Some levers operate with mechanical advantage. ... First, second and third class levers. More guides on this topic. Muscular system - Edexcel; Skeletal system - Edexcel; ...

Levers use mechanical advantage to ease lifting; they consist of a bar and a pivot (fulcrum) with effort, fulcrum, and load arranged differently in first, second, and third class levers ...

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 ...