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Work and Machines: Vocabulary Review

Teacher: C-Merner
Across
The rate at which work is done or energy is transformed. (556)
The work done on a machine; the product of the input force and the distance through which the force is exerted. (p. 559)
A machine made of more than one simple machine. (570)
A quantity usually expressed as a percentage that measures the ratio of work output to work input it can be calculated by dividing work output by work input. (562)
A simple machine that is a straight, slanted surface, which facilitates the raising of loads; a ramp. (568)
The unit used to express power; equivalent to joules per second. (556)
A simple machine that is made up of two inclined planes and that moves; often used for cutting (569)
A simple machine that consists of a wheel over which a rope chain, or wire passes. (566)
Down
The work done by a machine; the product of the output force and the distance through which the force is exerted. (559)
A simple machine that consists of an inclined plane wrapped around a cylinder. (569)
A number that tells how many times a machine multiplies force. (561)
A simple machine consisting of two circular objects of different sizes; the wheel is the larger of the two circular objects. (567)
The unit used to express energy; equivalent to the amount of work done by a force of 1 N acting through a distance of 1 M in the direction of the force. (p. 555)
A device that helps do work by either overcoming a force or changing the direction of the applied force. (559)
A simple machine that consists of a bar that pivots at a fixed point called a fulcrom. (565)
The transfer of energy to an object by using a force that causes the object to move in the direction of the force. (p. 553)