Linear Motion Quiz Flashcards
What is a Scalar
Only has magnitude
(Distance & average speed)
What is a Vector
Has magnitude and direction (+/-)
(Displacement, Average velocity, acceleration)
Average speed equation
Distance/time
Average velocity equation
Displacement/time
Acceleration equation
Velocity/time
How to find distance
Add all described distances
How to find displacement
Subtract distances
Look at photos for graphs
Look at photos for graphs
Position/time graph — slope = what
Velocity
Flat = not moving
Positive = constant velocity +
Negative = constant velocity -
Exponential = speeding up
Velocity/time graphs — slope = what
Acceleration
At 0 = not moving
Flat = constant velocity
Positive = speeding up
Negative = slowing down (?)
Negatives!!!!
Negatives!!!!
Remember that slowing down has opposite signs of velocity vs acceleration
Remember that slowing down has opposite signs of velocity vs acceleration
Velocity/time graph
Positive direction
Above x-axis
Velocity/time graph
Negative direction
Below x-axis
Velocity/time graph
Negative direction
Below x-axis
Velocity/time graph
Stopped
At x-intercepts
Velocity/time graph
Slowing down in positive direction
Negative slope above x-axis
Velocity/time graph
Speeding up in positive direction
Positive slope above x-axis
Velocity/time graph
Speeding up in positive direction
Positive slope above x-axis
Velocity/time graph
Slowing down in negative direction
Positive slope below x-axis
Velocity/time graph
Slowing down in negative direction
Positive slope below x-axis
Velocity/time graph
Speeding up in negative direction
Negative slope below x-axis
Position/time graph
Constant velocity in positive direction
Linear positive slope
Position/time graph
Constant velocity in negative direction
Linear negative slope
