Standard Science Primary 6 Energy

What are the main energy conversions that take place when a battery-operated toy car moves across the floor?

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

Step 1: Identify the source (Battery = Chemical Potential). Step 2: Identify the intermediate (Circuit = Electrical). Step 3: Identify the output (Movement = Kinetic, Noise = Sound).

Correct answer: Chemical potential energy → Electrical energy → Kinetic energy + Sound energy

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