Motion Graphs

This is a velocity-time graph.  What is the object doing in segment C?

• Positive acceleration
• Negative acceleration
• Constant Velocity
• Not moving

What is happening at E?

• Stationary
• Accelerating
• Fast steady speed; moving away from the starting position
• Steady speed; returning to start position

Which runner won the race?

• A
• B
• C

What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

What does this graph represent?

• Constant speed
• Acceleration
• Not moving

In which of the following graphs below are both runners moving at the same speed?

• 
• 
• 
• 

Object is...

• (1) speeding up,

  (2) constant speed,

  (3) speeding up

• (1) constant speed.

  (2) stopped,

  (3) constant speed

Object ...

• accelerates... then goes constant speed... then accelerates again

• goes constant speed... stops... goes constant speed

At what point is the speed the greatest?

• C-D

• B-C

• A-B

• D-E

Acceleration occurs when an object changes its speed or ______.

• direction
• force
• inertia
• mass