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Intro to physical science Ch. 14 Sec 3

simple machines
simple machine
a machine that does work with only one movement
compound machine
a machine made up of a combination of simple machines
inclined plane
a flat sloped surface or ramp
an inclined plane that moves. Can have two sloping sides.
an inclined plane that wraps around a cylinder or post
a rigid rod or plank that pivots or rotates about a fixed point
wheel and axel
two circular objects of different sizes that area attached and rotate together
a grooved wheel with a rope or cable wrapped around the groove