Solve 6 please

Solution : 

(a) A torch battery - Chemical energy into electrical energy
(b) A falling stone - Gravitational potential energy into kinetic energy 
(c) A bunsen burner - Heat energy into mechanical energy 
(d) A dynamo - Mechanical energy into electrical energy 
(e) A microphone - Sound energy into electrical energy 
(f) A loudspeaker - Electrical energy into sound energy 
(g) A pendulum - Potential energy into kinetic energy 
(h) Bicycle brakes - Kinetic energy into thermal (heat) energy 
(i) A human body - Chemical and thermal energy into mechanical energy 
(j) An electrical bell -  Electrical energy into mechanical energy 
(k) An electromagnet - Electrical energy into magnetic energy 
(l) A car crash - Kinetic energy into heat and sound energy