Standard Science Primary 4 Energy

A wooden block was placed between a torch and a screen. Which of the following describes the shadow formed?

A A dark shadow with the same shape as the block.
B No shadow because wood is transparent.
C A bright spot of light on the screen.
D A faint shadow because wood is translucent.
Show Worked Solution

Worked Solution

Step 1: Wood is an opaque material. Step 2: Opaque materials block light completely. Step 3: When light is blocked, a dark shadow of the same shape is formed on the screen.

Correct answer: A dark shadow with the same shape as the block.

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