Video: Yuav ua li cas koj xam dag zog hauv physics?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nyob rau hauv ib chav kawm ib lever lub zog ntawm lub kev siv zog (Fe) multiplied los ntawm qhov deb ntawm lub kev siv zog los ntawm fulcrum (de) yog sib npaug rau lub zog ntawm qhov tsis kam (Fr) multiplied los ntawm qhov kev ncua deb ntawm qhov tsis kam ntawm fulcrum (dr). Cov kev siv zog thiab qhov tsis kam yog nyob rau sab nraud ntawm fulcrum.
Xav txog qhov no, kev siv zog hauv physics yog dab tsi?
Cov kev siv zog yog txoj haujlwm uas koj ua. Nws yog tus nqi zog uas koj siv sij hawm qhov kev ncua deb uas koj siv nws. Qhov kev tawm tsam yog qhov ua haujlwm ntawm qhov khoom koj tab tom sim txav mus.
Ib yam li ntawd, tus qauv rau kev ua haujlwm yog dab tsi? Kev ua haujlwm yog xam los ntawm kev sib npaug zog los ntawm tus nqi ntawm kev txav ntawm ib qho khoom (W = F * d). A zog ntawm 10 newtons, uas txav ib yam khoom 3 meters, ua 30 n-m ntawm kev ua haujlwm. Ib tug newton-meter yog tib yam li ib tug joule, yog li cov units rau kev ua hauj lwm yog tib yam li cov zog - joules.
Tom qab ntawd, koj yuav ua li cas suav cov kev siv dag zog uas xav tau los nqa lub nra?
Saib cov kev taw qhia ntawm kev txhawb zog elative rau thauj ua ntej summing Page 38 Pulley • To xam tus kev siv zog yuav tsum tau nqa tus thauj peb faib cov thauj los ntawm tus naj npawb ntawm cov hlua (tsis suav cov hlua uas mus rau qhov kev siv zog ).
Dab tsi yog tus qauv rau lub lever?
Nyob rau hauv ib chav kawm ib lever lub zog ntawm kev siv zog (Fe) muab faib los ntawm qhov kev ncua deb ntawm kev siv zog los ntawm fulcrum (de) yog sib npaug zog kev tiv thaiv (Fr) multiplied los ntawm qhov kev ncua deb ntawm qhov tsis kam ntawm fulcrum (dr). Kev siv zog thiab kev tawm tsam yog nyob rau sab nraud ntawm fulcrum.
Pom zoo:
Yuav ua li cas koj xam lub zog siv zog thiab nyob deb?
Txij li qhov kev siv zog yog lub zog ntawm ib cheeb tsam, yog tias koj faib lub zog ntawm qhov chaw los ntawm thaj tsam ntawm tus kheej, koj yuav suav qhov kev siv ntawm qhov deb ntawm r los ntawm qhov chaw. Hloov cov qauv no ua rau koj xam lub zog ntawm qhov chaw: P = 4πr2I
Yuav ua li cas FC xam nyob rau hauv physics?
Lub zog centripetal yog ntsuas hauv Newtons thiab xam raws li qhov hnyav (hauv kg), muab faib los ntawm tangential tshaj tawm (hauv meters ib ob) squared, muab faib los ntawm lub vojvoog (hauv meters). Qhov no txhais tau hais tias yog tangential tshaj tawm ob npaug, lub zog yuav quadruple
Yuav ua li cas koj xam ionization zog hauv kJ mol?
Yuav kom nrhiav tau qhov ib txwm hais ionization zog, tus nqi no yog muab los ntawm tus naj npawb ntawm atoms nyob rau hauv ib mole ntawm hydrogen atoms (lub Avogadro tas li) thiab ces faib los ntawm 1000 los hloov joules rau kilojoules. Qhov no piv tau zoo nrog tus nqi ib txwm hais rau hydrogen lub zog ionization ntawm 1312 kJ mol-1
Yuav ua li cas koj xam siab hauv physics?
Lub siab thiab lub zog muaj feem cuam tshuam, thiab yog li koj tuaj yeem suav ib qho yog tias koj paub lwm tus los ntawm kev siv physics equation, P = F / A. Vim hais tias lub siab yog quab yuam muab faib los ntawm cheeb tsam, nws meter-kilogram-thib ob (MKS) units yog newtons ib square meter, los yog N / m2
Yuav ua li cas koj xam lub sij hawm nyob rau hauv physics?
Koj tuaj yeem siv cov mis sib npaug d = rt uas txhais tau hais tias kev ncua deb sib npaug ntawm lub sijhawm sijhawm. Txhawm rau daws kom nrawm lossis tus nqi siv cov qauv rau kev ceev, s = d / t uas txhais tau tias ceev sib npaug sib npaug ntawm lub sijhawm. Yuav kom daws tau lub sij hawm siv cov mis rau lub sij hawm, t = d / s uas txhais tau hais tias lub sij hawm sib npaug sib npaug zos faib los ntawm ceev