| A | B |
|---|
| Simple machine | a tool that provides advantage |
| Load | the resistance that is to be overcome or lifted |
| Effort | the force needed to overcome the load |
| Newton | the metric unit used to measure force |
| Advantage | the benefit obtained by using a simple machine |
| Diagram | drawing that describes the relationship of all the parts of a system |
| Pulley | wheel with a groove cut into its outside edge, free to rotate on an axle |
| Mechanical advantage | an advantage that reduces the effort required to move a load |
| Directional advantage | an advantage that only changes the direction of the effort |
| Fixed pulley | pulley that does not move. Has directional advantage |
| Movable pulley | pulley that moves with the load. Provides mechanical advantage |
| Work | happens when a force acts on something over a distance, either to lift it or overcome resistance |
