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14.4 Chemistry

Vocabulary Words

QuestionAnswer
lever a rigid bar that is free to move around a fixed point
fulcrum the fixed point the bar rotates around
input arm distance between the input force and the fulcrum
output arm distance between the output force and the fulcrum
wheel and axle a simple machine that consists of two disks or cylinders, each one with a different radius
inclined plane a slanted surface along which a force moves an object to a different elevation
wedge a V-shaped object whose sides are two inclined planes sloped toward each other
screw an inclined plane wrapped around a cylinder
pulley a simple machine that consists of a rope that fits into a groove in a wheel
compound machine a combination of two or more simple machines that operate together
Created by: MarieElyn