Simple Machines

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.

Formulas

MA= I/h     IMA= Rin/Rout.     IMA= i/h.  IMA= din/dout

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