The matter that makes up the car increases. The amount of useful energy decreases. The efficiency of the car increases. The amount of heat energy decreases.
As a car burns fuel, a transformation from chemical to mechanical energy takes place. What is the most likely result of the fuel burning?

Options:
- The matter that makes up the car increases.
- The amount of useful energy decreases.
- The efficiency of the car increases.
- The amount of heat energy decreases.

The amount of useful energy decreases.