Simple Machines

Levers.     MA=L

Class one. A seesaw.

Class two. A wheelbarrow.

Class three. Your arm.

Inclined Plane. A ramp.

Screw. A screw. MA=PiD/1

Wedge. An axe. MA=S/W

Wheel and Axle. Car wheel. MA=R

Pulley. A pulley. N=FL

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