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[o]" accesskey="o" class=""><span>Skrá inn</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Frekari valkostir" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Persónuleg verkfæri" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-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-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Persónuleg verkfæri</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Notandavalmynd" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_is.wikipedia.org&uselang=is"><span>Fjárframlög</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Kerfiss%C3%AD%C3%B0a:B%C3%BAa_til_a%C3%B0gang&returnto=%C3%9Eyngdarhr%C3%B6%C3%B0un" title="Þú ert hvattur/hvött til að búa til aðgang og skrá þig inn; en það er ekki skylda"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Búa til aðgang</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Kerfiss%C3%AD%C3%B0a:Innskr%C3%A1&returnto=%C3%9Eyngdarhr%C3%B6%C3%B0un" title="Þú ert hvattur/hvött til að innskrá þig, það er hinsvegar ekki skylda. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Skrá inn</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Síður fyrir útskráða notendur <a href="/wiki/Hj%C3%A1lp:Introduction" aria-label="Læra meira um breytingar"><span>Læra meira</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Kerfiss%C3%AD%C3%B0a:Framl%C3%B6g_m%C3%ADn" title="Listi yfir breytingar frá þessu IP-staðfangi [y]" accesskey="y"><span>Framlög</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Kerfiss%C3%AD%C3%B0a:Spjallas%C3%AD%C3%B0a_m%C3%ADn" title="Spjall um breytingar frá þessu IP-staðfangi [n]" accesskey="n"><span>Spjall</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Vefsíða"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Efni" 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">Efni</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">færa í hliðarstiku</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">fela</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">Byrjun</div> </a> </li> <li id="toc-Tengt_efni:" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tengt_efni:"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Tengt efni:</span> </div> </a> <ul id="toc-Tengt_efni:-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="Efni" 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="Sýna/fela efnisyfirlit" > <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">Sýna/fela efnisyfirlit</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">Þyngdarhröðun</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="Fara á grein á öðru tungumáli. Til staðar á 34 tungumálum" > <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-34" 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">34 tungumál</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%82%D9%88%D8%A9_%D8%A7%D9%84%D8%AA%D8%B3%D8%A7%D8%B1%D8%B9" title="قوة التسارع – arabíska" lang="ar" hreflang="ar" data-title="قوة التسارع" data-language-autonym="العربية" data-language-local-name="arabíska" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/G_q%C3%BCvv%C9%99si" title="G qüvvəsi – aserska" lang="az" hreflang="az" data-title="G qüvvəsi" data-language-autonym="Azərbaycanca" data-language-local-name="aserska" 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%9F%D0%B5%D1%80%D0%B0%D0%B3%D1%80%D1%83%D0%B7%D0%BA%D0%B0_(%D0%B0%D0%B2%D1%96%D1%8F%D1%86%D1%8B%D1%8F)" title="Перагрузка (авіяцыя) – hvítrússneska" lang="be" hreflang="be" data-title="Перагрузка (авіяцыя)" data-language-autonym="Беларуская" data-language-local-name="hvítrússneska" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/For%C3%A7a_g" title="Força g – katalónska" lang="ca" hreflang="ca" data-title="Força g" data-language-autonym="Català" data-language-local-name="katalónska" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%DA%BE%DB%8E%D8%B2%DB%8C_%D8%AC%DB%8C" title="ھێزی جی – miðkúrdíska" lang="ckb" hreflang="ckb" data-title="ھێزی جی" data-language-autonym="کوردی" data-language-local-name="miðkúrdíska" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/G-kraft" title="G-kraft – danska" lang="da" hreflang="da" data-title="G-kraft" data-language-autonym="Dansk" data-language-local-name="danska" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/G-Kraft" title="G-Kraft – þýska" lang="de" hreflang="de" data-title="G-Kraft" data-language-autonym="Deutsch" data-language-local-name="þýska" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/G-force" title="G-force – enska" lang="en" hreflang="en" data-title="G-force" data-language-autonym="English" data-language-local-name="enska" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Fuerza_g" title="Fuerza g – spænska" lang="es" hreflang="es" data-title="Fuerza g" data-language-autonym="Español" data-language-local-name="spænska" 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/%C3%9Clekoormus_(f%C3%BC%C3%BCsika)" title="Ülekoormus (füüsika) – eistneska" lang="et" hreflang="et" data-title="Ülekoormus (füüsika)" data-language-autonym="Eesti" data-language-local-name="eistneska" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%86%DB%8C%D8%B1%D9%88%DB%8C_%DA%AF%D8%B1%D8%A7%D9%86%D8%B4" title="نیروی گرانش – persneska" lang="fa" hreflang="fa" data-title="نیروی گرانش" data-language-autonym="فارسی" data-language-local-name="persneska" 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/G-voima" title="G-voima – finnska" lang="fi" hreflang="fi" data-title="G-voima" data-language-autonym="Suomi" data-language-local-name="finnska" 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/G_(acc%C3%A9l%C3%A9ration)" title="G (accélération) – franska" lang="fr" hreflang="fr" data-title="G (accélération)" data-language-autonym="Français" data-language-local-name="franska" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-he badge-Q70894304 mw-list-item" title=""><a href="https://he.wikipedia.org/wiki/%D7%9B%D7%95%D7%97_%D7%92%27%D7%99" title="כוח ג'י – hebreska" lang="he" hreflang="he" data-title="כוח ג'י" data-language-autonym="עברית" data-language-local-name="hebreska" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Gaya_g" title="Gaya g – indónesíska" lang="id" hreflang="id" data-title="Gaya g" data-language-autonym="Bahasa Indonesia" data-language-local-name="indónesíska" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%90%D1%83%D1%8B%D1%80%D0%BB%D1%8B%D2%9B_%D0%BA%D2%AF%D1%88%D1%96" title="Ауырлық күші – kasakska" lang="kk" hreflang="kk" data-title="Ауырлық күші" data-language-autonym="Қазақша" data-language-local-name="kasakska" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Daya_G" title="Daya G – malaíska" lang="ms" hreflang="ms" data-title="Daya G" data-language-autonym="Bahasa Melayu" data-language-local-name="malaíska" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/G-kracht" title="G-kracht – hollenska" lang="nl" hreflang="nl" data-title="G-kracht" data-language-autonym="Nederlands" data-language-local-name="hollenska" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/G-kraft" title="G-kraft – norskt bókmál" lang="nb" hreflang="nb" data-title="G-kraft" data-language-autonym="Norsk bokmål" data-language-local-name="norskt bókmál" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/G-%E0%A8%AB%E0%A9%8B%E0%A8%B0%E0%A8%B8" title="G-ਫੋਰਸ – púnjabí" lang="pa" hreflang="pa" data-title="G-ਫੋਰਸ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="púnjabí" 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/Przeci%C4%85%C5%BCenie" title="Przeciążenie – pólska" lang="pl" hreflang="pl" data-title="Przeciążenie" data-language-autonym="Polski" data-language-local-name="pólska" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%AC%DB%8C_%D9%81%D9%88%D8%B1%D8%B3" title="جی فورس – Western Punjabi" lang="pnb" hreflang="pnb" data-title="جی فورس" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/G_(f%C3%ADsica)" title="G (física) – portúgalska" lang="pt" hreflang="pt" data-title="G (física)" data-language-autonym="Português" data-language-local-name="portúgalska" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9F%D0%B5%D1%80%D0%B5%D0%B3%D1%80%D1%83%D0%B7%D0%BA%D0%B0_(%D0%BE%D1%82%D0%BD%D0%BE%D1%88%D0%B5%D0%BD%D0%B8%D0%B5_%D1%81%D0%B8%D0%BB)" title="Перегрузка (отношение