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Physical Science: Chapter 8

Across
The unit used to express power
A machine that is made of two or more simple machines.
A simple machine consisting of two circular objects of different sizes
The action that results when a force causes an object to move in the direction of the force
A comparison-expressed as a percentage-of a machine's work output with the work input
A simple machine consisting of two circular objects of different sizes
A device that helps make work easier by changing the size or direction (or both) of a force
A simple machine that is a double inclined plane that moves.
Down
The work done on a machine
The rate at which work is done.
A number that tells how many times a machine multiplies force
A simple machine that is a straight, slanted surface
The unit used to express work and energy
A simple machine consisting of a bar that pivots at a fixed point, called a fulcrum; there are three classes of levers, based on where the input force, output force, and fulcrum are placed in relation to the load
The work done by a machine
A simple machine consisting of a grooved wheel that holds a rope and cable