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Ch. 10 Holt

Motion

TermDefinition
Motion an object's change in position relative to a reference point.
Displacement the change in position of an object
Speed the distance traveled divided by the time interval during which the motion occurred
Velocity the speed of an object in a particular direction
Acceleration the rate at which velocity changes over time; an object accelerates if its speed, direction, or both change
Force an action exerted on a body in order to change the body's state of rest or motion; force has magnitude and direction.
Friction a force that opposes motion between two surfaces that are in contact
Static Friction the force that resists the initiation of sliding motion between two surfaces that are in contact and at rest
Kinetic Friction the force that opposes the movement of two surfaces that are in contact and are sliding over each other
Created by: haasem
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