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ch 3.3 vocab
Term | Definition |
---|---|
simple machines | do work using only one movement |
lever | a simle machine made up of a bar that pivots or rotates about a fixed point |
fulcrum | the point at which a lever pivots |
wheel and axil | an axle attached to the center of a wheel and both rotate together |
inclined plane | flat sloped surface |
wedge | sloped surface that moves |
screw | inclined plane wrapped around a cylinder |
pulley | simple machine that is a grooved wheel with a rope or a cable wrapped around it |