Advanced Science Primary 6 Energy

A solar-powered street lamp has a battery that is charged during the day and powers the light at night. What is the energy conversion during the DAY?

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

Step 1: During the day, solar panels capture Light energy from the sun. Step [2-9]: This is converted to Electrical energy. Step [2-9]: The electrical energy is then stored in the battery as Chemical Potential Energy for later use.

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

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