Lub ntsuas ntsuas yog siv los ntsuas qhov ntev, qhov hnyav lossis ntim ntawm ib qho khoom. Length yog ntsuas nyob rau hauv millimeters (mm), centimeters (cm), meters (m) los yog kilometers (km).
Dab tsi yog 7 qhov yooj yim ntawm kev ntsuas hauv qhov ntsuas ntsuas?
7 SI base units, uas muaj xws li:
- Length - meter (m)
- Sijhawm - thib ob (s)
- Ntau yam khoom - mole (mole)
- Hluav taws xob tam sim no - ampere (A)
- Temperature - kelvin (K)
- Lim siv zog - candela (cd)
- Mass - kilogram (kg)
Kev ntsuas ntsuas ntsuas yog dab tsi?
Lub ntsuas ntsuas siv cov ntsuas xws li meter, litre, thiab gram ntsuas qhov ntev, kua ntim, thiab qhov hnyav, ib yam li Asmeskas kev cai siv ko taw, quarts, thiab ounces los ntsuas cov no.
Ib co piv txwv ntawm kev ntsuas ntsuas yog dab tsi?
Cov txheej txheem ntsuas muaj meter, centimeter, millimeter, thiab kilometer ntev; kg thiab gram rau qhov hnyav; liter thiab milliliter rau muaj peev xwm; teev, feeb, vib nas this rau lub sijhawm.
4 metric units yog dab tsi?
Nyob rau hauv lub metric system ntawm kev ntsuas, feem ntau units ntawm kev ncua deb yog millimeters, centimeters, meters, thiab kilometers.
