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Grade 5 F-2 Sci. Def

Chapter 2 Motion

TermDefinition
position An object's place
speed A measure of the distance an object moves in a given amount of time
velocity An object's speed in a particular direction
acceleration A change in motion caused by unbalanced forces or a change in velocity
momentum A measure of how hard it is to slow down or stop an object
inertia The property of matter that keeps it moving in a straight line or keeps it at rest
action force The first force in the third law of motion
reaction force The force that pushes or pulls back in the third law of motion
orbit The path one body in space takes as it revolves around another body; such as Earth as it revolves around the sun
law of universal gravitation Law that states that all objects in the universe are attracted to all other objects
Created by: scscolts
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