Video: Puas yog lub zog gravitational zoo ib yam li lub zog muaj peev xwm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Muaj peev xwm zog yog zog uas khaws cia rau hauv ib yam khoom lossis khoom. Gravitational muaj peev xwm zog yog zog nyob rau hauv ib yam khoom uas yog tuav nyob rau hauv ib tug ntsug txoj hauj lwm. Elastic muaj peev xwm zog yog zog khaws cia rau hauv cov khoom uas yuav ncab los yog compressed.
Tom qab ntawd, ib tug kuj yuav nug, hom ntawm lub zog yog gravitational zog?
muaj peev xwm zog
Tsis tas li ntawd, qhov txawv ntawm qhov muaj peev xwm gravitational thiab lub zog gravitational muaj peev xwm muab tau ib qho kev qhia rau gravitational muaj peev xwm ntawm lub cev? PE = mgh. Gravitational peev xwm yog txoj haujlwm ua tiav rau ib chav tsev loj thaum nws raug coj los ntawm infinity mus rau ib qho chaw. Gravitational muaj peev xwm zog yog txoj haujlwm ua tiav thaum koj tsiv a lub cev los ntawm infinity mus rau qhov point. Nws manifests nws tus kheej nyob rau hauv daim ntawv ntawm khaws cia zog lub muaj peev xwm zog.
Hauv qhov no, vim li cas lub zog gravitational muaj peev xwm muaj zog?
Gravitational muaj peev xwm zog yog zog ib yam khoom muaj vim nws txoj hauj lwm hauv a gravitational teb. Txij li thaum lub zog yuav tsum tau nqa nws yog sib npaug rau nws qhov hnyav, nws ua raws li qhov gravitational muaj peev xwm zog yog sib npaug rau nws qhov hnyav lub sij hawm qhov siab uas nws yog lifted.
Dab tsi yog gravitational muaj peev xwm zog nyob ntawm?
Gravitational muaj peev xwm zog yog vim txoj hauj lwm ntawm ib yam khoom saum lub ntiaj teb nto. Cov khoom muaj qhov peev xwm poob vim lub ntiajteb txawj nqus. Gravitational muaj peev xwm zog nyob ntawm ib qho khoom hnyav thiab nws qhov siab tshaj hauv av (GPE = qhov hnyav x 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 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
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