Foundation Science Primary 6 Energy

Which of the following shows the correct energy conversion in a solar-powered garden light at night?

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

Step 1: During the day, solar energy is converted to chemical potential energy in the battery. Step [2-9]: At night, the battery (chemical potential energy) provides electrical energy. Step [2-9]: The bulb converts electrical energy into light energy.

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

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