A simple machine consisting of an inclined plane wrapped helically about an axle. : A simple machine consisting of a rigid rod and a fulcrum. : A simple machine consisting of a portable inclined plane that is thicker on one side than the other that can be used to change the direction of a force. : A simple machine consisting of a wheel with a grooved rim that holds a line that can change the direction of a force or can be used in combination to decrease the amount of effort required to lift a load.
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A simple machine consisting of an inclined plane wrapped helically about an axle. : A simple machine...
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