| A | B |
| Radiant Energy | Energy that can move through empty space. |
| Thermal Energy | Energy created by the motion of atoms and molecules that occurs within an object. |
| Electrical Energy | Energy that comes from the electrons within atoms. |
| Mechanical Energy | Energy that moves objects from place to place. |
| Chemical Energy | Energy released by a chemical reaction. |
| Nuclear Energy | Energy contained in the nucleus of an atom. |
| Energy | The ability to do work. |
| Law of Conservation of Energy | Energy cannot be created or destroyed, but can change from one form to another. |
| Renewable Energy | A resource that can be replaced when needed. |
| Non-renewable Energy | A resource that cannot be replaced once it is used. |
| Potential Energy | Stored energy. |
| Kinetic Energy | Energy in motion. |