Question

Name the energy transfers which occur when :

Figure

(a) an electric ball rings
(b) someone speaks into a microphone
(c) there is a picture on a television screen
(d) a torch is on

Answer 1

(a) An electric bell converts electrical energy to sound energy.
(b) A microphone converts sound energy to electrical energy.
(c) A television screen converts electrical energy into light energy and heat energy.
(d) A torch converts electrical energy of the battery into light and heat energy.