Video: Yuav ua li cas tangential thiab angular acceleration cuam tshuam?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nyob rau hauv rotational motion, tangential acceleration isa ntsuas sai npaum li cas a tangential ceev hloov. Italways ua perpendicular mus rau centripetal kev ceev ntawm cov khoom rotating. Nws yog sib npaug rau cov angular acceleration α, lub sij hawm lub voj voog ntawm kev sib hloov.
Ntxiv mus, qhov txawv ntawm tangential thiab angular acceleration yog dab tsi?
Tangential acceleration tshwm sim los ntawm qhov hloov pauv loj ntawm lub tangential ceev ntawm ib yam khoom. Anobject tuaj yeem txav mus los hauv a lub voj voog thiab tsis muaj tangentialacceleration ntawm lub cev . Tsis muaj tangential acceleration yooj yim txhais tau tias angular acceleration ntawm cov khoom yog xoom thiab theobject yog txav nrog a tas li lub kaum sab xis ceev.
Yuav ua li cas yog tangential thiab angular velocity? Rau ib qho khoom rotating txog ib qho axis, txhua qhov taw tes ntawm cov khoom muaj tib yam angular tshaj tawm . Cov tangentialvelocity ntawm ib qho taw tes yog proportional rau nws qhov kev ncua deb ntawm lub axis ntawm kev sib hloov. Angular tshaj tawm muaj unitsrad/s.
Hauv qhov no, tangential thiab centripetal acceleration cuam tshuam li cas?
Kev taw qhia ntawm tangential acceleration istangent rau lub voj voog whereas cov kev taw qhia ntawm centripetalacceleration yog radially sab hauv mus rau qhov chaw ntawm lub voj voog.
Dab tsi ua rau tangential acceleration?
Tangential thiab centripetal kev ceev Cov tangential tiv at yog vim qhov kev hloov pauv ntawm kev ceev ntawm kev hla mus, thiab cov ntsiab lus raws qhov nkhaus ntawm qhov taw qhia ntawm qhov nrawm vector (los yog nyob rau hauv oppositedirection).
Pom zoo:
Yuav ua li cas koj pom angular tshaj tawm thiab acceleration?
Nyob rau hauv daim ntawv sib npaug, angular acceleration yog qhia raws li nram no: α=ΔωΔt α = Δ ω Δ t, qhov twg Δω yog qhov hloov pauv ntawm qhov nrawm nrawm thiab Δ t yog qhov hloov pauv ntawm lub sijhawm. Cov units ntawm angular acceleration yog (rad/s)/s, los yog rad/s2
Lub kaum sab xis ntawm qhov cuam tshuam cuam tshuam li cas rau cov tsos ntawm cov ntshav?
Thaum cov ntshav raug cuam tshuam, cov tee dej tau tawg los ntawm huab cua. Thaum cov tee dej no tawm tsam ib qho chaw, cov duab ntawm cov stain hloov nyob ntawm lub kaum sab xis ntawm qhov cuam tshuam, kev tshaj tawm, kev ncua deb thiab hom ntog cuam tshuam. Raws li lub kaum sab xis ntawm qhov cuam tshuam hloov, yog li qhov tshwm sim ntawm qhov tshwm sim stain
Dab tsi yog qhov sib txawv ntawm cov rog yuav cuam tshuam rau kev sib cuam tshuam ntawm cov dej molecules?
1 Teb. Qhov tseeb, dej muaj tag nrho peb hom kev sib xyaw ua ke, nrog qhov muaj zog tshaj plaws yog hydrogen bonding. Txhua yam muaj London dispersion yuam cov kev sib cuam tshuam tsis muaj zog yog ib ntus dipoles uas tsim los ntawm kev hloov ntawm electrons nyob rau hauv ib lub molecule
Dab tsi yog qhov txawv ntawm kev cuam tshuam kev cuam tshuam thiab kev cuam tshuam cuam tshuam?
Paub qhov txawv ntawm kev cuam tshuam kev tsim kho thiab kev cuam tshuam puas tsuaj. Kev tsim kev cuam tshuam tshwm sim thaum lub crests ntawm ob nthwv dej ntxiv ua ke. Kev cuam tshuam kev puas tsuaj tshwm sim thaum lub crest ntawm ib yoj raug txo los ntawm lub trough ntawm lwm tus
Lub zog cua sov cuam tshuam li cas rau kev sib cuam tshuam tshuaj?
Cov tshuaj tiv thaiv tshuaj feem ntau cuam tshuam nrog kev hloov pauv ntawm lub zog vim kev tawg thiab tsim cov ntawv cog lus. Cov tshuaj tiv thaiv uas lub zog raug tso tawm yog cov tshuaj tiv thaiv exothermic, thaum cov uas siv lub zog cua sov yog endothermic