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Motion and Forces

Unit 2 Vocabulary

TermDefinition
Work the use of a force to move an object some distance in the direction of the force
Energy the ability to do work
Power the rate at which work is done
Kinetic Energy the energy of motion
Potential Energy the energy an object has because of its position,condition, or chemical composition
Mechanical Energy the energy possessed by an object due to its motion and position
Machine any device that helps people do work by changing the way work is done
Fulcrum the fixed point on a lever
Mechanical Advantage the number of times the machine multiplies the input force
Wheel and Axle a simple machine that is made of a wheel connected top a smaller cylindrical object, the axle
Mechanical Efficiency a comparison of a machine's work output with the work input
Pulley a simple machine that has grooved wheel that holds holds a rope or a cable
Lever a simple machine that has a bar the pivots at a fixed point
Inclined Plane a simple machine that is a straight slanted surface
Created by: 18kstuber0729
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