| A | B |
| The ability to do work or cause change, such as moving an object some distance | Energy |
| Energy that an object has because of its motion | Kinetic energy |
| Energy that is stored and held in readiness | Potential energy |
| The energy of stretched or compressed objects | Elastic potential energy |
| Potential energy that depends on the height of an object | Gravitational potential energy |
| Kinetic or potential energy associated with the motion or position of an object | Mechanical energy |
| The potential energy stored in chemical compounds | Chemical energy |
| The energy of moving electric charges | Electrical energy |
| The energy of light and other forms of radiation | Electromagnetic energy |
| The potential energy stored in the nucleus of an atom | Nuclear energy |
| The process of changing one form of energy into another | Energy conversion |
| The rule that energy cannot be created or destroyed | Law of conservation |
| Materials such as coal that are burned to release their chemical energy | Fossil fuels |
| The rate at which work is done or the rate at which one form of energy is converted into another | Power |