Video: Puas yog qhov hnyav lossis qhov hnyav?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov pawg ntawm ib yam khoom yog ib qho kev ntsuas ntawm cov khoom inertial khoom, los yog tus nqi ntawm cov teeb meem nws muaj. Cov hnyav ntawm ib yam khoom yog ib qho kev ntsuas ntawm lub zog tawm ntawm qhov khoom los ntawm lub ntiajteb txawj nqus, lossis lub zog xav tau los txhawb nws. Lub rub ntawm lub ntiajteb txawj nqus muab ib yam khoom ib tug downward acceleration ntawm txog 9.8 m / s2.
Tsis tas li ntawd, puas yog qhov loj me?
Pawg yog qhov pib "yuav ua li cas ntau npaum li cas ib yam khoom muaj". Loj feem ntau yog ib lo lus uas hais txog qhov ntev, thaj tsam lossis ntim (piv txwv li qhov khoom loj npaum li cas). Ob lub spheres ntawm tib yam qhov loj tuaj yeem muaj qhov sib txawv heev pawg.
Ib yam li ntawd, KG yog qhov hnyav lossis hnyav? Koj yuav tau yooj yim xam ib yam khoom hnyav los ntawm nws pawg , lub pawg los ntawm nws hnyav . Nyob rau hauv physics lub standard unit ntawm hnyav yog Newton, thiab tus qauv chav tsev ntawm pawg yog cov kilogram . Hauv ntiaj teb, a 1 kg khoom hnyav 9.8 N, thiaj li nrhiav tau hnyav ntawm ib yam khoom hauv N tsuas yog muab cov pawg ua 9,8n.
Yog li ntawd, puas yog qhov hnyav tib yam li qhov hnyav?
Nyob rau hauv lub cev sciences, pawg thiab hnyav txawv. Cov pawg ntawm ib yam khoom yog ib qho kev ntsuas ntawm tus nqi ntawm cov khoom nyob rau hauv cov khoom. Qhov hnyav yog ib qho kev ntsuas ntawm lub zog ntawm qhov khoom tshwm sim los ntawm qhov chaw gravitational. Hauv lwm lo lus, hnyav yog qhov nyuaj npaum li cas rub rau ntawm ib qho khoom.
Dab tsi yog units rau pawg?
Units of mass Tus qauv International System of Units (SI) unit of mass yog tus kilogram ( kg ). Cov kilogram yog 1000 grams (g), thawj txhais tau tias nyob rau hauv 1795 raws li ib tug cubic decimeter ntawm dej ntawm lub melting point ntawm dej khov.
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