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Motion & Forces

Unit 1 Lesson 1-4

TermDefinition
Position The location of an object
speed the distance traveled divided by the time interval during which the motion occurred
reference point a location to which another location is compared
vector q quantity that has both size and direction
motion an object's change in position relative to a reference point
velocity the speed of an object in a particular direction
acceleration the rate at which velocity changes over time; and object accelerates if its speed, direction, or both change
centripetal acceleration the acceleration directed toward the center of a circular path
force a push or pull exerted on an object in order change the motion of an object
inertia the tendency of and object to resist a change of the object; force has size and direction
net force the combination of all of the force acting on an object
gravity a force of attention between objects that is due to their masses
free fall the motion of a body when only the force of gravity is gravity is acting on the body
orbit the path that a body follows as it travels around another body in space
Created by: 18halbrookc0330
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