Speed, Acceleration, Graphs, Momentum, Stopping Distances 
1. What unit should be used when measuring power? 

2. "Whenever 2 objects interact, the forces between them are equal and opposite". This is:
 A. Newton's First Law
 B. Newton's Second law
 C. Newton's Third law
 D. not one of Newton's Laws


3. Newton's 3rd law is all about forces. Which of these is a clear demonstration of this law?
 The recoil of a gun
 An apple falling to the ground
 The force of gravity on all objects
 A comet would travel in a straight line if there was no gravity


4. Which of these speeds might be typical for a bicycle?
 A). 0.6 m/s
 B). 6 m/s
 C). 60 m/s
 D). 600 m/s


5+6: This motorbike moves along a road at 25m/s.
Calculate .. 

5. The distance moved in 50s.
 A). 2 m
 B). 0.5 m
 C). 125 m
 D). 1.25 km


6. The time taken to travel 2 kilometres.
 A). 4 s
 B). 80 s
 C). 0.08 s
 D). 40 s


7. Which of these 4 distance (s) time (t) graphs shows a horse moving at constant velocity?


8. Which of these is the correct formula for acceleration ?
 A). change in velocity x time taken
 B). change in velocity / time taken
 C). velocity x time taken
 D). velocity / time taken


9. A train accelerates from 10 m/s to 50 m/s in 20 seconds. The acceleration is:
 A). 2 m/s^{2}
 B). 2.5 m/s^{2}
 C). 800 m/s^{2}
 D). 1000 m/s^{2}


10. To increase the momentum of a toy car, which two quantities must be increased?

1st Quantity 
2nd quantity 
A. 
mass 
velocity 
B. 
weight 
acceleration 
C. 
acceleration 
mass 
D. 
mass 
force 


1114: The velocity  time graph shows the journey of a bus as it moves away from a road junction.
What quantity is shown by..... 

11. The gradient of line A? 

12. Line B? 

13. The area under the line? 

14. The gradient of line C? 

