Standard Science Primary 6 Energy

What is the main energy conversion that occurs in a television when it is switched on?

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

Worked Solution

Step 1: Identify the input energy (Electricity from the wall socket). Step 2: Identify the outputs (The screen glows, speakers produce noise, and the device warms up). Step 3: Map to energy forms: Light, Sound, and Heat.

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

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