Video: Ib qho piv txwv ntawm kev sib haum xeeb yooj yim yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv yooj yim harmonic motion , qhov kev tshem tawm ntawm cov khoom yog ib txwm nyob rau hauv lub opposite kev taw qhia ntawm lub restoration quab yuam. Yooj yim harmonic motion yog ib txwm oscillatory. Piv txwv yog cov tsab ntawv tsa suab ntawm tes ntawm ib lub moos, lub tsab ntawv tsa suab ntawm lub log ntawm lub tsheb, thiab lwm yam. Piv txwv yog cov tsab ntawv tsa suab ntawm lub pendulum, tsab ntawv tsa suab ntawm lub caij nplooj ntoos hlav, thiab lwm yam.
Yog li ntawd, dab tsi yog txhais los ntawm kev sib haum xeeb yooj yim muab qee yam piv txwv?
Yooj yim harmonic motion yog ib qho tsab ntawv tsa suab qhov twg ib tug restoration quab yuam siv uas yog proportional rau tus hloov chaw thiab hauv tus opposite direction ntawm qhov kev khiav tawm. Lwm tus piv txwv ntawm yooj yim harmonic motion yog lub pendulum, txawm tias tsuas yog nws swings ntawm cov ces kaum me.
yog lub pob bouncing ib qho piv txwv ntawm kev sib haum xeeb yooj yim? Cov Lus Teb. Cov yooj yim harmonic motion ua raws li qhov nkhaus sinusoidal whereas a pob pob tsis. Qhov siab tau mus los ntawm pob tom qab txhua thaws txo thiab thaum kawg tus pob los so.
Tom qab ntawd, lo lus nug yog, yuav ua li cas yooj yim harmonic motion siv nyob rau hauv lub neej txhua hnub?
Lub pendulum yog ib yooj yim piv txwv ntawm harmonic zog . Kos koj tus ntiv tes rau ntawm lub rooj tsavxwm chalk, lub suab yog ib yooj yim txawm tias irritating piv txwv ntawm harmonic zog . Lwm qhov piv txwv yog koj pob ntseg nruas nws tus kheej, Lub suab tsis txav mus rau saum huab cua. Qhov quab yuam F no ua rau pob txha pob txha vibrate.
Qhov yooj yim harmonic motion equation yog dab tsi?
Cov kev sib npaug rau yooj yim harmonic motion muab rau xam tej parameter ntawm lub tsab ntawv tsa suab yog lwm tus paub. Yog tias lub sijhawm yog T = s. Tom qab ntawd qhov zaus yog f = Hz thiab angular zaus = rad / s. Cov tsab ntawv tsa suab yog piav los ntawm Displacement = Amplitude x sin (angular zaus x time)
Pom zoo:
Dab tsi yog lub tswv yim ntawm kev txhawb nqa ntawm kev sib cais ntawm kev sib deev?
Kev txhawb zog yog cov txheej txheem los ntawm kev xaiv ntuj tsim kom muaj kev sib cais ntawm kev sib deev. Kev txhawb zog tuaj yeem tshwm sim raws li hauv qab no: Thaum ob pawg neeg uas tau khaws cia sib nrug, rov qab los rau hauv kev sib cuag, qhov kev sib cais ntawm cov menyuam yaus yuav ua tiav lossis tsis tiav. Yog tias nws ua tiav, speciation tau tshwm sim
Ib qho piv txwv ntawm kev tsis sib haum xeeb yog dab tsi?
Piv txwv li, kev sib cuag ntawm 400-million-xyoo-laus sandstone uas tau tso los ntawm lub hiav txwv nce siab ntawm cov huab cua puag ncig uas muaj 600 lab xyoo yog qhov tsis sib haum xeeb uas sawv cev rau lub sijhawm hiatus ntawm 200 lab xyoo
Dab tsi yog ib qho piv txwv ntawm cov khoom sib txuas ntawm kev sib npaug?
Kev rho tawm (Tsis yog Commutative) Tsis tas li ntawd, kev faib, kev sib xyaw ntawm cov dej num thiab cov lej sib npaug yog ob qho piv txwv zoo uas tsis yog kev sib txuas
Qhov twg yog ib qho piv txwv ntawm ib qho kev xeeb tub?
Hauv tib neeg, qhov muag xim yog ib qho piv txwv ntawm tus cwj pwm qub qub: ib tus neeg yuav tau txais 'xim av-qhov muag zoo' los ntawm ib tus niam txiv. Cov txiaj ntsig tau txais txiaj ntsig yog tswj hwm los ntawm cov noob thiab cov txheej txheem tag nrho ntawm cov noob hauv ib lub cev lub genome yog hu ua nws cov genotype
Vim li cas peb kawm txog kev sib haum xeeb yooj yim?
Tej yam yooj yim harmonic motion yog ib yam tseem ceeb heev ntawm lub sij hawm oscillation qhov twg acceleration (α) yog proportional rau lub displacement (x) los ntawm equilibrium, nyob rau hauv cov kev taw qhia ntawm lub equilibrium txoj hauj lwm