Question

Define energy and state its unit.

Answer 1

Energy:

1. Energy can be defined as the ability to do work.
2. The amount of energy possessed by a body is equal to the amount of work it do when its energy is released.
3. Energy is a scalar quantity.
4. The SI unit of energy is Joule.
5. The energy required to do 1 joule of work is called 1 joule of energy.