1" title="Modifica la sezione Confrontare e rapportare" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Grandezza_fisica&action=edit&section=1" title="Edit section's source code: Confrontare e rapportare"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Nel <a href="/wiki/Sistema_internazionale_di_unit%C3%A0_di_misura" title="Sistema internazionale di unità di misura">SI</a> (Sistema internazionale di unità di misura), adottato per legge in Italia dal 1976 e obbligatorio negli atti pubblici, le grandezze si dividono in 7 <i>grandezze base</i> e numerose <i>grandezze derivate</i> dalle precedenti. Condizione necessaria perché una (classe di equivalenza di) proprietà sia misurabile è quella di poter stabilire una <a href="/wiki/Relazione_d%27ordine" title="Relazione d'ordine">relazione d'ordine</a> fra quelle proprietà in sistemi diversi: poter giudicare quale sistema esibisce una proprietà in misura maggiore dell'altro. Se tale confronto può essere basato sul <i>rapporto</i>, espresso da un numero, fra le proprietà dei due sistemi, allora la classe di equivalenza di quelle proprietà costituisce una <i>grandezza fisica</i>. </p><p>In questo caso, è possibile scegliere la proprietà di un particolare sistema ed eleggerla a <i><a href="/wiki/Unit%C3%A0_di_misura" title="Unità di misura">unità di misura</a></i> per quella grandezza fisica. Fissata l'unità di misura, la quantità di tale grandezza per un qualsiasi altro sistema potrà dunque essere univocamente specificata da un <a href="/wiki/Numero" title="Numero">valore numerico</a> ottenuto dal rapporto con la proprietà scelta come campione di riferimento. Possiamo quindi esprimere il valore di una grandezza fisica <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>M</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f82cade9898ced02fdd08712e5f0c0151758a0dd" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.442ex; height:2.176ex;" alt="{\displaystyle M}"></span> come il prodotto di un valore numerico <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \{M\}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mo fence="false" stretchy="false">{</mo> <mi>M</mi> <mo fence="false" stretchy="false">}</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \{M\}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2c5aef035206076aa742682c61c84264c739db1c" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:4.767ex; height:2.843ex;" alt="{\displaystyle \{M\}}"></span> e un'<a href="/wiki/Unit%C3%A0_di_misura" title="Unità di misura">unità di misura</a> <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle [M]}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mo stretchy="false">[</mo> <mi>M</mi> <mo stretchy="false">]</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle [M]}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e5ca74e595b2281c0aef1897ecafa282d1f182e2" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:3.736ex; height:2.843ex;" alt="{\displaystyle [M]}"></span>: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M=\{M\}\times [M]}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>M</mi> <mo>=</mo> <mo fence="false" stretchy="false">{</mo> <mi>M</mi> <mo fence="false" stretchy="false">}</mo> <mo>×</mo> <mo stretchy="false">[</mo> <mi>M</mi> <mo stretchy="false">]</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M=\{M\}\times [M]}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8b03fb0519d0c6c8c1ac054d7bf687b4808e19ad" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:16.884ex; height:2.843ex;" alt="{\displaystyle M=\{M\}\times [M]}"></span></dd></dl> <p>Esistono anche grandezze adimensionali, per le quali non è necessario definire un'unità di misura (ad esempio la <a href="/wiki/Frazione_molare" title="Frazione molare">frazione molare</a> e il <a href="/wiki/Numero_di_Reynolds" title="Numero di Reynolds">numero di Reynolds</a>). Come detto, confrontare proprietà fisiche omogenee significa semplicemente stabilire fra esse una <a href="/wiki/Relazione_d%27ordine" title="Relazione d'ordine">relazione d'ordine</a> in sistemi diversi; diversamente, la possibilità di valutare un rapporto numerico fra due proprietà, come specificato sopra, è una condizione più forte. </p><p>Un tipico esempio del primo caso è dato dalla <a href="/wiki/Temperatura" title="Temperatura">temperatura</a>. Sebbene, dati due corpi, sia sempre possibile giudicare quale sia a temperatura maggiore o minore dell'altro (ad esempio misurando la direzione in cui fluisce il <a href="/wiki/Calore" title="Calore">calore</a>), tuttavia non avrebbe alcun significato fisico l'affermazione secondo cui un corpo si trova a temperatura, per dire, doppia di quella di un altro. Nel caso della temperatura, ovvero nel caso di una proprietà fisica che manifesta soltanto una relazione d'ordine, è possibile applicare metodi quantitativi solo definendo una scala di misura, che in questo caso diremo <i><a href="/wiki/Temperatura#Tabella_comparativa_delle_varie_scale_di_misurazione_della_temperatura" title="Temperatura">termometrica</a></i>. Anche se con abuso di linguaggio si parla di <i><a href="/wiki/Temperatura#Unità_di_misura_della_temperatura" title="Temperatura">unità di misura della temperatura</a></i>, si tratta in realtà di una corrispondenza arbitraria fra la proprietà esibita da diversi fenomeni e una porzione dell'asse dei <a href="/wiki/Numeri_reali" class="mw-redirect" title="Numeri reali">numeri reali</a>. Sotto tale aspetto, la temperatura, pur rientrando come grandezza fondamentale nel SI, non è assimilabile appieno alla definizione rigorosa di <i>grandezza fisica</i> data all'inizio. </p><p>L'arbitrarietà della scelta dell'unità di misura, infatti, è in questo caso molto maggiore di