Standard Science Primary 4 Energy

Ravi placed a wooden block between a torch and a screen. He noticed a dark shadow on the screen. Which property of the wooden block caused this?

A The wooden block is a good conductor of heat.
B The wooden block does not allow light to pass through.
C The wooden block reflects all the light.
D The wooden block is transparent.
Show Worked Solution

Worked Solution

Step 1: Light travels in straight lines. Step 2: A shadow is formed when an opaque or translucent object blocks the path of light. Step 3: Wood is opaque and blocks light, resulting in a shadow.

Correct answer: The wooden block does not allow light to pass through.

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