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2 Motion Ch. 2

Pearson Interactive Science

TermDefinition
force any push or pull
motion a change in position of an object
reference point a place or object used to determine if an object is in motion
acceleration a change in speed or direction that an object moves
speed a measure of how fast an object moves
velocity a measure of how fast an object moves and the direction it is moving
gravity a force that pulls all objects toward each other that is due to their masses
mass a measure of the amount of matter in an object
weight a measure of the force of gravity on an object
friction a force that opposes motion between two surfaces that are in contact
Created by: Traci_Fox
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