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Randolph 4th Motion

4th Grade Harcourt Science Unit F Chapter 2 Motion-Forces @ wk

WordDefinition
relative motion motion that is described based on a frame of reference
motion any change of position
acceleration change in the speed or direction of an object's motion
gravity force that pulls all objects toward each other
position describes a certain place
force any push or pull
newton metric unit of force
frame of reference things around you that you use to describe motion
speed measure of an object's change of position during a unit of time
weight measure of the force of gravity on an object
friction force that keeps two objects that are touching from easily sliding past each other
Created by: crandolph on 2007-03-20



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