| A | B |
| Energy | The ability to do work |
| X rays | Dentists use this to check for cavities |
| Sound Energy | The energy of vibrations |
| Potential Energy | Stored energy |
| Radiant Energy | Energy that moves through empty space in waves |
| Kinetic Energy | The energy an object has due to its motion |
| Electrical Energy | Energy carried by electricity |
| Protons | Positive charge |
| Electrons | Negative Charge |
| Neutrons | Neutral (No charge) |
| Chemical Energy | Energy released by a chemical change |
| Nuclear Energy | Energy produced when atoms split or when atoms join to form one atom |
| Mechanical Energy | Energy due to an objects motion or position or condition |
| Thermal Energy | Energy of the movement of atoms and molecules |