| A | B |
| Energy | The ability to do work. |
| Kinetic Energy | Energy an object has because it is moving. |
| Potential Energy | Energy an object has because of its position or arrangement. |
| Conservation of Energy | Energy cannot be created nor destroyed. |
| Heat Energy | Energy that flows from areas of high temperature to areas of low temperature. It is caused by the random motion of molecules. |
| Mechanical Energy | The total amount of potential energy and kinetic energy. |
| Friction | A force that changes kinetic energy to heat energy. |
| Temperature | The average kinetic energy of random molecular motion. |