Video: Dab tsi yog qhov sib npaug siv los xam tag nrho cov khoom siv hluav taws xob siv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov mis uas txuas lub zog thiab zog yog:Energy = Hwj chim x Sijhawm. Chav tsev ntawm lub zog yog joule, theunit ntawm zog yog cov watt , thiab chav tsev ntawm lub sij hawm yog qhov thib ob.
Tsis tas li ntawd, peb yuav xam lub zog li cas?
Nyob rau hauv classical mechanics, kinetic zog (KE) sib npaug rau ib nrab ntawm ib qho khoom loj (1/2 * m) muab faib los ntawm qhov nrawm squared. Piv txwv li, yog tias ib yam khoom uas hnyav 10 kg (m = 10 kg) yog txav ntawm qhov nrawm ntawm 5 meters ib ob (v = 5m / s), lub kinetic zog yog sib npaug rau 125 Joules, los yog (1/2 * 10 kg) * 5 m / s2.
Kuv yuav xam kuv daim nqi hluav taws xob li cas? Rau xam koj electric daim nqi , koj yuav tsum tofigure lub zog kev siv ntawm txhua yam khoom siv thiab cov khoom siv hluav taws xob hauv koj lub tsev.
Yuav Ua Li Cas Sau Koj Daim Nqi Hluav Taws Xob
- Muab cov cuab yeej wattage los ntawm tus naj npawb ntawm cov xuab moos theappliance yog siv ib hnub.
- Faib los ntawm 1000.
- Sib npaug ntawm koj tus nqi kWh.
Kuj Paub, koj ua li cas xam qhov kev ua tau zoo ntawm cov khoom siv?
Cov efficiency yog lub zog tso zis, muab faib los ntawm lub zog tawm tswv yim, thiab qhia raws li feem pua. Ib tug zoo meej txheej txheem yuav muaj ib tug efficiency ntawm 100%. Wtawm = tus neeg ua haujlwm lub zog tsim los ntawm kev ua haujlwm. Cov chav nyob yog Joules (J).
SI unit ntawm lub zog yog dab tsi?
Vim zog yog txhais los ntawm kev ua haujlwm, lub SIunit rau zog yog tib yam li cov chav tsev ntawm kev ua hauj lwm – lub joule (J), muaj npe nyob rau hauv Honor ntawm James Prescott Joule thiab nws thwmsim nyob rau hauv lub mechanical sib npaug ntawm tshav kub. Hauv cov ntsiab lus tseem ceeb me ntsis, 1 joule yog sib npaug rau 1 newton meter thiab, interms ntawm SI puag units.
Pom zoo:
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