| A | B |
| energy | The ability to do work or cause change, such as moving an object some distance |
| kinetic energy | Energy that an object has because of its motion |
| potential energy | Energy that is stored and held in readiness |
| mechanical energy | Kinetic or potential energy associated with the motion or position of an object |
| chemical energy | The potential energy stored in chemical compounds |
| electrical energy | The energy of moving electric charges |
| thermal energy | The total energy of a substance’s or material’s particles due to their movement or vibration |
| radiant energy | The energy of electromagnetic waves and light |
| nuclear energy | The potential energy stored in the nucleus of an atom. |
| energy conversion | The process of changing one form of energy into another |
| Law of conservation of energy | The rule that energy cannot be created or destroyed. |
| power | The rate at which work is done or the rate at which one form of energy is converted into another. |