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Motion

Mrs. Anhold's Physical Science Class

TermDefinition
velocity the speed in a given direction
speed the rate of motion
length the distance of anything as measured from end to end
motion the change of position
distance the amount of space between two things
acceleration speeding up
deceleration slowing down
rotation spinning or turning around
vibrating things that move back and forth
spinning to turn around rapidly
constant acceleration a steady increase in speed
gravity the force of attraction between any two things made of matter
friction the rubbing of the surface of one object against another
air resistance resistance created on an object moving through the air
mass a measure of how much matter is within something
matter the stuff that any physical object is made of
force a push or pull
gravity the force of attraction between any two things made of matter
exerting to put into use
friction the rubbing of the surface of one object against another
Newton's 1st law objects in motion stay in motion and objects at rest stay at rest unless acted on by an outside force
inertia the tendency of an object to resist any change in motion (1st law)
Newton's 2nd law an object's acceleration depends on the objects mass and the size of the force acting on it. (F=M x A)
Newton's 3rd law for every action there is an equal and opposite reaction
Created by: anhold133