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Simple Machines and Work

Force

A push or pull

Work

The transfer of energy through motion

Power

The rate of doing work

Machine

A device that makes work easier

Mechanical Advantage

The amount by which a machine multiplies the effort force

Effort Force

The force applied to a machine

Resistance Force

The force applied by the machine to move a load

Fulcrum

The pivot point of a lever system

Screw

A simple machine consisting of an inclined plane wrapped around a cylinder

Pulley

A simple machin consisting of a wheel and axle with a rope, chain, or material wrapped around it

Wedge

A simple machine consisting of two inclined planes aligned back to back

Compound Machine

A Machine consisting of two or more simple machines

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