10 minutes maximum! Can you do it in 5?

Q 1-3:

Here are 4 distance-time graphs showing the movement of some athletes: Which of these shows...

1. an athlete moving away at constant speed?

2. a stationary athlete?

3. an athlete slowing down and stopping?

4. The speed or velocity of any object can be measured in ...

• A. m/s2
• B. N
• C. m/s
• D. m

Q5-7:

Here are some more graphs, showing velocity-time. Which of these shows ...

5. a constant velocity?

6. a uniform deceleration?

7. a falling tennis ball reaching terminal velocity?

8. Velocity-time graphs can be used to calculate the acceleration and the distance travelled. Which row in the table below shows how is this done?

 To Find The Distance: To Find The Acceleration: A Area under the line Length of line B Length of line Gradient of line C Gradient of line Length of line D Area under the line Gradient of line

This graph shows a cyclist's velocity during the first 20 seconds of a bike race:  9. What was the acceleration of the cyclist?

• A. 0.6 m/s2
• B. 1.6 m/s2
• C. 120 m/s2
• D. 240 m/s2

10. How far did the cyclist travel in the first 20s?

• A. 0.6 m
• B. 1.6 m
• C. 120 m
• D. 240 m