Scalar, a lub cev kom muaj nuj nqis uas tau piav qhia tag nrho los ntawm nws qhov loj; piv txwv ntawm scalars yog ntim, ceev, ceev, zog, loj, thiab lub sij hawm. Lwm qhov ntau, xws li quab yuam thiab tshaj tawm, muaj ob qho tib si loj thiab kev taw qhia thiab hu ua vectors.
Qhov twg yog qhov ntau npaum li cas?
Scalar kom muaj nuj nqis muaj qhov loj lossis qhov loj thiab tsis xav tau lwm cov ntaub ntawv los qhia lawv. Yog li, 10 cm, 50 sec, 7 litres thiab 3 kg yog tag nrho cov piv txwv ntawm scalar ntau. Vector kom muaj nuj nqis muaj ob qhov loj lossis qhov loj thiab qhov kev taw qhia, hu ua kab ntawm kev txiav txim ntawm qhov ntau.
Qhov twg yog scalar kom muaj nuj nqis teb?
Scalar ntau muaj tsuas yog qhov ntau; vector ntau muaj ob qhov loj thiab kev coj. Lub sij hawm raug cais tag nrho ntawm kev coj; nws yog scalar. Nws tsuas muaj qhov loj, tsis muaj kev taw qhia. … Ceev yog qhov ntsuas, hos qhov nrawm yog vector.
5 piv txwv ntawm qhov ntsuas qhov ntsuas yog dab tsi?
Scalar Quantity Piv txwv
Lwm cov piv txwv ntawm scalar ntau yog mass, nrawm, nrug, sijhawm, lub zog, ntom, ntim, kub, nrug, ua haujlwm thiab lwm yam.
Us scalar quantity list?
Scalar quantities
- kub - piv txwv li 10 degrees Celsius (°C)
- mass – eg 5 kilograms (kg)
- zog – xws li 2, 000 joules (J)
- distance – xws li 19 meters (m)
- nrawm - piv txwv li 8 meters ib ob (m / s)
- ntom - piv txwv li 1, 500 kilogramsib ' meter ' cubed (kg / m 3)
