Foundation Science Primary 6 Energy

What is the primary energy conversion that occurs in a solar-powered garden light at night?

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

Step 1: During the day, solar energy is converted to electrical energy and stored as chemical potential energy in the battery. Step [2-9]: At night, the stored chemical potential energy is converted back to electrical energy. Step [2-9]: The electrical energy is then converted to light energy by the bulb.

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

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