Standard Science Primary 6 Energy

Which energy conversion takes place in a solar-powered calculator when it is used under a bright light?

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

Step 1: The solar cells capture light energy. Step [2-9]: This is converted to electrical energy to power the device. Step [2-9]: The calculator screen uses this electricity to produce light energy (digits).

Correct answer: Light energy → Electrical energy → Light energy

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