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Chapter 5 vocabulary

Science vocabulary

Motion An objects change in position relative to a reference point.
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 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 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 two objects that is due to their masses.
Weight A measure of gravitational force exerted on an object; its value can change with the location of the object in the universe.
Mass A measure of the amount of an object
Created by: Luke1416