Video: Kev sib raug zoo ntawm lub zog thiab kev nrawm yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Newton txoj cai thib ob ntawm tsab ntawv tsa suab piav txog qhov kev sib raug zoo ntawm lub zog thiab acceleration . Lawv ncaj qha proportional. Yog koj nce lub zog siv rau ib yam khoom, lub kev ceev ntawm qhov khoom ntawd nce los ntawm tib yam. Hauv luv luv, zog sib npaug lub sij hawm loj kev ceev.
Tsis tas li lo lus nug yog, kev sib raug zoo ntawm kev quab yuam thiab kev nrawm nrawm yog dab tsi?
Txoj Cai Acceleration - Cov kev ceev ntawm ib yam khoom yog ncaj qha proportional rau lub zog ua rau nws thiab inversely proportional rau lub pawg ntawm qhov khoom.
Tsis tas li ntawd, lub zog cuam tshuam li cas rau huab hwm coj thiab acceleration? quab yuam yog ntsig txog rau kev ceev los ntawm qhov sib npaug F = ma. "F" sawv cev rau zog , "m" stands rau pawg thiab "a" sawv rau kev ceev . Yog ib yam khoom muaj pawg , thiab yog ceev los ntawm qhov chaw, ces tus khoom yuav exert a zog . Lub hauv paus ntsiab lus no tau piav qhia los ntawm Newton txoj cai thib ob ntawm kev txav.
Tsis tas li ntawd, qhov kev sib raug zoo ntawm qhov hnyav thiab acceleration yog dab tsi?
A: Cov kev sib raug zoo ntawm huab hwm coj thiab acceleration tau piav nyob rau hauv Newton's Second Law of Motion. Nws Txoj Cai Thib Ob hais tias ntau dua pawg ib yam khoom muaj, ntau zog yog tsim nyog rau nws kom nrawm.
Dab tsi yog peb cov qauv uas piav qhia txog kev sib raug zoo ntawm lub zog loj thiab kev nrawm?
Nws yog ib nqe lus luv luv ntawm Isaac Newton Txoj Cai Thib Ob ntawm Motion, tuav ob qho tib si proportions thiab vectors ntawm Txoj Cai thib ob. Nws txhais tau tias: Net zog ntawm ib yam khoom sib npaug rau tus loj ntawm cov khoom multiplied los ntawm cov acceleration ntawm qhov khoom. quab yuam sib npaug pawg sij hawm kev ceev.
Pom zoo:
Kev sib raug zoo ntawm qhov hnyav thiab kev nrawm yog dab tsi?
Qhov hnyav yog qhov ntsuas ntawm lub zog ntawm lub ntiajteb txawj nqus ua rau ntawm ib qho khoom. Raws li Newton txoj cai ntawm kev txav, quab yuam yog ncaj qha proportional rau ob qho tib si loj thiab acceleration, thiab qhov sib npaug rau lub zog yog F = m * a, qhov twg m = loj thiab a = acceleration
Dab tsi yog qhov zoo sib xws thiab qhov sib txawv ntawm qhov nrawm thiab nrawm?
Kev sib piv daim duab piv rau Kev Sib Piv Ceev Ceev Tus Nqi Hloov ntawm qhov kev ncua deb Hloov pauv hloov thaum lub cev rov qab mus rau nws qhov chaw pib Yuav tsis xoom Yuav yog xoom Tsiv khoom Ceev ntawm cov khoom txav tsis tuaj yeem tsis zoo. Kev nrawm ntawm cov khoom txav tuaj yeem yog qhov zoo, tsis zoo lossis xoom
Nws txhais li cas thaum kev sib raug zoo ntawm kev sib raug zoo ua kev cuam tshuam?
Kev sib raug zoo ntawm ob tus neeg uas txhua tus neeg nyob ntawm thiab tau txais kev txhawb zog, txawm tias muaj txiaj ntsig lossis kev puas tsuaj, los ntawm lwm tus. ib qho kev sib cuam tshuam lossis kev sib raug zoo ntawm ob tus neeg, pab pawg, thiab lwm yam
Qhov kev sib raug zoo ntawm lub siab thiab lub zog yog dab tsi?
Zoo Siab txhais tau tias yog 'Force per unit area'-- Pressure = force/area. Yog li, pom tseeb, Force thiab Pressure muaj feem xyuam nrog, piv txwv li, Force yog ncaj qha proportional to Pressure, uas txhais tau hais tias, lub zog ntau dua koj siv rau ntawm thaj chaw ruaj khov, qhov siab dua koj tsim
Dab tsi yog kev sib raug zoo ntawm gravitational muaj peev xwm zog thiab kinetic zog?
Thaum ib yam khoom ntog, nws lub peev xwm gravitational hloov mus rau kinetic zog. Koj tuaj yeem siv qhov kev sib raug zoo no los xam qhov ceev ntawm qhov khoom qhovntsej thiaj tsis mob. Gravitational muaj peev xwm zog rau ib pawg m ntawm qhov siab h nyob ze ntawm lub ntiaj teb yog mgh ntau tshaj li lub zog muaj peev xwm yuav nyob rau qhov siab 0