Question

Name the devices or machines which convert:
(i) Electrical energy into sound energy.
(ii) Chemical energy into mechanical energy.
(iii) Chemical energy into heat energy.
(iv) Light energy into heat energy.

Answer 1

(i) A speaker in radio and television converts electrical energy into sound energy.
(ii) A car engine converts chemical energy into mechanical energy.
(iii) A gas stove converts chemical energy into heat energy.
(iv) A solar water heater converts light energy into heat energy.