| A | B |
|---|
| Work | The use of force to move an object a certain distance, or to change an object. |
| Energy | The ability to perform work or change an object. |
| Potential Energy | Energy stored in the position or structure of an object. |
| Kinetic Energy | The energy of a moving object. |
| Law of Conservation of Energy | Energy may change form but it cannot be created or destroyed. |
| Simple Machine | A machine that changes the direction, distance, or strength of one force. |
| Effort | The force applied to a machine. |
| Load | The object being moved by the machine. |
| Fulcrum | The pivot point of a lever. |
| Compound Machine | A combination of two or more simple machines. |
| Efficience | The measure of how much useful work a machine puts out compared to the amount of work put into it. |
