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physical science vo

TermDefinition
simple machines make work easier
mass the amount of matter that makes up an object
force a push or pull
friction a force that causes objects in motion to speed up or slow down when two surfaces run together
speed a measure of how far an object moves in a certain amount of time
motion movement, or change in an object's postition
position the place where and object is located
gravity a force that pulls things toward the earth
Created by: user-2014127
 

 



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