| A | B |
| Friction | A force that opposes motion |
| Load | ANother name for the resistance |
| Effort Force | The force applied to a machine |
| Work | Force times distance |
| Resistance | The object that you are trying to move |
| Resistance Arm | Distance from the fulcrum to the resistance on a lever |
| Effort Arm | Distance from the fulcrum to the effort on a lever |
| Force | a push or pull |
| Screw | An inclined plane wrapped around a spiral |
| Pulley | A grooved wheel with a rope or chain running along the groves |
| Lever | A bar free to pivot or turn around a fixed point |
| Inclined Plane | A sloping surface used to raise objects |
| Wedge | An inclined plane with one or more sloping sides that moves through an object |
| Wheel and Axle | A circular object that is fastened and rotates around a common axis |