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# Motion

### Motion Vocabulary

TermDefinition
Motion The changing of position or location
Force Making things move by pushing or pulling
Inertia A property that all things have because that they have mass
Acceleration An increase in the rate or speed of something
Gravity A force of attraction between objects that have mass
Friction A force that happens when objects rub against one another
Air Resistance A friction-like force that opposes motion of objects that move through air
Speed A distance traveled per unit of time
Velocity The speed of an object in one direction
Sir Isaac Newton Scientist who created 3 Laws of Motion
Newton's 1st Law An object in motion stays in motion; an object at rest stays at rest unless acted on by an outside force
Newton's 2nd Law A force, acting on an object, will change its velocity by changing either its speed or its direction or both.
Newton's 3rd Law For every force and action, there is an equal and opposite reaction.
Created by: NorthEvenson

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