Video: Dab tsi yog qhov nrawm hauv physics rau Chav Kawm 9?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ceev ceev : Ceev ceev yog cov ceev ntawm ib yam khoom txav mus rau qhov tseeb. SI unit of ceev kuj yog ' meter ' ib ob. Ceev ceev yog vector kom muaj nuj nqis; nws muaj ob qhov loj thiab kev coj.
Ua li no, txhais li cas ntawm kev nrawm hauv physics?
Ceev ceev yog txhais raws li kev ntsuas vector ntawm tus nqi thiab kev taw qhia ntawm kev txav. Muab tso yooj yim, ceev yog qhov ceev uas ib yam dab tsi txav mus rau hauv ib qho kev taw qhia. Qhov ceev ntawm lub tsheb mus rau sab qaum teb ntawm txoj kev loj loj thiab qhov ceev ntawm lub foob pob hluav taws tso rau hauv qhov chaw tuaj yeem ntsuas tau siv. ceev.
Tsis tas li ntawd, qhov ceev thiab nws cov qauv yog dab tsi? Ceev ceev (v) yog vector kom muaj nuj nqis uas ntsuas kev txav chaw (los yog hloov hauv txoj hauj lwm, Δs) dhau qhov kev hloov ntawm lub sij hawm (Δt), sawv cev los ntawm kev sib npaug v = s/t. Ceev (los yog tus nqi, r) yog ib tug scalar kom muaj nuj nqis uas ntsuas qhov kev ncua deb mus txawv tebchaws (d) nyob rau hauv lub hloov nyob rau hauv lub sij hawm (Δt), sawv cev los ntawm lub kev sib npaug r = d/t.
Hauv qhov no, koj yuav suav li cas hauv chav kawm 9 tshaj tawm?
Thawj qhov sib npaug ntawm kev txav yog v = u + at v = u + a t, qhov twg v yog qhov kawg ceev thiab koj yog thawj ceev ntawm lub cev. Thawj qhov sib npaug ntawm cov lus tsa suab muab ceev tau los ntawm lub cev txhua lub sijhawm t.
Dab tsi yog tus qauv rau qhov kawg tshaj tawm hauv physics?
Qhov kawg Velocity Formula v_f = v_i + aΔt. Rau qhov pib ceev ntawm ib qho khoom, koj tuaj yeem muab qhov nrawm nrawm vim yog lub zog los ntawm lub sijhawm siv lub zog thiab ntxiv rau qhov pib ceev kom tau qhov kawg ceev.
Pom zoo:
Dab tsi yog qhov zoo sib xws thiab qhov sib txawv ntawm qhov nrawm thiab nrawm?
Kev sib piv daim duab piv rau Kev Sib Piv Ceev Ceev Tus Nqi Hloov ntawm qhov kev ncua deb Hloov pauv hloov thaum lub cev rov qab mus rau nws qhov chaw pib Yuav tsis xoom Yuav yog xoom Tsiv khoom Ceev ntawm cov khoom txav tsis tuaj yeem tsis zoo. Kev nrawm ntawm cov khoom txav tuaj yeem yog qhov zoo, tsis zoo lossis xoom
Dab tsi yog qhov txawv ntawm qhov nrawm thiab nrawm nrog piv txwv?
Qhov laj thawj yog yooj yim. Kev nrawm yog lub sij hawm tus nqi ntawm qhov khoom txav mus raws txoj kev, thaum lub nrawm yog tus nqi thiab kev taw qhia ntawm qhov khoom txav. Piv txwv li, 50 km / h (31 mph) piav qhia txog qhov ceev ntawm lub tsheb uas taug kev raws txoj kev, thaum 50 km / teev sab hnub poob piav qhia txog qhov nrawm uas nws tab tom taug kev
Dab tsi ua rau qhov nrawm nrawm?
Nyob rau hauv physics, lub cim ntawm ib yam khoom acceleration nyob ntawm nws cov kev taw qhia. Kev nrawm tuaj yeem ua rau kom nrawm, txo qis, thiab txawm nyob twj ywm tib yam! Acceleration qhia koj tus nqi ntawm qhov kev hloov pauv. Vim tias qhov nrawm yog vector, koj yuav tsum xav txog qhov kev hloov pauv rau nws qhov loj thiab kev taw qhia
Qhov nruab nrab nrawm hauv physics yog dab tsi?
Nruab Nrab Velocity, Straight Line Qhov nruab nrab ceev ntawm ib yam khoom yog txhais raws li qhov kev ncua deb uas tau muab faib los ntawm lub sij hawm dhau mus. Velocity yog vector kom muaj nuj nqis, thiab qhov nruab nrab tshaj tawm tuaj yeem txhais tau tias qhov kev hloov pauv tau muab faib los ntawm lub sijhawm
Koj kawm li cas rau chav kawm biology hauv tsev kawm qib siab?
Kaum Lub Tswv Yim Kom Tau Txais A hauv Biology Plan rau lub sijhawm kawm biology. Ua cov ntsiab lus flashcards. Ua koj tus kheej. Kawm active, tsis passively. Xov tooj rau phooj ywg. Kuaj koj tus kheej ua ntej koj tus kws qhia ntawv xeem koj. Maximize cov ntsiab lus yooj yim. Thov kev pab ua ntej