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Speed_Velocity_Acceleration II
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Terms in this set (16)
velocity
the measure of speed and direction
vector
velocity is a vector that is represented by the arrow
arrow
the arrow represents speed, its direction is represented by where the arrow is pointing such as up or down, left or right, north-south-east-west
same line length I
if a line with an arrow is pointing different ways but the lines are the same length then the objects are moving at the same speed in different directions
same line length II
if a line with an arrow is pointing the same way but the lines are the same length then the the objects are moving at the same speed in the same direction
different line length I
if a line with an arrow is pointing the same way but the lines are the different lengths then the objects are moving at diffrent speeds in the same direction
different line length II
if a line with an arrow is pointing different ways but the lines are the different lengths then the objects are moving at diffrent speeds in different directions
Acceleration
is the measure of change of velocity of a moving object
acceleration
shows how quickly velocity changes
acceleration reflects
changes in speed, and/or direction
acceleration is a vector
because it includes speed and direction
acceleration is both
speeding up and slowing down
deceleration
is what we call slowing down
negative acceleration
is what we call decleration or slowing down
change of direction but not speed
is acceleration
calculate acceleration without directional change
by dividing velocity by time
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