Question

1. what is energy?

Explanation:

Energy is a fundamental concept in physics. It is the ability to do work or cause change. There are various forms such as kinetic (energy of motion), potential (stored energy), thermal (heat - related), etc. It can be transferred and transformed between different forms, but the total amount of energy in an isolated system remains constant according to the law of conservation of energy.

Answer:

Energy is the ability to do work or cause change, existing in multiple forms and following the law of conservation in isolated systems.