quella della scelta per grandezze fisiche di cui esiste una <i>scala naturale</i> di confronto: se un sistema presenta <i>il doppio</i> di una data proprietà rispetto a un altro sistema, i valori numerici <i>Q</i> rispecchieranno tale rapporto, qualsiasi sia l'unità di misura scelta per tale grandezza. Ad esempio, la <a href="/wiki/Lunghezza" title="Lunghezza">lunghezza</a> di un oggetto può essere confrontata con quella di un altro oggetto. La lunghezza, in astratto, costituisce una grandezza fisica perché è possibile stabilire la <a href="/wiki/Proporzionalit%C3%A0_(matematica)" title="Proporzionalità (matematica)">proporzione</a>, ovvero il rapporto fra la lunghezza specifica di due oggetti. Possiamo allora scegliere la lunghezza di un oggetto particolare, come il <a href="/wiki/Metro" title="Metro">metro</a> <a href="/wiki/Campione_(metrologia)" title="Campione (metrologia)">campione</a>, e utilizzarla come unità di misura per la lunghezza di qualsiasi altro oggetto. </p> <div class="mw-heading mw-heading2"><h2 id="Classificazione">Classificazione</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Grandezza_fisica&veaction=edit&section=2" title="Modifica la sezione Classificazione" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Grandezza_fisica&action=edit&section=2" title="Edit section's source code: Classificazione"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Le grandezze fisiche possono essere: </p> <ul><li><i>intrinseche</i>: non dipendono dal <a href="/wiki/Sistema_di_riferimento" title="Sistema di riferimento">sistema di riferimento</a> scelto (pressione, volume)</li> <li><i>estrinseche</i>: dipendono dal <a href="/wiki/Sistema_di_riferimento" title="Sistema di riferimento">sistema di riferimento</a> scelto (giacitura, velocità)</li> <li><i>globali</i>: si riferiscono all'intero <a href="/wiki/Sistema" title="Sistema">sistema</a> fisico o a porzioni di esso (volume, massa)</li> <li><i>locali</i>: si riferiscono a un <a href="/wiki/Intorno" title="Intorno">intorno</a> puntuale del <a href="/wiki/Sistema" title="Sistema">sistema</a> fisico (pressione, temperatura)</li> <li><i><a href="/wiki/Propriet%C3%A0_intensive_ed_estensive" title="Proprietà intensive ed estensive">estensive</a></i>: dipendono dalla quantità di materia del sistema (volume V, entalpia H, entropia S, ammontare di sostanza n)</li> <li><i><a href="/wiki/Propriet%C3%A0_intensive_ed_estensive" title="Proprietà intensive ed estensive">intensive</a></i>: non dipendono dalla quantità di materia del sistema (pressione p, temperatura T, composizione χ<sub>i</sub>, potenziale chimico μ o μ<sub>i</sub>). Sono ottenute dal rapporto di grandezze estensive e possono essere adimensionali.</li> <li><i>specifiche</i> (o <i>massiche</i> o <i>ponderali</i>): sono riferite a una unità di <a href="/wiki/Massa_(fisica)" title="Massa (fisica)">massa</a></li> <li><i>molari</i>: sono riferite a una <a href="/wiki/Mole" title="Mole">mole</a> di <a href="/wiki/Sostanza_pura" title="Sostanza pura">sostanza pura</a> (volume molare V<sub>m</sub>, entalpia molare H<sub>m</sub>, potenziale chimico G<sub>m</sub> o μ, capacità termica molare a p costante C<sub>p,m</sub>). Nel caso di una <a href="/wiki/Miscela_(chimica)" class="mw-redirect" title="Miscela (chimica)">miscela</a> di sostanze vengono definite anche <a href="/wiki/Potenziale_chimico" title="Potenziale chimico">grandezze molari parziali</a> riferite a una mole di un singolo componente.</li></ul> <div class="mw-heading mw-heading3"><h3 id="Grandezze_fondamentali">Grandezze fondamentali</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Grandezza_fisica&veaction=edit&section=3" title="Modifica la sezione Grandezze fondamentali" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Grandezza_fisica&action=edit&section=3" title="Edit section's source code: Grandezze fondamentali"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>La scelta delle grandezze base è il punto di partenza di ogni <a href="/wiki/Analisi_dimensionale" title="Analisi dimensionale">analisi dimensionale</a>. Il <a href="/wiki/Sistema_internazionale" class="mw-redirect" title="Sistema internazionale">Sistema internazionale</a> considera fondamentali queste sette grandezze fisiche<sup id="cite_ref-Brochure8_7-0" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>: </p> <table class="wikitable"> <tbody><tr> <th>Grandezza fondamentale SI </th> <th>Simbolo grandezza </th> <th>Simbolo della dimensione corrispondente </th> <th>Unità SI della grandezza </th> <th>Simbolo dell'unità SI </th></tr> <tr> <td><a href="/wiki/Lunghezza" title="Lunghezza">lunghezza</a></td> <td><i>l</i>, <i>x</i>, <i>r</i>, ecc.</td> <td>[L]</td> <td><a href="/wiki/Metro" title="Metro">metro</a></td> <td>m </td></tr> <tr> <td><a href="/wiki/Massa_(fisica)" title="Massa (fisica)">massa</a></td> <td><i>m</i></td> <td>[M]</td> <td><a href="/wiki/Chilogrammo" title="Chilogrammo">chilogrammo</a></td> <td>kg </td></tr> <tr> <td><a href="/wiki/Tempo_(fisica)" class="mw-redirect" title="Tempo (fisica)">tempo</a><sup id="cite_ref-Brochure8_7-1" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, durata<sup id="cite_ref-Brochure8_7-2" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>t</i></td> <td>[T]</td> <td><a href="/wiki/Secondo" title="Secondo">secondo</a></td> <td>s </td></tr> <tr> <td><a href="/wiki/Intensit%C3%A0_di_corrente" title="Intensità di corrente">intensità di corrente elettrica</a><sup id="cite_ref-Brochure8_7-3" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>I</i>, <i>i</i></td> <td>[I]</td> <td><a href="/wiki/Ampere" title="Ampere">ampere</a></td> <td>A </td></tr> <tr> <td><a href="/wiki/Temperatura_assoluta" title="Temperatura assoluta">temperatura</a><sup