Video: Dab tsi yog qhov txawv ntawm classical mechanics thiab quantum mechanics?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv luv luv, lub ntsiab qhov sib txawv ntawm quantum thiab classical physics yog cov qhov sib txawv ntawm ib tug staircase. Hauv classical mechanics , cov xwm txheej (feem ntau) yog tas mus li, uas yog hais tias lawv tsiv mus nyob rau hauv tus qauv, kev txiav txim thiab predicable. Projectile motion yog ib qho piv txwv zoo ntawm classical mechanics.
Yog li ntawd, qhov txawv ntawm quantum physics thiab quantum mechanics yog dab tsi?
Niaj hnub no tsis muaj txawv . Cov quantum hauv quantum physics los ntawm quantum mechanics seb nws puas yog relativistic quantum physics los yog nonrelativistic quantum physics . Cov qhov sib txawv ntawm ob qho tib si yog keeb kwm txaus siab. Ua ntej kev xav ntawm quantum physics tau thov los ntawm Niels Bohr rau hydrogenatom.
Ib yam li ntawd, dab tsi yog classical thiab quantum physics? Classical physics yog vim li cas; ua tiav kev paub txog yav dhau los tso cai suav txog yav tom ntej. Cov khoom hauv quantumphysics tsis yog ib qho me me los yog nthwv dej; lawv yog ib tug strangecombination ntawm ob leeg. Muab tag nrho cov kev paub txog yav dhau los, peb tuaj yeem ua tsuas yog qhov kev kwv yees ntawm yav tom ntej.
Tsis tas li ntawd, qhov txawv ntawm classical thiab quantum txheeb cais yog dab tsi?
Quantum mechanics yog hais txog physics ntawm tej yam me me, molecules thiab me me. Classical mechanics yog hais txog macroscopic yam. Kev txheeb cais mechanics yog ib ceg ntawm theoretical physics uas siv qhov kev xav tau los kawm txog kev coj tus cwj pwm nruab nrab ntawm lub tshuab tshuab, qhov twg lub xeev ntawm lub cev tsis paub meej.
Koj txhais li cas los ntawm classical mechanics?
Classical mechanics yog ib ceg ntawm physics uas cuam tshuam nrog kev txav ntawm lub cev raws li Isaac Newton's lawsof mechanics . Classical mechanics piav qhia txog kev txav ntawm qhov taw tes pawg (cov khoom me me infinitesimally) thiab ntawm rigidbodies (cov khoom loj uas tig tab sis tsis tuaj yeem hloov pauv).
Pom zoo:
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