Advanced Science Primary 6 Energy

When a television is switched on, which of the following is the MAIN energy conversion taking place?

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

Worked Solution

Step 1: A television uses electrical energy from a power source. Step [2-9]: It produces a screen image (light) and audio (sound). Step [2-9]: The components also become warm during operation (heat).

Correct answer: Electrical energy → Light energy + Sound energy + Heat energy

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