Levers can be arranged in different ways and are described in three classes, all of which follow the law of the lever. Class 1 Levers Class 1 is perhaps the most familiar.

Third class levers (Class 3) place the effort between the fulcrum and the load. If the effort and the fulcrum are further apart, it becomes easier to lift.

This video explores different methods that can be use to amplify a force, and focuses on three types of machine - levers, pulleys and gears. The amplification of a force is called mechanical advantage ...

In a class one lever (there are three classes of levers in all), the fulcrum is positioned between the load and the point where the effort is applied. One end of the lever arm goes under the ...

In a class one lever (there are three classes of levers in all), the fulcrum is positioned between the load and the point where the effort is applied. One end of the lever arm goes under the ...