Video: Puas yog lub zog hauv daim ntawv ntawm kev txav yog lub zog muaj peev xwm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub zog nyob rau hauv daim ntawv ntawm kev txav yog 'muaj peev xwm ' zog . Qhov ntau dua 'mas' ib qho khoom txav muaj, qhov ntau dua zog nws muaj. Lub pob zeb ntawm ntug pob tsuas muaj 'kinetic' zog vim nws txoj hauj lwm. 'Thermal' lub zog yog lub zog khaws cia los ntawm tej yam uas stretch orcompress.
Ua li no, lub zog muaj peev xwm yog ib hom ntawm lub zog?
Muaj peev xwm zog yog cov zog uas tshwm sim los ntawm kev tsim txiaj ntawm cov txheeb ze txoj haujlwm (kev teeb tsa) ntawm cov khoom hauv lub cev. Qhov no daim ntawv ntawm lub zog muaj cov peev xwm hloov lub xeev ntawm lwm yam khoom nyob ib ncig ntawm nws, piv txwv li, configuration los yog tsab ntawv tsa suab.
dab tsi lub zog muaj peev xwm? Hauv physics, muaj peev xwm zog yog cov zog tuav los ntawm ib qho khoom vim nws txoj hauj lwm txheeb ze rau lwm yam khoom, kev ntxhov siab hauv nws tus kheej, nws cov nqi hluav taws xob, lossis lwm yam.
Kuj paub, dab tsi lub zog yog vim muaj zog?
kinetic zog
Puas yog lub hnub ci zog kinetic lossis lub zog muaj peev xwm?
Hnub Ci Zog Kinetic lossis Muaj Peev Xwm Txhua yam ntawm zog yog ib qho kinetic orpotential . Cov zog txuam nrog … xov tooj cua, microwaves, infrared, lub teeb, ultraviolet, x-rays, gamma rays; hnub ci zog …
Pom zoo:
Puas yog nws muaj tseeb tias nyob rau hauv kev thauj mus los ntawm kev txav ntawm cov khoom hla ib daim nyias nyias yuav tsum muaj zog?
Hauv kev thauj mus los passive, kev txav ntawm cov khoom hla ib daim nyias nyias yuav tsum muaj zog. _ Muaj tseeb_ 5. Endocytosis yog ib txoj kev uas ib lub cell membrane nyob ib puag ncig thiab siv cov khoom los ntawm ib puag ncig. Ib daim nyias nyias uas tso cai rau qee cov ntaub ntawv dhau los qhia txog kev xaiv permeability
Dab tsi yog qhov txawv ntawm electrostatic muaj peev xwm thiab electrostatic muaj peev xwm zog?
Tsis muaj qhov sib txawv ntawm electrostatic potentialenergy thiab hluav taws xob (al) muaj peev xwm zog. Lub peev xwm hluav taws xob ntawm ib qho taw tes yog kev ua haujlwm los ntawm lwm qhov kev quab yuam hauv kev txav chav tsev zoo los ntawm ib qho arbitrarilychosen xoom ntawm lub peev xwm (feem ntau infinity) mus rau lub ntsiab lus
Puas muaj peev xwm hluav taws xob thiab lub zog muaj peev xwm tib yam Vim li cas lossis vim li cas ho tsis?
Lub zog muaj peev xwm hluav taws xob Ue yog lub zog muaj peev xwm khaws cia thaum cov nqi tawm ntawm qhov sib npaug (xws li lub zog muaj peev xwm gravitational). Lub peev xwm hluav taws xob zoo ib yam, tab sis ib tus nqi, Ueq. Ib qho hluav taws xob muaj peev xwm sib txawv ntawm ob lub ntsiab lus hu ua voltage, V = Ue2q−Ue1q
Puas yog chemical zog yog ib daim ntawv ntawm lub zog muaj peev xwm?
Tshuaj muaj peev xwm muaj peev xwm yog ib daim ntawv ntawm lub zog muaj peev xwm cuam tshuam nrog kev teeb tsa ntawm atoms lossis molecules. Qhov kev npaj no yuav yog qhov tshwm sim ntawm cov khoom siv tshuaj lom neeg hauv ib lub molecule lossis lwm yam. Chemical zog ntawm ib yam tshuaj muaj peev xwm hloov mus rau lwm yam ntaub ntawv ntawm lub zog los ntawm ib tug tshuaj tiv thaiv
Puas muaj peev xwm equilibrium zoo ib yam li so muaj peev xwm?
Qhov sib txawv ntawm daim nyias nyias muaj peev xwm thiab qhov muaj peev xwm sib npaug (-142 mV) sawv cev rau lub zog hluav taws xob hluav taws xob uas tsav Na + mus rau hauv lub xovtooj ntawm lub peev xwm so membrane. Thaum so, txawm li cas los xij, qhov permeability ntawm daim nyias nyias mus rau Na + tsawg heev kom tsuas yog me me Na + xau rau hauv lub cell