K thiab U yog dab tsi hauv physics?
K thiab U yog dab tsi hauv physics?

Video: K thiab U yog dab tsi hauv physics?

Video: K thiab U yog dab tsi hauv physics?
Video: yog hmoov dab tsi tub huas xyooj 2024, Kaum ib hlis
Anonim

Mechanical zog tsis sib npaug zos. U yog muaj zog thiab K yog kinetic zog.

Hauv qhov no, K txhais li cas hauv physics?

K (upper case) hauv physics feem ntau yog hais txog degrees Kelvin (piv txwv li kub) Ces k raws li nws tshwm sim (tus lej qis) hauv SI series ntawm cov ntawv rau ua ntej ntawm lub zog ntawm 10. m (piv txwv li tus lej qis) yog SI tus lej rau 1 txhiab (10^-3) (milli) k (piv txwv li tus lej qis) yog SI tus lej rau 1 txhiab (10^3) (kilo)

Ib tug kuj yuav nug, Delta K physics yog dab tsi? E = U + K = tas li. Kev ua haujlwm-zog theorem tau tham hauv Tshooj 7 hais txog qhov ua haujlwm W rau kev hloov pauv ntawm lub zog kinetic ntawm lub cev. W = [ Delta ] K . Kev hloov pauv ntawm lub zog muaj peev xwm ntawm lub cev tam sim no tuaj yeem cuam tshuam nrog cov haujlwm ua haujlwm ntawm lub system. [ Delta ]U = - [ Delta ] K = - W.

Hauv qhov no, U sawv cev rau dab tsi hauv physics?

- Hauv thermodynamics, U feem ntau yog siv los ua lub cim rau lub zog sab hauv. Tshwj xeeb, nws tau siv los ua lub cim rau lub zog gravitational thiab elastic muaj peev xwm zog. U . Greek tsab ntawv thiab lub npe: ua U upsilon. u = pib tshaj tawm.

U yog dab tsi hauv lub zog muaj peev xwm?

Muaj peev xwm zog , hais nyob rau hauv science li U , yog zog uas yog khaws cia nyob rau hauv ib yam khoom, tsis nyob rau hauv motion tab sis muaj peev xwm ua active. Thaum ib qho khoom txav mus los, muaj peev xwm zog hloov mus rau kinetic zog , uas yog zog ntawm kev tawm suab.

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