сил) – rússneska" lang="ru" hreflang="ru" data-title="Перегрузка (отношение сил)" data-language-autonym="Русский" data-language-local-name="rússneska" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/G-Force" title="G-Force – Simple English" lang="en-simple" hreflang="en-simple" data-title="G-Force" 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/Pre%C5%A5a%C5%BEenie_(tia%C5%BEov%C3%A9_zr%C3%BDchlenie)" title="Preťaženie (tiažové zrýchlenie) – slóvakíska" lang="sk" hreflang="sk" data-title="Preťaženie (tiažové zrýchlenie)" data-language-autonym="Slovenčina" data-language-local-name="slóvakíska" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A3%D0%B1%D1%80%D0%B7%D0%B0%D1%9A%D0%B5_(%D0%B2%D0%B0%D0%B7%D0%B4%D1%83%D1%85%D0%BE%D0%BF%D0%BB%D0%BE%D0%B2%D0%BD%D0%B0_%D1%84%D0%B8%D0%B7%D0%B8%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%98%D0%B0)" title="Убрзање (ваздухопловна физиологија) – serbneska" lang="sr" hreflang="sr" data-title="Убрзање (ваздухопловна физиологија)" data-language-autonym="Српски / srpski" data-language-local-name="serbneska" 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/G-krafter" title="G-krafter – sænska" lang="sv" hreflang="sv" data-title="G-krafter" data-language-autonym="Svenska" data-language-local-name="sænska" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/G_kuvveti" title="G kuvveti – tyrkneska" lang="tr" hreflang="tr" data-title="G kuvveti" data-language-autonym="Türkçe" data-language-local-name="tyrkneska" 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%9F%D0%B5%D1%80%D0%B5%D0%B2%D0%B0%D0%BD%D1%82%D0%B0%D0%B6%D0%B5%D0%BD%D0%BD%D1%8F_(%D0%B0%D0%B2%D1%96%D0%B0%D1%86%D1%96%D1%8F)" title="Перевантаження (авіація) – úkraínska" lang="uk" hreflang="uk" data-title="Перевантаження (авіація)" data-language-autonym="Українська" data-language-local-name="úkraínska" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%AC%DB%8C_%D9%81%D9%88%D8%B1%D8%B3" title="جی فورس – úrdú" lang="ur" hreflang="ur" data-title="جی فورس" data-language-autonym="اردو" data-language-local-name="úrdú" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/L%E1%BB%B1c_G" title="Lực G – víetnamska" lang="vi" hreflang="vi" data-title="Lực G" data-language-autonym="Tiếng Việt" data-language-local-name="víetnamska" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/G%E5%8A%9B" title="G力 – kínverska" lang="zh" hreflang="zh" data-title="G力" data-language-autonym="中文" data-language-local-name="kínverska" 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/G_%E5%8A%9B" title="G 力 – kantónska" lang="yue" hreflang="yue" data-title="G 力" data-language-autonym="粵語" data-language-local-name="kantónska" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q284602#sitelinks-wikipedia" title="Breyta tungumálatenglum" class="wbc-editpage">Breyta tenglum</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Nafnrými"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/%C3%9Eyngdarhr%C3%B6%C3%B0un" title="Sýna efnissíðuna [c]" accesskey="c"><span>Síða</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Spjall:%C3%9Eyngdarhr%C3%B6%C3%B0un&action=edit&redlink=1" rel="discussion" class="new" title="Spallsíða þessarar síðu (síða er ekki enn til) [t]" accesskey="t"><span>Spjall</span></a></li> </ul> </div> </div> <div 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id="siteSub" class="noprint">Úr Wikipediu, frjálsa alfræðiritinu</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="is" dir="ltr"><p><b>Þyngdarhröðun</b> er <a href="/wiki/Hr%C3%B6%C3%B0un" title="Hröðun">hröðun</a> sem frjáls hlutur verður fyrir í <a href="/wiki/%C3%9Eyngdarsvi%C3%B0" title="Þyngdarsvið">þyngdarsviði</a> annars mun stærri hlutar, þegar þeir eru í <a href="/w/index.php?title=T%C3%B3mar%C3%BAmi&action=edit&redlink=1" class="new" title="Tómarúmi (síða er ekki enn til)">tómarúmi</a>. Ef hlutirnir eru hins vegar kyrrir miðað við hvorn annan er frekar talað um <a href="/wiki/%C3%9Eyngdarkraftur" class="mw-redirect" title="Þyngdarkraftur">þyngdarkraftinn</a> á milli þeirra. <a href="/wiki/%C3%9Eyngd" title="Þyngd">Þyngd</a> hlutar er mælikvarði á þyngdarhröðun/-kraft. </p><p>Þyngdarlögmál <a href="/wiki/Isaac_Newton" title="Isaac