Video: Elastic strain zog yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Elastic Strain Zog . Mus txog ntawm elastic txwv ntawm ib tug qauv, tag nrho cov hauj lwm ua nyob rau hauv stretching nws yog khaws cia muaj peev xwm zog , los yog Elastic Strin Zog . Qhov txiaj ntsig no tuaj yeem txiav txim siab los ntawm kev suav cov cheeb tsam hauv qab lub zog-ntxiv daim duab.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog elastic zog?
Elastic peev xwm zog yog Potential zog khaws cia raws li qhov tshwm sim ntawm deformation ntawm ib qho elastic khoom, xws li stretching ntawm lub caij nplooj ntoos hlav. Nws sib npaug rau txoj haujlwm ua kom ncab lub caij nplooj ntoos hlav, uas nyob ntawm lub caij nplooj ntoos hlav tas li k nrog rau qhov kev ncua deb.
Ib yam li ntawd, vim li cas lub zog elastic zog tseem ceeb? Lim lub zog yog ib lub zog tseem ceeb khaws cia rau hauv elastic cov khoom thaum lawv deform vim externalforces. Qhov no zog tuaj yeem hloov mus rau hauv mechanical zog thiab siv los elastically rov qab ib yam khoom rau nws cov duab qub thiab orientation thaum lub zog raug tshem tawm.
Hais txog qhov no, dab tsi yog lub zog txhais lus?
Molecular Lim Kev ua haujlwm sab nraud ua rau tus tswv cuab elastic hauv qhov ua rau muaj kev cuam tshuam los ntawm nws lub xeev tsis muaj kev ntxhov siab yog hloov mus rau hauv txhawb zog uas yog ib daim ntawv muaj peev xwm zog . Qhov txhawb zog nyob rau hauv daim ntawv ntawm elastic deformation ismostly recoverable nyob rau hauv daim ntawv ntawm mechanicalwork.
Puas yog lub zog strain zoo ib yam li lub zog elastic?
Elastic zog zog yog a muaj peev xwm - elastically deforming cov khoom yog nyob rau hauv ntau txoj kev zoo ib yam li tsa ib tug luj tawm hauv av; nyob rau hauv ob qho tib si muaj peev xwm zog yog nce. Ib yam li ntawd, kev ua haujlwm yog ua tiav cov hlua roj hmab.
Pom zoo:
Lub zog thiab lub zog ua haujlwm yog dab tsi?
WORK = W = Fd. Vim tias lub zog yog lub peev xwm ua haujlwm, peb ntsuas lub zog thiab ua haujlwm hauv tib chav (N * m lossis joules). POWER (P) yog tus nqi ntawm lub zog tsim (lossis nqus) lub sijhawm: P = E / t. Fais fab lub SI unit ntawm kev ntsuas yog Watt, sawv cev rau tiam los yog nqus ntawm lub zog ntawm tus nqi ntawm 1 Joule / sec
Dab tsi yog qhov txawv ntawm daim ntawv cog lus lub zog thiab daim ntawv cog lus dissociation zog?
Qhov sib txawv tseem ceeb ntawm kev sib txuas ntawm lub zog thiab lub zog bonddissociation yog tias lub zog sib txuas yog qhov nruab nrab ntawm lub zog xav tau los rhuav tshem tag nrho cov kev sib txuas ntawm tib ob hom atoms nyob rau hauv ib qho chaw sib txuas whereas daim ntawv cog lus dissociation zog yog tus nqi ntawm cov hluav taws xob xav tau los rhuav tshem ib qho kev sib koom ua ke inhomolysis
Nyob rau hauv cov xwm txheej twg muaj zog elastic zog tam sim no?
Elastic muaj peev xwm muaj peev xwm muab khaws cia rau hauv cov roj hmab bands, bungee chords, trampolines, springs, ib tug xub kos rau hauv ib tug hneev nti, thiab lwm yam. Tus nqi ntawm elastic zog muaj peev xwm khaws cia nyob rau hauv xws li ib tug ntaus ntawv muaj feem xyuam rau tus nqi ntawm stretch ntawm lub ntaus ntawv - qhov ntau. stretch, lub zog khaws cia ntau dua
Dab tsi yog chav tsev rau elastic muaj peev xwm zog?
Elastic muaj peev xwm lub zog yog khaws cia rau hauv lub caij nplooj ntoos hlav uas tau ncab los yog compressed los ntawm qhov deb x deb ntawm nws txoj hauj lwm sib npaug. Tsab ntawv k yog siv rau lub caij nplooj ntoos hlav tas li, thiab nws muaj cov units N / m. Zoo li txhua txoj haujlwm thiab lub zog, chav tsev ntawm lub zog muaj peev xwm yog Joule (J), qhov twg 1 J = 1 N∙m = 1 kg m2 / s2
Dab tsi yog qhov txawv ntawm lub zog siv zog thiab lub zog thauj khoom?
Raws li nrog cov dav hlau inclined, cov khoom yuav tsum tau txav mus los yog lub zog muaj zog los yog thauj khoom thiab kev siv zog yog lub zog muab tso rau hauv kev txav mus los ntawm lwm qhov kawg ntawm lub fulcrum