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# F & M Test

### Forces and Motion Test

TermDefinition
inertia the tendency of an object to stay at rest or in motion
momentum a measure of how difficult it is to stop an object
velocity speed in a particular direction
acceleration the change in velocity divided by the time it takes for the change to occur (speeding up or slowing down)
centripetal force any force that causes an object to move in a circular path - PULLS EARTH IN A CIRCULAR MOTION AROUND THE SUN
weight a measure of the pull of gravity on an object
friction the force that opposes the motion of an object
gravity the force of attraction between all objects in the universe
Newton's 1st Law of motion an object at rest stays at rest or an object in motion stays in motion unless an unbalanced force acts upon it.
Newton's 2nd Law of motion an object acted upon by a force will accelerate in the direction of the force - Force = Mass x Acceleration
Newton's 3rd Law of motion for every action force there is an equal and opposite reaction force
Deceleration negative acceleration
Created by: cbeltrani