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Motion and Forces

Unit 1, Lessons 1-4

TermDefinition
position Describes the location of an object.
reference point A location to which you compare other locations.
motion A change in position over time.
speed A measure of how far something moves in a given time.
vector A quantity that has both size and directions.
velocity Speed in a specific direction.
acceleration The rate at which velocity changes.
centripetal acceleration Acceleration in circular motion.
force Push or pull.
net force The combination of all the forces acting on an object.
Inertia The tendency of all objects to resist a change in motion.
gravity A force attraction between objects due to their mass.
free fall When gravity is pulling it down and no other forces are acting on it.
orbit When an object travels around another object in space.
Created by: 18navarroa0807
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