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Yuav ua li cas koj muab tau elastic muaj peev xwm zog?
Yuav ua li cas koj muab tau elastic muaj peev xwm zog?

Video: Yuav ua li cas koj muab tau elastic muaj peev xwm zog?

Video: Yuav ua li cas koj muab tau elastic muaj peev xwm zog?
Video: Tsis Muaj Peev Xwm Yuav Ua Li Cas 2024, Kaum ib hlis
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Elastic muaj peev xwm zog yog cov muaj peev xwm zog khaws cia los ntawm stretching los yog compressing ib elastic khoom los ntawm ib tug sab nraud quab yuam xws li stretching ntawm a caij nplooj ntoos hlav . Nws yog sib npaug rau cov hauj lwm ua kom ncab tus caij nplooj ntoos hlav uas nyob ntawm qhov caij nplooj ntoos hlav tas li k thiab qhov kev ncua deb stretched.

Ib yam li ntawd, tib neeg nug, dab tsi yog lub mis rau elastic zog?

Elastic muaj peev xwm zog yog sib npaug rau lub zog lub sij hawm ntawm qhov kev ncua deb ntawm kev txav mus los. Elastic muaj peev xwm zog = quab yuam x deb ntawm kev xaav. Vim lub zog yog = caij nplooj ntoos hlav tas li x hloov chaw, ces lub Elastic muaj peev xwm zog = caij nplooj ntoos hlav tas li x displacement squared.

Tsis tas li ntawd, koj yuav nrhiav tau lub zog elastic zog los ntawm daim duab li cas? Lub caij nplooj ntoos hlav tsis tu ncua yog qhov ntsuas qhov tawv ntawm lub caij nplooj ntoos hlav. Hooke txoj cai muab peb lub zog peb xav tau nrhiav elastic muaj peev xwm zog . Saib ntawm a daim duab ntawm kev quab yuam tawm tsam, peb tuaj yeem nrhiav tias cov qauv rau elastic muaj peev xwm zog PE = 1/2(kx^2).

Tib neeg kuj nug, cov mis rau lub zog muaj peev xwm muab tau li cas?

Rau lub gravitational quab yuam qauv yog P. E. = mgh, qhov twg m yog qhov hnyav hauv kilograms, g yog acceleration vim lub ntiajteb txawj nqus (9.8 m / s2 nyob rau saum npoo ntawm lub ntiaj teb) thiab h yog qhov siab hauv meters. Pom tias gravitational muaj peev xwm zog muaj tib units li kinetic zog ,kg m2 /s2.

Yuav ua li cas yog ib co piv txwv ntawm elastic muaj peev xwm zog?

Ntau yam khoom siv tau tsim tshwj xeeb los khaws lub zog muaj peev xwm, piv txwv li:

  • Lub caij nplooj ntoos hlav caij nplooj ntoos hlav ntawm lub voj voog.
  • Ib tug archer stretched hneev.
  • Ib tug bent diving board, ua ntej ib tug divers dhia.
  • Cov roj hmab twisted uas ua rau lub dav hlau ua si.
  • Ib lub pob bouncy, compressed thaum lub sij hawm nws thaws tawm ntawm phab ntsa cib.

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