id="cite_ref-Brochure8_7-4" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>T</i></td> <td>[Θ]</td> <td><a href="/wiki/Kelvin" title="Kelvin">kelvin</a></td> <td>K </td></tr> <tr> <td><a href="/wiki/Quantit%C3%A0_di_sostanza" title="Quantità di sostanza">quantità di sostanza</a></td> <td><i>n</i></td> <td>[N]</td> <td><a href="/wiki/Mole" title="Mole">mole</a></td> <td>mol </td></tr> <tr> <td><a href="/wiki/Intensit%C3%A0_luminosa" title="Intensità luminosa">intensità luminosa</a></td> <td><i>I</i><sub>v</sub></td> <td>[J]</td> <td><a href="/wiki/Candela_(unit%C3%A0_di_misura)" title="Candela (unità di misura)">candela</a> /lumen</td> <td>cd </td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Grandezze_derivate">Grandezze derivate</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Grandezza_fisica&veaction=edit&section=4" title="Modifica la sezione Grandezze derivate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Grandezza_fisica&action=edit&section=4" title="Edit section's source code: Grandezze derivate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ogni altra grandezza fisica è omogenea a un prodotto di <a href="/wiki/Potenza_(matematica)" title="Potenza (matematica)">potenze</a> di grandezze fondamentali detto <i><a href="/wiki/Analisi_dimensionale" title="Analisi dimensionale">dimensione</a></i>, e grandezze (unita di misura) con la stessa dimensione sono fra loro omogenee per transitività, anche se solo alcune loro combinazioni hanno senso fisicamente. </p> <table class="wikitable"> <tbody><tr> <td colspan="6"> <div align="center"><i>Tabella di <a href="/wiki/Analisi_dimensionale" title="Analisi dimensionale">relazioni dimensionali</a> (22 grandezze<sup id="cite_ref-Brochure8_7-5" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>)</i></div> </td></tr> <tr> <th>Grandezza fisica </th> <th>Simbolo della grandezza </th> <th>Nome dell'unità SI </th> <th>Simbolo dell'unità SI </th> <th colspan="2">Unità corrispondenti </th></tr> <tr> <td><a href="/wiki/Frequenza" title="Frequenza">frequenza</a><sup id="cite_ref-Brochure8_7-6" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>f, ν</i></td> <td><a href="/wiki/Hertz" title="Hertz">hertz</a><sup id="cite_ref-Brochure8_7-7" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>Hz<sup id="cite_ref-Brochure8_7-8" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>s<sup>−1</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Forza_(fisica)" class="mw-redirect" title="Forza (fisica)">forza</a><sup id="cite_ref-Brochure8_7-9" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>F</i></td> <td><a href="/wiki/Newton_(unit%C3%A0_di_misura)" title="Newton (unità di misura)">newton</a><sup id="cite_ref-Brochure8_7-10" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>N<sup id="cite_ref-Brochure8_7-11" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>kg · m · s<sup>−2</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Pressione" title="Pressione">pressione</a><sup id="cite_ref-Brochure8_7-12" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, <a href="/wiki/Tensione_interna" title="Tensione interna">sollecitazione</a><sup id="cite_ref-Brochure8_7-13" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, <a href="/wiki/Pressione_di_vapore" title="Pressione di vapore">pressione di vapore</a> </td> <td><i>p</i></td> <td><a href="/wiki/Pascal_(unit%C3%A0_di_misura)" title="Pascal (unità di misura)">pascal</a><sup id="cite_ref-Brochure8_7-14" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>Pa<sup id="cite_ref-Brochure8_7-15" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>N · m<sup>−2</sup> </td> <td>= kg · m<sup>−1</sup> · s<sup>−2</sup> </td></tr> <tr> <td><a href="/wiki/Energia" title="Energia">energia</a><sup id="cite_ref-Brochure8_7-16" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, <a href="/wiki/Lavoro_(fisica)" title="Lavoro (fisica)">lavoro</a><sup id="cite_ref-Brochure8_7-17" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, <a href="/wiki/Calore" title="Calore">quantità di calore</a><sup id="cite_ref-Brochure8_7-18" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td><i>E, Q</i></td> <td><a href="/wiki/Joule" title="Joule">joule</a><sup id="cite_ref-Brochure8_7-19" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>J<sup id="cite_ref-Brochure8_7-20" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>N · m </td> <td>= kg · m<sup>2</sup> · s<sup>−2</sup> </td></tr> <tr> <td><a href="/wiki/Potenza_(fisica)" title="Potenza (fisica)">potenza</a><sup id="cite_ref-Brochure8_7-21" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, <a href="/wiki/Flusso_radiante" title="Flusso radiante">flusso radiante</a><sup id="cite_ref-Brochure8_7-22" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td><i>P, W</i></td> <td><a href="/wiki/Watt" title="Watt">watt</a><sup id="cite_ref-Brochure8_7-23" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>W<sup id="cite_ref-Brochure8_7-24" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>J · s<sup>−1</sup> </td> <td>= kg · m<sup>2</sup> · s<sup>−3</sup> </td></tr> <tr> <td><a href="/wiki/Carica_elettrica" title="Carica elettrica">carica elettrica</a><sup id="cite_ref-Brochure8_7-25" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, quantità di elettricità<sup id="cite_ref-Brochure8_7-26" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>q</i></td> <td><a href="/wiki/Coulomb" title="Coulomb">coulomb</a><sup id="cite_ref-Brochure8_7-27" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>C<sup id="cite_ref-Brochure8_7-28" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>A · s </td> <td> </td></tr> <tr> <td><a href="/wiki/Potenziale_elettrico" title="Potenziale elettrico">differenza di potenziale