| A | B |
| energy | ability to work |
| mechanical energy | energy associated with motion |
| heat energy | energy involved in the internal motion of particles of matter |
| chemical energy | energy that bonds atoms or ions together |
| electromagnetic energy | energy associated with moving electrons |
| nuclear energy | energy associated with the center of an atom |
| kinetic energy | energy that a moving object has due to motion; energy of motion |
| potential energy | energy of shape or position; stored energy |
| energy conversion | change of energy from one form to another |
| Conservation of Energy | energy can neither be created or destroyed by ordinary means |