Which runner had a head start?

• A
• B
• C

Describe the motion

• speeding up; Negative direction

• slowing down; Negative direction

• slowing down; Positive direction

• speeding up; Positive direction

The speed of the object is changing during interval:

• A-B
• B-C
• C-D
• D-E

Which lines show a change in direction?

• Green only
• Blue and red
• orange and pink
• green and pink

Which section of this v-t graph shows constant velocity?

• AB

• BC

• EF

• GH

Acceleration is defined as the CHANGE in 

• time it takes for one place to move to another place. 
• distance of an object.
• distance divided by the time interval 
• velocity over a time period 

Which is TRUE?

• the object had a constant speed in the positive direction

• the object never stopped

• the object slowed down in the positive direction

• the object sped up in the positive direction

A car slows down from +32 m/s to +8 m/s in 4 s. The acceleration is 

• 6 m/s/s opposite the motion
• 2m/s/s in the direction of motion
• 8 m/s/s opposite the motion

A car goes from rest to 30 m/s. If it takes the car 40 seconds to reach that speed then what is the car's rate of acceleration?

• 1.33 m/s²

• 0.75 m/s²

• 10 m/s²

• 0 m/s²

What is the average velocity of the object between 10 and 15 seconds?

• 6 m/s

• 1.5 m/s

• -4 m/s

• 0 m/s