elettrica</a><sup id="cite_ref-Brochure8_7-29" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, <a href="/wiki/Forza_elettromotrice" title="Forza elettromotrice">forza elettromotrice</a><sup id="cite_ref-Brochure8_7-30" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, <a href="/wiki/Tensione_elettrica" title="Tensione elettrica">tensione elettrica</a> </td> <td><i>V, E</i></td> <td><a href="/wiki/Volt" title="Volt">volt</a><sup id="cite_ref-Brochure8_7-31" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>V<sup id="cite_ref-Brochure8_7-32" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>J · C<sup>−1</sup> </td> <td>= m<sup>2</sup> · kg · s<sup>−3</sup> · A<sup>−1</sup> </td></tr> <tr> <td><a href="/wiki/Resistenza_elettrica" title="Resistenza elettrica">resistenza elettrica</a><sup id="cite_ref-Brochure8_7-33" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>R</i></td> <td><a href="/wiki/Ohm" title="Ohm">ohm</a><sup id="cite_ref-Brochure8_7-34" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>Ω<sup id="cite_ref-Brochure8_7-35" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>V · A<sup>−1</sup> </td> <td>= m<sup>2</sup> · kg · s<sup>−3</sup> · A<sup>−2</sup> </td></tr> <tr> <td><a href="/wiki/Conduttanza_elettrica" title="Conduttanza elettrica">conduttanza elettrica</a><sup id="cite_ref-Brochure8_7-36" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>G</i></td> <td><a href="/wiki/Siemens_(unit%C3%A0_di_misura)" title="Siemens (unità di misura)">siemens</a><sup id="cite_ref-Brochure8_7-37" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>S<sup id="cite_ref-Brochure8_7-38" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>A · V<sup>−1</sup> </td> <td>= s<sup>3</sup> · A<sup>2</sup> · m<sup>−2</sup> · kg<sup>−1</sup> </td></tr> <tr> <td><a href="/wiki/Capacit%C3%A0_elettrica" title="Capacità elettrica">capacità elettrica</a><sup id="cite_ref-Brochure8_7-39" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>C</i></td> <td><a href="/wiki/Farad" title="Farad">farad</a><sup id="cite_ref-Brochure8_7-40" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>F<sup id="cite_ref-Brochure8_7-41" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>C · V<sup>−1</sup> </td> <td>= s<sup>4</sup> · A<sup>2</sup> · m<sup>−2</sup> · kg<sup>−1</sup> </td></tr> <tr> <td><a href="/wiki/Campo_magnetico" title="Campo magnetico">densità di flusso magnetico</a><sup id="cite_ref-Brochure8_7-42" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>B</i></td> <td><a href="/wiki/Tesla_(unit%C3%A0_di_misura)" title="Tesla (unità di misura)">tesla</a><sup id="cite_ref-Brochure8_7-43" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>T<sup id="cite_ref-Brochure8_7-44" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>V · s · m<sup>−2</sup> </td> <td>= kg · s<sup>−2</sup> · A<sup>−1</sup> </td></tr> <tr> <td><a href="/wiki/Flusso_magnetico" title="Flusso magnetico">flusso magnetico</a><sup id="cite_ref-Brochure8_7-45" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>Φ(B)</i></td> <td><a href="/wiki/Weber_(unit%C3%A0_di_misura)" title="Weber (unità di misura)">weber</a><sup id="cite_ref-Brochure8_7-46" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>Wb<sup id="cite_ref-Brochure8_7-47" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>V · s </td> <td>= m<sup>2</sup> · kg · s<sup>−2</sup> · A<sup>−1</sup> </td></tr> <tr> <td><a href="/wiki/Induttanza" title="Induttanza">induttanza</a><sup id="cite_ref-Brochure8_7-48" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>L</i></td> <td><a href="/wiki/Henry_(unit%C3%A0_di_misura)" title="Henry (unità di misura)">henry</a><sup id="cite_ref-Brochure8_7-49" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>H<sup id="cite_ref-Brochure8_7-50" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>V · s · A<sup>−1</sup> </td> <td>= m<sup>2</sup> · kg · s<sup>−2</sup> · A<sup>−2</sup> </td></tr> <tr> <td><a href="/wiki/Temperatura" title="Temperatura">temperatura Celsius</a><sup id="cite_ref-Brochure8_7-51" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>T</i></td> <td><a href="/wiki/Grado_Celsius" title="Grado Celsius">grado Celsius</a><sup id="cite_ref-Brochure8_7-52" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>°C<sup id="cite_ref-Brochure8_7-53" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>K<sup id="cite_ref-Brochure8_7-54" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup></td> <td>  </td></tr> <tr> <td><a href="/wiki/Angolo" title="Angolo">angolo piano</a><sup id="cite_ref-Brochure8_7-55" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-angolo_9-0" class="reference"><a href="#cite_note-angolo-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </td> <td><i>φ, θ</i></td> <td><a href="/wiki/Radiante" title="Radiante">radiante</a><sup id="cite_ref-Brochure8_7-56" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>rad<sup id="cite_ref-Brochure8_7-57" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>1 </td> <td>= m · m<sup>−1</sup> </td></tr> <tr> <td><a href="/wiki/Angolo_solido" title="Angolo solido">angolo solido</a><sup id="cite_ref-Brochure8_7-58" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-angolo_9-1" class="reference"><a href="#cite_note-angolo-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></td> <td><i>Ω</i></td> <td><a href="/wiki/Steradiante" title="Steradiante">steradiante</a><sup id="cite_ref-Brochure8_7-59" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>sr<sup id="cite_ref-Brochure8_7-60" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>1 </td> <td>= m<sup>2</sup> · m<sup>−2</sup> </td></tr> <tr> <td><a href="/wiki/Flusso_luminoso" title="Flusso luminoso">flusso luminoso</a><sup