Question

Name the devices or machines which convert :

(i) Electrical energy into sound energy.
(ii) Heat energy into kinetic energy (or mechanical energy).
(iii) Chemical energy into kinetic energy (or mechanical energy).
(iv) Chemical energy into heat energy.
(v) light energy into heat energy.

Answer 1

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