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 ...

There are three different types of levers ... on the use and the desired output movement different shapes can be used. Pulleys use mechanical advantage, similar to levers, to lift loads.

Let’s take a look at some of the simple mechanisms that they use ... pulley is a type of wheel that has an inner groove on its edge. When a rope, cable or belt runs along the groove, objects can ...