id="cite_ref-Brochure8_7-61" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td></td> <td><a href="/wiki/Lumen" title="Lumen">lumen</a><sup id="cite_ref-Brochure8_7-62" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>lm<sup id="cite_ref-Brochure8_7-63" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>cd · sr </td> <td> </td></tr> <tr> <td><a href="/wiki/Illuminamento" title="Illuminamento">illuminamento</a><sup id="cite_ref-Brochure8_7-64" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td></td> <td><a href="/wiki/Lux" title="Lux">lux</a><sup id="cite_ref-Brochure8_7-65" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>lx<sup id="cite_ref-Brochure8_7-66" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>cd · sr · m<sup>−2</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Attivit%C3%A0_(fisica)" class="mw-redirect" title="Attività (fisica)">attività</a> riferita a un <a href="/wiki/Radionuclide" title="Radionuclide">radionuclide</a><sup id="cite_ref-Brochure8_7-67" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup></td> <td>A</td> <td><a href="/wiki/Becquerel" title="Becquerel">becquerel</a><sup id="cite_ref-Brochure8_7-68" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>Bq<sup id="cite_ref-Brochure8_7-69" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>s<sup>−1</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Dose_assorbita" title="Dose assorbita">dose assorbita</a><sup id="cite_ref-Brochure8_7-70" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, energia specifica (impartita)<sup id="cite_ref-Brochure8_7-71" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, kerma<sup id="cite_ref-Brochure8_7-72" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>D</i></td> <td><a href="/wiki/Gray_(unit%C3%A0_di_misura)" title="Gray (unità di misura)">gray</a><sup id="cite_ref-Brochure8_7-73" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>Gy<sup id="cite_ref-Brochure8_7-74" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>J · kg<sup>−1</sup> </td> <td>= m<sup>2</sup> · s<sup>−2</sup> </td></tr> <tr> <td><a href="/wiki/Dose_equivalente" title="Dose equivalente">dose equivalente</a><sup id="cite_ref-Brochure8_7-75" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, dose ambientale equivalente<sup id="cite_ref-Brochure8_7-76" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, dose direzionale equivalente<sup id="cite_ref-Brochure8_7-77" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>, dose personale equivalente<sup id="cite_ref-Brochure8_7-78" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td><i>H</i> </td> <td rowspan="2"><a href="/wiki/Sievert" title="Sievert">sievert</a> </td> <td rowspan="2">Sv </td> <td rowspan="2">J · kg<sup>−1</sup> </td> <td rowspan="2">= m<sup>2</sup> · s<sup>−2</sup> </td></tr> <tr> <td><a href="/wiki/Dose_efficace" title="Dose efficace">dose efficace</a></td> <td><i>E</i> </td></tr> <tr> <td><a href="/wiki/Attivit%C3%A0_catalitica" title="Attività catalitica">attività catalitica</a><sup id="cite_ref-Brochure8_7-79" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td></td> <td><a href="/wiki/Katal" title="Katal">katal</a><sup id="cite_ref-Brochure8_7-80" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></td> <td>kat<sup id="cite_ref-Brochure8_7-81" class="reference"><a href="#cite_note-Brochure8-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td> <td>mol · s<sup>−1</sup> </td> <td> </td></tr> <tr> <td colspan="6"> <div align="center"><i>altre grandezze fisiche</i></div> </td></tr> <tr> <td><a href="/wiki/Area" title="Area">area</a></td> <td><i>A</i></td> <td><a href="/wiki/Metro_quadro" class="mw-redirect" title="Metro quadro">metro quadro</a></td> <td>m² </td> <td>m<sup>2</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Volume" title="Volume">volume</a></td> <td><i>V</i></td> <td><a href="/wiki/Metro_cubo" title="Metro cubo">metro cubo</a></td> <td>m³ </td> <td>m<sup>3</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Velocit%C3%A0" title="Velocità">velocità</a></td> <td><i>v</i></td> <td><a href="/wiki/Metro_al_secondo" title="Metro al secondo">metro al secondo</a></td> <td>m/s </td> <td>m · s<sup>−1</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Velocit%C3%A0_angolare" title="Velocità angolare">velocità angolare</a></td> <td><i>ω</i></td> <td> </td> <td>  </td> <td>s<sup>−1</sup><br />rad · s<sup>−1</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Accelerazione" title="Accelerazione">accelerazione</a></td> <td><i>a</i></td> <td> </td> <td>  </td> <td>m · s<sup>−2</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Momento_meccanico" title="Momento meccanico">momento meccanico</a></td> <td> </td> <td> </td> <td>  </td> <td>N · m </td> <td>= m<sup>2</sup> · kg · s<sup>−2</sup> </td></tr> <tr> <td><a href="/wiki/Numero_d%27onda" title="Numero d'onda">numero d'onda</a></td> <td><i>n</i></td> <td> </td> <td>  </td> <td>m<sup>−1</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Densit%C3%A0" title="Densità">densità</a></td> <td>ρ</td> <td>chilogrammo al metro cubo</td> <td>kg/m³ </td> <td>kg · m<sup>−3</sup> </td> <td> </td></tr> <tr> <td>volume specifico</td> <td> </td> <td> </td> <td>  </td> <td>m<sup>3</sup> · kg<sup>−1</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Molarit%C3%A0" class="mw-redirect" title="Molarità">molarità</a> SI<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </td> <td> </td> <td> </td> <td>  </td> <td>mol · dm<sup>−3</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Volume_molare" title="Volume molare">volume molare</a></td> <td><i>V</i><sub>m</sub></td> <td> </td> <td>  </td> <td>m<sup>3</sup> · mol<sup>−1</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Capacit%C3%A0_termica" title="Capacità