Advanced Science Primary 4 Energy

If an object is placed between two torches that are switched on, how many shadows will be formed on the screen behind the object?

A Two
B Four
C None
D One
Show Worked Solution

Worked Solution

Step 1: A shadow is formed for every light source that is blocked. Step [2-9]: With two torches, there are two distinct paths of light being blocked. Step [2-9]: This creates two shadows on the screen.

Correct answer: Two

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