Standard Science Primary 6 Energy

When a battery-operated torch is switched on, what is the main energy conversion taking place?

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

Step 1: Batteries store chemical potential energy. Step 2: When the circuit is closed, it converts to electrical energy. Step 3: The bulb then converts electricity into light and heat.

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

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