Puas yog kev siv zog proportional rau lub zog?
Puas yog kev siv zog proportional rau lub zog?

Video: Puas yog kev siv zog proportional rau lub zog?

Video: Puas yog kev siv zog proportional rau lub zog?
Video: Puas Yog Kuv Tshuav Kev Npam - Leela Xiong 2024, Kaum ib hlis
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Qhov tseeb, ib tug yoj zog yog ncaj qha proportional rau nws amplitude squared vim W ∝ Fx = kx2. Lub ntsiab txhais ntawm kev siv zog yog siv tau rau ib qho twg zog hauv kev thauj mus los, suav nrog cov uas nqa los ntawm nthwv dej. SI unit for kev siv zog yog watts ib square meter (W / m2).

Tsis tas li ntawd, kev siv zog cuam tshuam li cas rau lub zog?

Kev siv zog tuaj yeem pom los ntawm kev noj cov zog ceev ( zog ib chav tsev ntim) ntawm ib qho chaw hauv qhov chaw thiab muab nws sib npaug los ntawm qhov nrawm uas qhov zog yog tsiv. Lub resulting vector muaj cov units ntawm zog faib los ntawm cheeb tsam (piv txwv li, nto zog ceev).

Qhov thib ob, qhov kev siv ntawm lub teeb proportional yog dab tsi? los piav txog qhov nruab nrab ntawm kev nthuav tawm. Dab tsi yog tib yam rau txhua hom nthwv dej, lub ntsiab lus tseem ceeb ntawm no, yog qhov kev siv zog yog proportional rau lub square ntawm lub amplitude.

Ib yam li ntawd, lub zog puas yog kev siv zog?

Kev siv zog yog qhov kom muaj nuj nqis zog lub nthwv dej conveys ib chav tsev lub sij hawm hla ib qhov chaw ntawm chav tsev thiab nws kuj yog sib npaug rau lub zog density multiplied by the wave speed. Nws yog feem ntau ntsuas nrog units ntawm watts ib square meter. Kev siv zog yuav nyob ntawm lub zog thiab amplitude ntawm nthwv dej.

Vim li cas qhov kev siv zog proportional rau amplitude squared?

Lub zog ntawm nthwv dej yog proportional mus rau square ntawm nws amplitude . Yog li ntawd lub kev siv zog ntawm ib nthwv dej kuj yog proportional mus rau square ntawm nws amplitude . Qhov no txhais tau tias yog Kev siv zog poob tawm ntawm tus nqi ntawm 1 / r2, zog amplitude poob tawm ntawm tus nqi ntawm 1 / r.

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