Comparing a machine's work output with work input

The product of the input force and distance through which it is exerted

A machine with a bar that pivots on a fixed point

The product of the output force and the distance through which it is exerted

The unit used to express power

A device that makes work easier by changing the size or direction of a force

A unit used to express work

A machine with two circular devices of different sizes

A machine made of two or more simple machines

The transfer of energy that caused an object to move in the direction of the force

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