Newton">Newtons</a> gefur þyngdarkraft <i>F</i> milli tveggja hluta með massa <i>m</i><sub>1</sub> og <i>m</i><sub>2</sub> og í fjarlægð <i>r</i> frá hvor öðrum sem </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 F=G{\frac {m_{1}m_{2}}{r^{2}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>F</mi> <mo>=</mo> <mi>G</mi> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <msub> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <msub> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mrow> <msup> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle F=G{\frac {m_{1}m_{2}}{r^{2}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/3156e20e0c0ed9373b47b53e48663d2c6f014e46" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.171ex; width:13.691ex; height:5.009ex;" alt="{\displaystyle F=G{\frac {m_{1}m_{2}}{r^{2}}}}"></span></dd></dl> <p>þar sem <i>G</i> er <b>þyngdarfastinn</b> og hefur nálgunargildið <i>G</i> = 6,67 × 10<sup>−11</sup> N m² kg<sup>-2</sup>. Þegar annar massinn er lítill í samanburði við hinn og nálægt yfirborði massameiri hlutarins þá er gerð sú nálgun að öll breyting á <i>r</i> er hlutfallslega lítil sem réttlætir að þessi jafna er oft skrifuð sem </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 F=gm_{1}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>F</mi> <mo>=</mo> <mi>g</mi> <msub> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle F=gm_{1}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/61111e0f86040592a1f91cee0970aea168fbcee7" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:9.05ex; height:2.509ex;" alt="{\displaystyle F=gm_{1}}"></span></dd></dl> <p>þar sem <i>g</i> er kallað þyngdarhröðun hlutarins með massa <i>m</i><sub>1</sub> í þyngdarmætti massans <i>m</i><sub>2</sub> og hefur gildið </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 g=G{\frac {m_{2}}{r^{2}}}.}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>g</mi> <mo>=</mo> <mi>G</mi> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msub> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <msup> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mfrac> </mrow> <mo>.</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle g=G{\frac {m_{2}}{r^{2}}}.}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/485bbeb8ded31c1ac5946d17db1b584e76a02265" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.171ex; width:10.619ex; height:5.009ex;" alt="{\displaystyle g=G{\frac {m_{2}}{r^{2}}}.}"></span></dd></dl> <p>Á <a href="/wiki/J%C3%B6r%C3%B0in" title="Jörðin">jörðinni</a> hefur <i>g</i> meðalgildið 9,82 m/s². </p> <div class="mw-heading mw-heading2"><h2 id="Tengt_efni:">Tengt efni:</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%9Eyngdarhr%C3%B6%C3%B0un&veaction=edit&section=1" title="Breyti hluta: Tengt efni:" class="mw-editsection-visualeditor"><span>breyta</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%9Eyngdarhr%C3%B6%C3%B0un&action=edit&section=1" title="Edit section's source code: Tengt efni:"><span>breyta frumkóða</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Klass%C3%ADsk_aflfr%C3%A6%C3%B0i" class="mw-redirect" title="Klassísk aflfræði">Klassísk aflfræði</a></li> <li><a href="/wiki/Afst%C3%A6%C3%B0iskenningin" title="Afstæðiskenningin">Afstæðiskenningin</a></li> <li><a href="/wiki/%C3%9Eyngd" title="Þyngd">Þyngd</a></li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Sótt frá „<a dir="ltr" href="https://is.wikipedia.org/w/index.php?title=Þyngdarhröðun&oldid=1617270">https://is.wikipedia.org/w/index.php?title=Þyngdarhröðun&oldid=1617270</a>“</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Kerfiss%C3%AD%C3%B0a:Flokkar" title="Kerfissíða:Flokkar">Flokkur</a>: <ul><li><a href="/wiki/Flokkur:E%C3%B0lisfr%C3%A6%C3%B0i" title="Flokkur:Eðlisfræði">Eðlisfræði</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Þessari síðu var síðast breytt 7. desember 2018, klukkan 17:24.</li> <li id="footer-info-copyright">Textinn er gefinn út samkvæmt <a href="/wiki/Wikipedia:H%C3%B6fundar%C3%A9ttur" title="Wikipedia:Höfundaréttur">Creative Commons Tilvísun-DeilaEins leyfi</a>. 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