# How are work and a change in energy related?

##### 1 Answer

May 30, 2015

Work done is equal to the change in energy (kinetic, potential, vibrational or rotational).

This is termed as the work-energy theorem.

The result can be derived very easily for simple cases involving rigid bodies in translational motion.

Try to cook up your own proof on this.

(Hint : Use the notion of time rate of change of kinetic energy