Question

Explain the transformation of energy changes taken place in a radio.

Answer 1

A radio converts electrical energy into sound energy.

This happens as follows.

1. In a radio set, electrical energy causes the diaphragm in the speaker to vibrate and produce sound.
2. So a radio first converts electrical energy into kinetic energy and then into sound energy
3. Electrical energy$\to$kinetic energy$\to$sound energy