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### 15 Cards in this Set

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 What two groups did Aristotle divide motion? Natural and Violent motion What was natural motion? The motion of an object either in or trying to get in its natural place What was violent motion? Any motion imposed on an object by an outside sourse Is violent motion scientific? Nope - you can't test it!! muah ahahahha What was Copernicus the first to do? Show that the earth wasnt stationary With what two things did Copernicus prove the world wasn't stationary? Telescope and Mathematics Who was the first to show Copernicus' theory was possible? Galileo If a ball is pushed down a ramp and back up again, why will the ball never reach the same hight? Friction What is friction? Any force that opposes motion Describe Newtons First Law. An object at rest will remain at rest. An object in motion will remain in motion IN A STRAIGHT LINE (unless effected by outside force What is inertia determined by? Mass What is mass? The measure of how much stuff is in an object; measured in kg Is weight or mass a constant? Mass is a constant What is weight? a measure of gravity; measured in Newtons What is the formula for transferring a kg into a newton? 1kg=10N