Video: Lub zog muaj peev xwm yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Muaj peev xwm zog yog cov zog los ntawm kev tsim txiaj ntawm ib qho khoom txoj hauj lwm txheeb ze rau lwm yam khoom. Muaj peev xwm zog feem ntau cuam tshuam nrog kev rov ua kom muaj zog xws li lub caij nplooj ntoos hlav lossis lub zog ntawm lub ntiajteb txawj nqus. Cov haujlwm no yog khaws cia rau hauv qhov chaw quab yuam, uas tau hais tias yuav khaws cia li muaj peev xwm zog.
Hais txog qhov no, hom zog twg yog lub zog muaj peev xwm?
Muaj peev xwm zog yog cov zog khaws cia rau hauv ib qho khoom, vim yog qhov khoom, kev npaj lossis lub xeev. Muaj peev xwm zog yog ib qho ntawm ob lub ntsiab cov qauv ntawm lub zog , nrog rau kinetic zog.
Dab tsi yog qhov yooj yim txhais ntawm lub zog muaj peev xwm? Muaj peev xwm zog yog txhais raws li mechanical zog , khaws cia zog , los yog zog tshwm sim los ntawm nws txoj hauj lwm. Cov zog hais tias ib lub pob muaj thaum perched rau saum toj ntawm lub toj siab thaum nws tab tom yuav dov yog ib qho piv txwv ntawm muaj peev xwm zog . Koj Dictionary txhais thiab piv txwv kev siv.
Kuj tseem paub yog, dab tsi yog lub zog muaj peev xwm hauv kev tshawb fawb?
Muaj peev xwm zog yog hom zog ib yam khoom muaj vim nws txoj hauj lwm. Qhov no yog qhov opposite ntawm kinetic zog - zog muab tau los ntawm ib yam dab tsi tam sim no nyob rau hauv kev txav. Ib yam nrog muaj peev xwm zog yog nyob rau hauv ib txoj hauj lwm kom tau tsiv thiab tsuas yog tos lub laub lossis shove ua nws yam.
Lub zog muaj peev xwm thiab lub zog kinetic yog dab tsi?
Muaj peev xwm zog yog cov zog nyob rau hauv lub cev vim nws txoj hauj lwm. Thaum kinetic zog yog cov zog nyob rau hauv lub cev vim nws txoj kev txav. Cov mis rau muaj peev xwm zog yog mgh, qhov twg m stands rau mass, g stands rau gravitational acceleration thiab h stands rau qhov siab.
Pom zoo:
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
Dab tsi yog cov qauv ntawm lub zog nyob rau hauv lub peev xwm thiab lub zog kinetic?
Lub zog muaj peev xwm yog khaws cia lub zog thiab lub zog ntawm txoj haujlwm - lub zog gravitational. Muaj ntau hom kev muaj peev xwm muaj zog. Kinetic zog yog kev txav - ntawm nthwv dej, electrons, atoms, molecules, tshuaj, thiab khoom. Chemical Zog yog lub zog khaws cia hauv cov khoom sib txuas ntawm atoms thiab molecules
Puas yog lub zog hauv daim ntawv ntawm kev txav yog lub zog muaj peev xwm?
Lub zog nyob rau hauv daim ntawv ntawm kev txav yog 'muaj peev xwm' zog. Qhov ntau dua 'mas' ib qho khoom txav muaj, lub zog kinetic nws muaj. Lub pob zeb ntawm ntug pob tsuas muaj 'kinetic' zog vim nws txoj hauj lwm. 'Thermal' zog yog lub zog khaws cia los ntawm cov khoom uas ncab los yog compression
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