A lever is a simple machine that can be used to lift a heavy load. They consist of a hinge or fulcrum and a rigid beam. Levers can be put into 3 classes depending on the location of the load, effort and fulcrum.
Storyboard Text
LEVER A lever is a simple machine that can be used to lift a heavy load. They consist of a hinge or fulcrum and a rigid beam. Levers can be put into 3 classes depending on the location of the load, effort and fulcrum.