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work, power, and simple machines chapt. 14
An example of a first class lever.
A unit used to measure force.
An example of a third class lever.
A chain, belt or rope wrapped around a wheel.
A force exerted over a distance to move an object.
A unit used to measure work.
A device that makes work easier.
An inclined plane that moves.
Place where a level is supported.
comparison of work input to work output.