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PhysicalScience5

QuestionAnswer
Motion An object's change in position over time when compared with a reference point
Speed The rate at which an object moves; speed depends on the distance traveled and the time taken to travel that distance
Velocity The speed of an object in a particular direction
Acceleration The rate in which velocity changes
Force A push or pull
Newton Unit used to express force
Net Force The force that results from combining all the forces exerted on an object
Friction The force that opposes motion between two surfaces that are touching
Gravity A force of attraction between objects that is due to their masses
Weight A measure of the gravitational force exerted on an object, usually the earth
Mass The amount of matter that something is made of
Created by: coachrj
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