Energy stores and transfersIB MYP Physics: Mind map

Exam questions on Energy stores and transfers

1. A student in Mumbai rides a bicycle to the top of a hill, then freewheels down it without pedalling before braking to a stop at the bottom.
   Describe the energy changes as the student freewheels down the hill.2 marks
2. A hand torch contains a battery that lights a small lamp. After a few minutes the casing of the lamp feels warm.
   Write an energy chain for the torch, naming the stores and the transfers.2 marks
3. A student drops a tennis ball from heights of 0.50, 1.00, 1.50 and 2.00 m onto a hard floor and measures the height of the first bounce each time. The bounce heights are 0.32, 0.64, 0.95 and 1.30 m.
   Describe the trend in the results and calculate the bounce height as a percentage of the drop height for the 1.00 m drop.3 marks