Question

A train slows down on applying brakes. Which of the following depicts the energy transformation that takes place?

• A. Heat energy $\to$ Kinetic energy
• B. Potential energy $\to$ Heat energy
• C. Kinetic energy $\to$ Heat energy
• D. Heat energy $\to$ Potential energy

Answer 1

The correct option is C

Kinetic energy $\to$ Heat energy

A train possesses kinetic energy while it is in motion. When brakes are applied, frictional force is generated between the wheels and the track. This slows down the train by converting its kinetic energy into heat energy.