Foundation Science Primary 4 Energy

Which of the following groups consists ONLY of sources of light?

A The Moon, the Sun, a lit torch
B A lit bulb, the Sun, a fire
C A mirror, the Moon, a lit candle
D The Sun, a mirror, a lit candle
Show Worked Solution

Worked Solution

Step 1: Identify the definition of a light source (an object that produces its own light). Step [2-9]: Evaluate the options. The Sun, lit bulbs, and fire produce light. Step [2-9]: Mirrors and the Moon only reflect light.

Correct answer: A lit bulb, the Sun, a fire

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