Energy is a fundamental concept in physics, engineering, and daily life, representing the ability to do work or cause change. It exists in various forms, including kinetic energy (motion), potential energy (stored energy), thermal energy (heat), chemical energy (stored in chemical bonds), electrical energy (flow of electrons), and nuclear energy (stored in atomic nuclei). Energy can be transformed from one form to another, such as when chemical energy in fuel converts into heat and motion in an engine.
