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Motion, Forces, & Energy
Unit 1: Gravity & Motion Lessons 1, 2, & 3 ONLY
11
Science
7th Grade
05/19/2015

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Term
Position
Definition
This describes the location of an object.
Term
Reference point
Definition
This is a location to which you compare other locations.
Term
Motion
Definition
This is a change in position over time.
Term
Speed
Definition
This is the measure of how far something moves in a given amount of time.
Term
Vector
Definition
This is a quantity that has both size & direction.
Term
Velocity
Definition
This is speed in a specific direction.
Term
Acceleration
Definition
This is the rate at which velocity changes.
Term
Centripetal force
Definition
This is acceleration in a circular motion.
Term
Force
Definition
This is a push or pull.
Term
Net force
Definition
This is the combination of all forces acting on an object.
Term
Inertia
Definition
This is the tendency of all objects to resist a change in motion.
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