Question

Which of the following is the best definition of energy? (Points : 1)

the ability to generate electricity

the ability to generate heat

the ability to do work

the ability to produce fusion

Answer 1

The ability to do work

The most common definition of energy is the work that a certain force can do. Due to a variety of forces, energy has many different forms that can be grouped into two major categories: kinetic energy and potential energy.

However, in this scenario, Option 3 is correct.

Answer 2

Energy is best defined as "the ability to do work". This is the fundamental definition of energy which has been used by physicists for a very long time, and highlights the most important definitional property of energy - be it kinetic or potential - the capability to do work on objects by causing them to move.