Simple Machine
By Quramane Flintroy
A Pulley
A pulley is a simple machine for Ex.a rope or chain of a wheel that groove rim in which change directions.
Wedge
A wedge is a piece of wood or metal or material having one thick end and tapering to a thin edge
Lever
A lever is use to move heavy or firmly fixed one load end
Inlcined plane
Its a slope ramp that heavy loads can be rise by chain