Standard Science Primary 6 Energy

What is the energy conversion in a hydroelectric power station?

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

Step 1: Water stored high up has gravitational potential energy. Step [2-9]: Falling water has kinetic energy. Step [2-9]: Turbines and generators convert kinetic energy into electrical energy.

Correct answer: Potential energy → Kinetic energy → Electrical energy

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