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Chapter 5 vocab

chapter 5 vocablary

QuestionAnswer
Work transfer of energy that occurs when a force makes an object move measured in joules.
Power amount of work done or the amount of energy transferred divided by the time required to do the work or transfer the energy measured in watts
machine device that makes doing work easier by increasing the force applied to an object changing the direction of an applied force or increasing the distance over which a force can be applied
input force The force that is applied to the machine
output force The force applied by the machine
mechanical advantage ratio of the output force exerted by a machine to the input force applied to the machine
efficiency ratio of the output work dojne by the machine to the input work done on the machine expressed as a percentage.
Simple machine any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.
lever simple machine consisting of a bar free o pivot about a fixed point called the fulcrum
wheel and axle simple machine that consists of a shaft or axle attached to the center of a larger wheel so that the shaft and the wheel rotate together
pulley simple machine that consists of a grooved wheel with a rope, chain, or cable running along the groove can be either fixed or movable
inclined plane simple machine that consists of a sloping surface such as a ramp that reduces the amount of force needed to lift something by increasing the distance over which the force is applied
screw simple machine that consists of an inclined plane wrapped in a spiral around a cylindrical post
wedge simple machine that is an inclined plane wiwwth one or two sloping sides
compound machine machine that is a combination of two or more simple machines
Created by: Ashlynbrantner
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