It is suggested that the power supplied to an external resistor, R, is maximum when its
resistance is equal to the internal resistance of the supply. Describe how this hypothesis
could be tested experimentally. (5 marks)
For paper we did - anyone who didn't answer that question, here it is again
The temperature of the 10 cm diameter ball referred to in Question 2 may affect the
height to which it bounces. Describe an experiment, based on your experiment in
Stage 1, which would enable you to investigate whether or not temperature does affect
the height of the bounce. You should consider safety issues and the reduction of
random errors in this experiment. (5 marks)
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