A deer crossing the road causes a driver to apply the brakes and bring her car to a screeching halt. The deer jumps away, unharmed.
Which statement describes evidence that energy is conserved?
A. The decrease in the kinetic energy of the car results in an increase in the kinetic energy of the deer.
B. The chemical energy of the gasoline in the car increases as the kinetic energy of the car decreases.
C. As the brakes are applied, the kinetic energy of the driver's foot increases the kinetic energy of the car.
D. As the car comes to a stop, its kinetic energy transforms into thermal energy and sound energy.
D. is correct.