Chemistry, 30.03.2020 21:58 autumnplunkett09

A car is traveling down a level street at 30 mph. As it approaches a red light, the driver presses the brake pedal. This causes
brake pads to squeeze against the wheels and stop the car.

Position A
30 mph

Position B
15 mph

Position C
0mph

According to the law of conservation of energy, what happens to the energy of the car as it travels from position A to position C?

A. Position C has the most energy because the brakes transformed all of the kinetic energy to thermal energy

B.
The total amount of energy remains the same, but it is transformed from kinetic energy to thermal energy as the
brakes are applied.

C. Position A has the most energy because the kinetic energy is greatest when the car is moving fast.

D. Position B has the most energy because the car has kinetic and thermal energy while slowing down.

Answers: 2

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A car is traveling down a level street at 30 mph. As it approaches a red light, the driver presses t...

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