Standard Science Primary 4 Energy

Ravi tested three materials, X, Y, and Z, by placing them between a torch and a light sensor. The results are shown in the setups below. Which statement is correct?

A Material Y allows the most light to pass through.
B Material X is translucent.
C Material X is more transparent than Material Y.
D Material Z is opaque.
Show Worked Solution

Worked Solution

Step 1: Setup Z shows 0 units on the light sensor. Step 2: 0 units means no light passed through the material. Step 3: A material that allows no light to pass through is opaque.

Correct answer: Material Z is opaque.

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