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Chapter 5 Science vo

TermDefinition
Motion An object’s change in position relative to a reference point.
Speed The distance traveled divided by 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 tine; an object accelerates if its speed,direction,or both change.
Force A push or pull exerted on an object in order to change the motion of the object; force has size and direction.
Newton The SI unit for force (symbol, N)
Net force The combination of all of the forces acting on an object.
Friction a force that opposes motion between two surfaces that are in contact.
Gravity A force of attraction between objects that is due to their masses.
Mass a measure of the amount of matter in an object.
Created by: Marlin12125
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