Video: Dab tsi yog chav tsev rau elastic muaj peev xwm zog?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Elastic muaj peev xwm zog yog khaws cia nyob rau hauv lub caij nplooj ntoos hlav uas tau ncab los yog compressed los ntawm ib tug deb x deb ntawm nws txoj hauj lwm equilibrium. Tsab ntawv k yog siv rau lub caij nplooj ntoos hlav tas li, thiab nws muaj units N/m. Zoo li txhua txoj haujlwm thiab zog , cov chav tsev ntawm muaj peev xwm zog yog Joule (J), qhov twg 1 J = 1 N∙m = 1 kg m2/s2.
Tsuas yog li ntawd, dab tsi yog lub zog elastic zog ntsuas hauv?
Elastic muaj peev xwm zog = × lub caij nplooj ntoos hlav tas li × extension 2. Nov yog thaum: elastic muaj peev xwm zog (E e) yog ntsuas hauv joules (J) caij nplooj ntoos hlav tas li (k) yog ntsuas in newtons per meter (N/m) extension (x) yog ntsuas hauv meters (m)
Qhov twg yog qhov muaj peev xwm elastic zog feem ntau pom? Cov elastic muaj peev xwm zog tuaj yeem yog pom los ntawm cheeb tsam nyob rau hauv lub quab yuam vs extension nkhaus, tsis hais qhov zoo ntawm qhov nkhaus.
Ua kom pom qhov no, lo lus sib npaug rau lub zog elastic zog yog dab tsi?
Hooke txoj cai muab lub zog rau peb nrhiav elastic muaj peev xwm zog . Saib ntawm daim duab ntawm lub zog piv rau kev hloov pauv, peb tuaj yeem pom tias qhov formula rau elastic muaj peev xwm zog PE = 1/2(kx^2).
Elastic muaj peev xwm zog GCSE yog dab tsi?
Elastic Potential Zog hu ua "EPE" yog ib qho kev ntsuas. ntawm lub zog rov qab los thaum ib yam khoom hloov nws cov duab. Elastic txhais tau tias yog ib yam khoom. yuav rov qab mus rau nws qhov qub qub thaum lub zog raug tshem tawm.
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 muaj peev xwm elastic sib npaug rau lub zog kinetic?
Lub zog muaj peev xwm yog lub zog uas khaws cia hauv ib qho khoom. Piv txwv li, ib txoj hlua roj hmab uas ncab muaj zog elastic zog, vim hais tias thaum tso tawm, cov roj hmab band yuav rov qab mus rau nws lub xeev so, hloov lub peev xwm mus rau kinetic zog hauv cov txheej txheem
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