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Chapter 5 - A.G

Vocab.

TermDefinition
Work The transfer of energy that occurs when a force makes an object move.
Power The amount of work done in one second.
Machine Device that makes doing work easier by increasing the force applied to an object, changing the direction of an applied forcem or increasing distance over which a force can be applied.
Input force The force that is applied to the machine.
Output force The force applied by a machine.
Mechanical advantage The ratio of the output force to the input
Efficiency A measure of how much of the work put into a machine is changed into useful output work by the machine.
Simple Machine A machine that does work with onley one movement of the machine.
Lever A bar that is free to pivot or turn around a fixed point.
Pulley A grooved wheel witha rope, chain, or cable running along the groove.
Wheel and Axle A simple machine consisting of a shaft or axle attached to the center of a larger wheel, so that the wheel and axle rotate together.
Inclined Plane A sloping surface such as a ramp that reduces the amount of froce requried tot do work.
Screw An inclined planc wrapped inn a spirtal around a cylindrical post.
Wedge An inclined plane with one or two sloping sides.
Compound Machine Two or more simple machines that operate together.
Created by: analizagarza
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