Video: Puas yog kev ua haujlwm sib npaug rau tag nrho lub zog?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub hauv paus ntsiab lus ntawm ua haujlwm thiab kinetic zog (tseem hu ua ua haujlwm - zog theorem) hais tias ua haujlwm ua los ntawm cov sum ntawm tag nrho cov rog ua rau ntawm aparticle sib npaug qhov kev hloov hauv kinetic zog ntawm cov particle.
Xav txog qhov no, puas yog kev ua haujlwm sib npaug ntawm lub zog?
Kev hloov hauv kinetic zog ntawm ib yam khoom yog sib npaug mus net ua haujlwm ua rau ntawm qhov khoom. Qhov tseeb no hu ua tus Ua haujlwm - Zog Lub hauv paus ntsiab lus thiab feem ntau yog cov cuab yeej muaj txiaj ntsig zoo hauv kev daws teeb meem mechanics.
Ib yam li ntawd, ua haujlwm li cas ntawm lub zog? Lub hauv paus ntsiab lus ntawm ua haujlwm thiab kinetic zog (tseem hu ua ua haujlwm – zog hauv paus ntsiab lus) hais tias cov ua haujlwm los ntawm txhua lub zog ua haujlwm ntawm ib qho particle (the ua haujlwm ntawm lub resultant quab yuam) sib npaug ntawm kev hloov hauv thekinetic zog ntawm particle.
Ua li no, kev ua haujlwm cuam tshuam li cas rau lub zog?
Ua haujlwm = quab yuam lub sij hawm nrug. Thaum twg ua haujlwm ua tiav, zog yog kis ntawm systems, los yog transformed los ntawm ib hom ntawm zog rau hauv lwm hom. Zog shares tib units ntawm kev ntsuas raws li ua haujlwm . SI unit of ua haujlwm los yog zog yog joule.
Lub tshuab hluav taws xob puas sib npaug ua haujlwm?
Mechanical zog piav txog lub peev xwm ntawm anobject ua ua haujlwm . Cov mechanical zog ntawm ib yam khoom sib npaug rau qhov suav ntawm cov peev xwm ntxiv rau lub zog kinetic, piv txwv li E = PE + KE, thiab yog qhov ntsuas ncaj qha ntawm tag nrho zog muaj rau ib yam khoom raws li nws ceev thiab position hloov ntawm ib tug taw tes rau lwm.
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