Beacon Learning Center


Lever

     A lever is a simple machine made with a straight bar that moves on a fixed point called a fulcrum.  All levers have two parts, the bar and the fulcrum.  The longer the lever is, the less force will be needed to move the load. 

     The load and the force move in opposite directions.  Notice that as the hammer is pulled down, the nail moves up.

When pulling a nail, a hammer is used as a lever.