The older car and the ‘car of the future’ are both fitted with identical engines and they go
20 times around the race-track at a constant 50 m.p.h. The car of the future uses less
petrol.
Tell me about energy in this situation (focus on the cars)
19. Even if one of the cars ran out of fuel, it would still have energy because it is moving.
true ( ) false ( ) don’t understand ( ) not sure ( )
20. Petrol is energy.
true ( ) false ( ) don’t understand ( ) not sure ( )
21. Some of the cars’ energy of movement goes into the surrounding air.
true ( ) false ( ) don’t understand ( ) not sure ( )
22. Although the fuel will be used up, the energy can be recovered for use in the future.
true ( ) false ( ) don’t understand ( ) not sure ( )
23. Whatever the results of the test, the most efficient car must be the one which takes you
from A to B most quickly.
true ( ) false ( ) don’t understand ( ) not sure ( )
24. For the sake of the environment, it would be better if the ‘car of the future’ used a
different source of energy.
true ( ) false ( ) don’t understand ( ) not sure ( )