| A | B |
|---|
| levers | simple machines used to lift things or overcome resistance |
| lever arm | a stick or beam, free to pivot on a point |
| fulcrum | the point around which the lever arm pivots |
| load | the mass lifted or the resistance overcome by the lever or pulley |
| force | a push or pull on something |
| effort | the force needed to lift or move the load or overcome a resistance. |
| advantage | making work easier |
| newtons | unit used to measure effort |
