Standard Science Primary 6 Energy

What is the useful energy conversion in a battery-operated torch?

A Chemical potential energy → Electrical energy → Light energy
B Electrical energy → Heat energy
C Electrical energy → Chemical potential energy
D Chemical potential energy → Light energy
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Worked Solution

Step 1: Battery stores chemical potential energy. Step [2-9]: Circuit converts it to electrical energy. Step [2-9]: The bulb converts electrical energy into useful light energy.

Correct answer: Chemical potential energy → Electrical energy → Light energy

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