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Science

Sarvis

QuestionAnswer
force push or pull on something
work is done when a force exerted on an object causes that object to move -some- distance
power rate at which work is done
version is any change in form
friction force that opposes motion between 2 touching surfaces
efficiency output work divided byb input work
input force force excerted on a machine
mechanical advantage number of times that a machine increases the input force;equal to the output force divided by the input force
output force force exerted by a machine
device a thing made for a particular purpose; an invention or contrivance, esp. a mechanical or electrical one
compound made of seperate pieces or parts
pulley a grooved wheelith a rope or cable wrapped around the groove
simple machine machine that does work with only one movemaent
wedge an inclined plane that moves
inclined plane a flat,sloped surface,or ramp
screw an inclined plane wrapped around a cylinder or post
compound machine machine made up of two or more simple machines
wheel and axle two circular objects of different sizes that rotate together
lever a rigid rod or plank that pivots about a point called the fulcrum
section a part that is cut off or separated
Created by: valeriez
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