Pulley: Is a simple machine that uses grooved wheels.
Lever: Stiff bar that rests on a support called a fulcrum which lifts or moves loads.
Wedge: Object with at least one slanting side ending in a sharp edge which cuts material apart.
Wheel and axle: Rod called an axle through its center lifts or moves loads.
Inclined pane: slanting surface connecting a lower level to a higher level.
Screw: Is an inclined plane wrapped around a pole which holds things together.
MA= I/h IMA= Rin/Rout. IMA= i/h. IMA= din/dout