Standard Science Primary 6 Energy

Study the circuit diagram. Which of the following shows the energy conversion that occurs when the switch is closed?

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

Step 1: Identify the energy source (Battery = Chemical Potential Energy). Step [2-9]: Identify the flow (Electrical Energy through wires). Step [2-9]: Identify the output (Bulb = Light + Heat Energy).

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

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