Advanced Science Primary 6 Energy

What is the main energy conversion in a hydroelectric power station?

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

Step 1: Water stored at a height has GPE. Step [2-9]: Falling water turns a turbine (Kinetic). Step [2-9]: The generator converts kinetic energy into electrical energy.

Correct answer: Gravitational potential energy → Kinetic energy → Electrical energy

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