End of topic questions continued 10. How could you tell from a distance–time graph whether the object is moving away from you or towards you? (2 marks) 11. The graph shows a distance–time graph for a journey. 1200 distance (m)
1000 800 600 400 250
200 0
20 40 60 80 100 120 140 time (s)
a) What does the graph tell us about the speed of the car between 20 and 60 (1 mark) seconds? b) How far did the car travel between 20 and 60 seconds?
(1 mark)
c) Calculate the speed of the car between 20 and 60 seconds. (1 mark)
d) What happened to the car between 80 and 100 seconds? (1 mark)
12. Look at the velocity–time graph for a toy tractor. a) Calculate the acceleration of the tractor from A to B.
(1 mark)
b) Calculate the total distance travelled by the tractor from A to C. (2 marks)
B
velocity(m/s)
1.5 1.0
C
A 0
0.5
1.0
1.5 2.0 time (s)
2.5
3.0
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PRINCIPLES OF PHYSICS
0.5
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