# Shared Flashcard Set

## Details

Chapter 2 - Linear Motion
Vocabulary
11
Physics
10/13/2011

Term
 acceleration
Definition
 the rate at which velocity is changing; the change may be in magnitude, direction, or both
Term
 average speed
Definition
 path distance divided by time interval
Term
 elapsed time
Definition
 the time that has passed since beginning of an event
Term
 free fall
Definition
 motion under the influence of gravitational force only
Term
 instantaneous speed
Definition
 speed at any instant of time
Term
 rate
Definition
 how fast something happens
Term
 relative
Definition
 regarded in relation to something else; depends on your point of view, or frame of reference
Term
 time
Definition
 the duration between two events
Term
 uniform acceleration
Definition
 acceleration that does not change
Term
 Speed
Definition
 a scalar quantity (magnitude only) how quickly an object moves or covers a "distance"
Term
 Velocity
Definition
 a vector quantity (magnitude and direction) speed in a given direction, rate of change of position (aka displacement)
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