termica">capacità termica</a>, <a href="/wiki/Entropia_(termodinamica)" class="mw-redirect" title="Entropia (termodinamica)">entropia</a></td> <td><i>C, S</i></td> <td>  </td> <td>  </td> <td>J · K<sup>−1</sup> </td> <td>= m<sup>2</sup> · kg · s<sup>−2</sup> · K<sup>−1</sup> </td></tr> <tr> <td><a href="/wiki/Calore_specifico" title="Calore specifico">calore molare</a>, <a href="/wiki/Entropia_molare_standard" title="Entropia molare standard">entropia molare</a> </td> <td><i>C</i><sub>m</sub>, S<sub>m</sub></td> <td> </td> <td>  </td> <td>J · K<sup>−1</sup> · mol<sup>−1</sup> </td> <td>= m<sup>2</sup> · kg · s<sup>−2</sup> · K<sup>−1</sup> · mol<sup>−1</sup> </td></tr> <tr> <td><a href="/wiki/Calore_specifico" title="Calore specifico">calore specifico</a>, entropia specifica </td> <td><i>c, s</i></td> <td> </td> <td>  </td> <td>J · K<sup>−1</sup> · kg<sup>−1</sup> </td> <td>= m<sup>2</sup> · s<sup>−2</sup> · K<sup>−1</sup> </td></tr> <tr> <td>energia molare</td> <td><i>E</i><sub>m</sub></td> <td> </td> <td>  </td> <td>J · mol<sup>−1</sup> </td> <td>= m<sup>2</sup> · kg · s<sup>−2</sup> · mol<sup>−1</sup> </td></tr> <tr> <td>energia specifica</td> <td><i>e</i></td> <td> </td> <td>  </td> <td>J · kg<sup>−1</sup> </td> <td>= m<sup>2</sup> · s<sup>−2</sup> </td></tr> <tr> <td>densità di energia</td> <td><i>U</i></td> <td> </td> <td>  </td> <td>J · m<sup>−3</sup> </td> <td>= m<sup>−1</sup> · kg · s<sup>−2</sup> </td></tr> <tr> <td><a href="/wiki/Tensione_superficiale" title="Tensione superficiale">tensione superficiale</a></td> <td><i>σ</i></td> <td> </td> <td>  </td> <td>N · m<sup>−1</sup> </td> <td>= J · m<sup>−2</sup><br />= kg · s<sup>−2</sup> </td></tr> <tr> <td>densità di flusso calorico, irradianza </td> <td>σ</td> <td> </td> <td>  </td> <td>W · m<sup>−2</sup> </td> <td>= kg · s<sup>−3</sup> </td></tr> <tr> <td><a href="/wiki/Conduttivit%C3%A0_termica" class="mw-redirect" title="Conduttività termica">conduttività termica</a></td> <td> </td> <td> </td> <td>  </td> <td>W · m<sup>−1</sup> · K<sup>−1</sup> </td> <td>= m · kg · s<sup>−3</sup> · K<sup>−1</sup> </td></tr> <tr> <td><a href="/wiki/Viscosit%C3%A0#Viscosità_cinematica_o_diffusività_cinematica" title="Viscosità">viscosità cinematica</a> </td> <td><i>η</i></td> <td> </td> <td>  </td> <td>m<sup>2</sup> · s<sup>−1</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Viscosit%C3%A0#Viscosità_assoluta_(o_dinamica)" title="Viscosità">viscosità dinamica</a></td> <td><i>ρ</i></td> <td> </td> <td>  </td> <td>N · s · m<sup>−2</sup> </td> <td>= Pa · s<br />= m<sup>−1</sup> · kg · s<sup>−1</sup> </td></tr> <tr> <td>densità di carica elettrica</td> <td>  </td> <td> </td> <td>  </td> <td>C · m<sup>−3</sup> </td> <td>= m<sup>−3</sup> · s · A </td></tr> <tr> <td>densità di corrente elettrica</td> <td><i>j</i></td> <td>  </td> <td>  </td> <td>A · m<sup>−2</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Conduttivit%C3%A0_elettrica" title="Conduttività elettrica">conduttività elettrica</a></td> <td><i>ρ</i></td> <td>  </td> <td>  </td> <td>S · m<sup>−1</sup> </td> <td>= m<sup>−3</sup> · kg<sup>−1</sup> · s<sup>3</sup> · A<sup>2</sup> </td></tr> <tr> <td>conduttività molare</td> <td><i>ρ</i></td> <td> </td> <td>  </td> <td>S · m<sup>2</sup> · mol<sup>−1</sup> </td> <td>= kg<sup>−1</sup> · mol<sup>−1</sup> · s<sup>3</sup> · A<sup>2</sup> </td></tr> <tr> <td><a href="/wiki/Permittivit%C3%A0_elettrica" title="Permittività elettrica">permittività elettrica</a></td> <td><i>ε</i></td> <td> </td> <td>  </td> <td>F · m<sup>−1</sup> </td> <td>= m<sup>−3</sup> · kg<sup>−1</sup> · s<sup>4</sup> · A<sup>2</sup> </td></tr> <tr> <td><a href="/wiki/Permeabilit%C3%A0_magnetica" title="Permeabilità magnetica">permeabilità magnetica</a></td> <td><i>μ</i></td> <td> </td> <td>  </td> <td>H · m<sup>−1</sup> </td> <td>= m · kg · s<sup>−2</sup> · A<sup>−2</sup> </td></tr> <tr> <td>(intensità) di <a href="/wiki/Campo_elettrico" title="Campo elettrico">campo elettrico</a></td> <td><i>F, E</i></td> <td>  </td> <td>  </td> <td>V · m<sup>−1</sup> </td> <td>= m · kg · s<sup>−3</sup> · A<sup>−1</sup> </td></tr> <tr> <td>(intensità) di <a href="/wiki/Campo_magnetico" title="Campo magnetico">campo magnetico</a></td> <td><i>H</i></td> <td>  </td> <td>  </td> <td>A · m<sup>−1</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Magnetizzazione" class="mw-redirect" title="Magnetizzazione">magnetizzazione</a></td> <td><i>M</i></td> <td>  </td> <td>  </td> <td>A · m<sup>−1</sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/Luminanza_(fisica)" title="Luminanza (fisica)">luminanza</a></td> <td> </td> <td> <sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup></td> <td>  </td> <td>cd · m<sup>−2</sup> </td> <td> </td></tr> <tr> <td>esposizione (raggi X e gamma)</td> <td> </td> <td>  </td> <td>  </td> <td>C · kg<sup>−1</sup> </td> <td>= kg<sup>−1</sup> · s · A </td></tr> <tr> <td>tasso di dose assorbita</td> <td> </td> <td> </td> <td>  </td> <td>Gy · s<sup>−1</sup> </td> <td>= m<sup>2</sup> · s<sup>−3</sup> </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Grandezza_fisica&veaction=edit&section=5" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Grandezza_fisica&action=edit&section=5" title="Edit section's source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1"><b>^</b></a> <span class="reference-text">Joint Committee for Guides in Metrology (JCGM), <i>International Vocabulary of Metrology, Basic and General Concepts and Associated Terms</i> (<i>VIM</i>), III ed., Pavillon de Breteuil: JCGM 200:2008, 1.1 (<a rel="nofollow" class="external text" href="http://www.bipm.org/utils/common/documents/jcgm/JCGM_200_2008.pdf">on-line</a>)</span> </li> <li id="cite_note-2"><a href="#cite_ref-2"><b>^</b></a> <span