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Work, Power, and Mac

Content Creation Project2

Joule The unit used to express energy (symbol J)
Power The rate at which work is done or energy is transformed
Watt The unit used to express power (symbol W)
Work The transfer of energy to an object by using a force that causes the object to move in the direction of the force
Machine A device that helps do work by either overcoming a force or changing the direction of the applied force
Work input The work done on a machine; the product of the input force and the distance through which the force is exerted
Work output The work done by a machine; the product of the output force and the distance through which the force is exerted
Mechanical advantage A number that tells how many times a machine multiplies force
Mechanical efficiency A quantity, usually expressed as a percentage, that measures the ratio of work output to work input in a machine
Created by: katiebug_1617