# Shared Flashcard Set

## Details

EXAM STUDY TIME: Linear Motion
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13
Physics
07/24/2009

Term
 What is rate?
Definition
 A quantity divided by time is rate.
Term
 What three quantities are used to describe motion?
Definition
 Velocity, speed, and acceleration.
Term
 What is meant by motion is relative?
Definition
 Everything moves with respect to the sun and the stars.
Term
 What is speed?
Definition
 A measure of how fast something is moving.
Term
 What does the word per mean?
Definition
 Per means divided by.
Term
 What are the primary units for velocity used in this class?
Definition
 Meters/seconds (m/s)
Term
 What is instantaneous speed?
Definition
 The speed at any instant.
Term
 What is total distance covered?
Definition
 The entire number of miles covered during a trip.
Term
 What is velocity?
Definition
 Speed with a direction.
Term
 What is occurring when an object moves at a constant speed?
Definition
 The object never changes speed.
Term
 What does constant velocity mean?
Definition
 Motion with no change in speed or direction.
Term
 What is acceleration?
Definition
 The rate at which velocity is changing.
Term
 In what three ways can velocity be changes?
Definition
 Change is speed, change in direction, change of both speed and direction.
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