class="reference-text">ISO Technical Advisory Group 4 (TAG 4), <i>International vocabulary of basic and general terms in metrology</i>, second edition, 1993, Geneva: International Organization for Standardization, 1993, 1.1</span> </li> <li id="cite_note-3"><a href="#cite_ref-3"><b>^</b></a> <span class="reference-text"><i>International Vocabulary of Metrology</i>, 2008, 2.1</span> </li> <li id="cite_note-4"><a href="#cite_ref-4"><b>^</b></a> <span class="reference-text"><i>International Vocabulary of Metrology</i>, 2008, 1.1 nota 2</span> </li> <li id="cite_note-5"><a href="#cite_ref-5"><b>^</b></a> <span class="reference-text"><i>International Vocabulary of Metrology</i>, 2008, 1.1 nota 5</span> </li> <li id="cite_note-6"><a href="#cite_ref-6"><b>^</b></a> <span class="reference-text"><i>International Vocabulary of Metrology</i>, 2008, 1.1 nota 1</span> </li> <li id="cite_note-Brochure8-7"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Brochure8_7-0">a</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-1">b</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-2">c</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-3">d</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-4">e</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-5">f</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-6">g</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-7">h</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-8">i</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-9">j</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-10">k</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-11">l</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-12">m</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-13">n</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-14">o</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-15">p</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-16">q</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-17">r</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-18">s</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-19">t</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-20">u</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-21">v</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-22">w</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-23">x</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-24">y</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-25">z</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-26">aa</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-27">ab</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-28">ac</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-29">ad</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-30">ae</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-31">af</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-32">ag</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-33">ah</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-34">ai</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-35">aj</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-36">ak</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-37">al</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-38">am</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-39">an</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-40">ao</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-41">ap</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-42">aq</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-43">ar</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-44">as</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-45">at</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-46">au</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-47">av</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-48">aw</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-49">ax</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-50">ay</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-51">az</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-52">ba</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-53">bb</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-54">bc</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-55">bd</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-56">be</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-57">bf</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-58">bg</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-59">bh</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-60">bi</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-61">bj</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-62">bk</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-63">bl</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-64">bm</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-65">bn</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-66">bo</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-67">bp</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-68">bq</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-69">br</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-70">bs</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-71">bt</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-72">bu</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-73">bv</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-74">bw</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-75">bx</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-76">by</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-77">bz</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-78">ca</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-79">cb</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-80">cc</a></i></sup> <sup><i><a href="#cite_ref-Brochure8_7-81">cd</a></i></sup></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.bipm.org/utils/common/pdf/si_brochure_8_en.pdf"><i>The international system of units</i> (8ª edizione)</a>, BIPM, 2008.