Question

Define Energy? S.I.Unit?

Answer 1

Answer:

the strength and vitality required for sustained physical or mental activity.

joule

The SI unit of energy/work is the joule (J), named for English physicist James Prescott Joule (1818 - 1889). Joule discovered the relationship between heat and mechanical work, which led to the development of the laws of thermodynamics.

Answer 2

It is defined as the ability of a body to do work. It is measured by the amount of work that a body can do. It is a scalar quantity. Like work,

The SI unit of energy/work is the joule (J).