Chapter 6, Problem 7RAT

When a hybrid car brakes to a stop, much of its kinetic energy is transformed to

(a) heat.

(b) work.

(c) electric potential energy.

(d) gravitational potential energy.

To determine

The correct option for the statement “When a hybrid car brakes to a stop, much of its kinetic energy is transformed to”.

Answer to Problem 7RAT

The correct option for the statement “When a hybrid car brakes to a stop, much of its kinetic energy is transformed to” is option (c).

Explanation of Solution

Hybrid electric vehicles get power by an internal combustion engine and an electric motor, which uses energy stored in batteries.

In a hybrid car, most of the kinetic energy is converted into electric potential energy. Another way to slow a vehicle, by shifting the vehicle to low gear and the speed of car decreases. Today's hybrid cars do the same and transform braking energy to electric potential energy. When a hybrid car applies brake to stop, much of its energy is transformed into electric potential energy.

Conclusion:

Therefore, the correct option for the statement “When a hybrid car brakes to a stop, much of its kinetic energy is transformed to” is option (c).