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Motion and Forces

Unit 1 lesson 1-4

TermDefinition
position describes the location of an object
reference point location to which you compare other locations
motion is a change position in over time
speed how far something moves n a given amount of time
vector is a quantity that has both size and direction
velocity is speed specific direction
acceleration is the rate at which velocity changes
centripetal acceleration acceleration in circular motion
force is simply a push or a pull
net force combination of all the forces
inertia us the tendency of all objects to resist a change in motion
gravity is a force of attraction between objects due to their mass
free fall when gravity is pulling down and no others forces are acting on it
orbit when it travels around another object
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