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ATS-Science 8

Matter vocabulary

TermDefinition
motion An object's changes in position relative to a reference point.
speed The distance traveled by an object divided by the time interval that it took that object to travel that distance.
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.
force A push or a 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.
Created by: glink
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