</span> </li> <li id="cite_note-8"><a href="#cite_ref-8"><b>^</b></a> <span class="reference-text">Una data temperatura differisce nelle due scale di 273,15 (scala Celsius = scala Kelvin + 273,15), ma la differenza di temperatura di 1 grado Celsius = 1 kelvin</span> </li> <li id="cite_note-angolo-9"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-angolo_9-0">a</a></i></sup> <sup><i><a href="#cite_ref-angolo_9-1">b</a></i></sup></span> <span class="reference-text">Inizialmente, queste unità creavano una categoria a parte chiamata "Unità supplementari". Questa categoria è stata abrogata nel <a href="/wiki/1995" title="1995">1995</a> dalla 20ª Conferenza Generale dei Pesi e delle Misure (<a href="/wiki/CGPM" class="mw-redirect" title="CGPM">CGPM</a>), e il radiante e lo steradiante sono ora considerate unità derivate.</span> </li> <li id="cite_note-10"><a href="#cite_ref-10"><b>^</b></a> <span class="reference-text">Talvolta, non correttamente, chiamata <a href="/wiki/Radioattivit%C3%A0" title="Radioattività">radioattività</a> (radioattività è il fenomeno fisico implicato, mentre attività è la grandezza fisica derivata corrispondente).</span> </li> <li id="cite_note-11"><a href="#cite_ref-11"><b>^</b></a> <span class="reference-text">Nella pratica la molarità si continua a misurare in mol/L</span> </li> <li id="cite_note-12"><a href="#cite_ref-12"><b>^</b></a> <span class="reference-text">Usato il nome non SI di <a href="/wiki/Nit_(unit%C3%A0_di_misura)" title="Nit (unità di misura)">Nit</a></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Grandezza_fisica&veaction=edit&section=6" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Grandezza_fisica&action=edit&section=6" title="Edit section's source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Grandezza_fisica_scalare" class="mw-redirect" title="Grandezza fisica scalare">Grandezza fisica scalare</a></li> <li><a href="/wiki/Grandezza_fisica_vettoriale" class="mw-redirect" title="Grandezza fisica vettoriale">Grandezza fisica vettoriale</a></li> <li><a href="/w/index.php?title=Grandezza_fisica_tensoriale&action=edit&redlink=1" class="new" title="Grandezza fisica tensoriale (la pagina non esiste)">Grandezza fisica tensoriale</a></li> <li><a href="/wiki/Grandezza_parziale_molare" title="Grandezza parziale molare">Grandezza parziale molare</a></li> <li><a href="/wiki/Grandezze_residue" class="mw-redirect" title="Grandezze residue">Grandezze residue</a></li> <li><a href="/wiki/Propriet%C3%A0_fisica" title="Proprietà fisica">Proprietà fisica</a></li> <li><a href="/wiki/Unit%C3%A0_di_misura" title="Unità di misura">Unità di misura</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Altri_progetti">Altri progetti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Grandezza_fisica&veaction=edit&section=7" title="Modifica la sezione Altri progetti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Grandezza_fisica&action=edit&section=7" title="Edit section's source code: Altri progetti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="interProject" class="toccolours" style="display: none; clear: both; margin-top: 2em"><p id="sisterProjects" style="background-color: #efefef; color: black; font-weight: bold; margin: 0"><span>Altri progetti</span></p><ul title="Collegamenti verso gli altri progetti Wikimedia"> <li class="" title=""><span class="plainlinks" title="commons:Category:Physical quantities"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Physical_quantities?uselang=it">Wikimedia Commons</a></span></li></ul></div> <ul><li><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/?uselang=it" title="Collabora a Wikimedia Commons"><img alt="Collabora a Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" decoding="async" width="18" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/27px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/36px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/?uselang=it">Wikimedia Commons</a></span> contiene immagini o altri file su <b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Physical_quantities?uselang=it">grandezza fisica</a></span></b></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Grandezza_fisica&veaction=edit&section=8" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Grandezza_fisica&action=edit&section=8" title="Edit section's source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li class="mw-empty-elt"></li> <li><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://web.archive.org/web/20181225010952/https://physics.nist.gov/Pubs/SP330/sp330.pdf"><span style="font-style:italic;">Il SI di unità di misura, Pubblicazione Speciale 330, NIST 2008</span></a> (<span style="font-weight: bolder; font-size:80%"><abbr title="documento in formato PDF">PDF</abbr></span>), su <span style="font-style:italic;">physics.nist.gov</span>. <small>URL consultato il 19 agosto 2008</small> <small>(archiviato dall'<abbr title="http://physics.nist.gov/Pubs/SP330/sp330.pdf">url originale</abbr> il 25 dicembre 2018)</small>.</cite></li> <li><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="http://physics.nist.gov/cuu/pdf/sp811.pdf"><span style="font-style:italic;">Guida per l'uso del SI di unità di misura, Pubblicazione Speciale 811, NIST 2008</span></a> (<span style="font-weight: bolder; 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