Question

Give the S.I. unit of energy, other than the S.I. unit, what are the two other units of energy?

Answer 1

The $S.I.$ unit of energy is Joule($J$).

The $CGS$ unit of energy is $erg$ which is equal to $1gc{m}^2{s}^{-2}$

The relation between CGS and SI unit of energy is $1erg={10}^{-7}J$

The$MKS$ unit of energy is $Kg{m}^2{s}^{-2}$

Hence, the unit of energy other than the $S.I.$ unit is $CGS$ is $1gc{m}^2{s}^{-2}$ and $MKS$ is $Kg{m}^2{s}^{-2}$.