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Work and Machines

QuestionAnswer
Force exerted on an object that causes it to move Work
A unit of work equal to one newton per meter Joule
The rate at which work is done Power
A device that changes the amount of force exerted, the distance over which a force is exerted, or the direction in which force is exerted Machine
The force exerted on a machine Input Force
The force exerted on an object by a machine Output Force
The work done on a machine as the input force acts through the input distance Input work
The work done by a machine as the output force acts through the output distance Output work
The number of times a machine increases a force exerted on it Mechanical Advantage
The percentage of the input work that is converted to the output work Efficiency
A simple machine that is a flat, sloped surface Inclined Plane
A simple machine that is an inclined plane that moves Wedge
A simple machine that is an inclined plane wrapped around a central cylinder to form a spiral Screw
A simple machine that consists of a rigid bar that pivots about a fixed point Lever
The fixed point around which a lever pivots Fulcrum
A simple machine that consists of two attached circular objects that rotate about a common axis Wheel and axle
A simple machine that consists of a grooved wheel with a rope or cable wrapped around it Pulley
A device that combines two or more simple machines Compound machine
Created by: choward53
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