A student in Barbados investigates energy transformations in a torch (flashlight). Which energy transformation occurs when the torch is switched on?

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Question

A student in Barbados investigates energy transformations in a torch (flashlight). Which energy transformation occurs when the torch is switched on?

Accepted Answer

Chemical energy → electrical energy → light energy — Award 1 mark for correct sequence. The battery stores chemical energy which is converted to electrical energy in the circuit, then to light energy in the bulb. A is incorrect — reverses the sequence. C and D are incorrect — chemical energy in the battery is the source, not an intermediate form.

Answer

Light energy → electrical energy → chemical energy

Answer

Chemical energy → electrical energy → light energy

Answer

Electrical energy → chemical energy → light energy

Answer

Light energy → chemical energy → electrical energy

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