Q4.

(a) A torch battery is an energy resource. How is the energy stored in a torch battery?

A	as chemical energy
B	as kinetic energy
C	as potential energy
D	as thermal energy
E	as electrical energy
F	as light energy
G	as sound energy

1 mark

(b) When a torch is switched on, energy is transferred from the battery to the bulb. How is energy transferred from the battery to the bulb?

A	by chemical energy
B	by kinetic energy
C	by potential energy
D	by thermal energy
E	by electrical energy
F	by light energy
G	bysound energy

1 mark

(c) Energy is transferred from the torch bulb to the surroundings.

Choose from the following terms to complete the sentences.

electricity

light

sound

thermal transfer

(i) Energy is transferred from the torch bulb to the surroundings in a useful way by ..............light...........

1 mark

(ii) Some energy is wasted. The wasted energy is transferred from the bulb to the surroundings by ......thermal transfer..........

1 mark

(d) The torch is lifted up and put on a high shelf.

Energy is transferred to the torch as it is lifted up. The energy is stored in the torch while it stays on the shelf. What type of energy has the torch gained?

(Gravitational) potential energy

1 mark

Maximum 5 marks