GCSE Questions: Forces
Q5. A child drops a ball. The ball hits the ground and bounces.
The graph is a velocity-time graph for the ball from t = 0.0s, when the ball was dropped, until t = 1.2s, when the ball reaches the top of its first bounce. Air resistance has been ignored.
(a) Describe the motion of the ball between points A and B on the graph.
(b) In what direction is the ball moving between points C and D on the graph?
(c) The ball and the Earth form a system.
What is meant by 'a system'?
Tick one box in the table below to answer.
(d) When the ball hits the ground, energy is transferred from the ball to the Earth.
Explain how the data in the graph shows this energy transfer.
[9 Marks TOTAL]