| A | B |
|---|
| fulcrum | pivot point of a lever arm |
| lever | a bar, free to pivot around a point, used to move a load |
| load | the resistance of weight |
| effort | force applied to a simple machine to move load |
| class 1 lever | lever: fulcrum between load and effort |
| class 2 lever | lever: load is between fulcrum and effort |
| class 3 lever | lever: effort is between fulcrum and load |
| work | using a force to make something move |
