Examples of S.I. Units

What are S.I. Units and why do we need them? Teacher Zyen explains it in this video.

Here is a list of S.I. Units of some common physical quantities.

Physical QuantityS.I. Unit
Lengthmetre (m)
Timesecond (s)
Masskilogram (kg)
TemperatureKelvin (K)
Electric currentAmpere (A)
VoltageVolt (V)
Resistanceohm (Ω)
Force / WeightNewton (N)
PressurePascal (Pa)
EnergyJoule (J)

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