Simple machines

Cars and bicycles. Forklifts and cranes.  Water faucets and even the flush mechanism on toilets. All of these are “complex machines” made by putting together combinations of 6 simple machines.
Teach students about the lever, wheel and axle, pulley, screw, wedge, and inclined plane.

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Simple machines

Simple machines are devices humans use to complete tasks using less effort. The ancient philosophers called them "the five greats".  They are: the inclined plane, the screw, the wheel, the lever and the pulley.

THE INCLINED PLANE

THE WHEEL

THE LEVER

THE PULLEY