Standard Science Primary 4 Energy

Siti placed an object between a torch and a screen. She observed a dark shadow on the screen. Which of the following best explains why the shadow was formed?

A Light can pass through the object.
B The object blocked the light because light travels in straight lines.
C Light is reflected by the object.
D The screen was too far from the object.
Show Worked Solution

Worked Solution

Step 1: Recall that light travels in straight lines. Step 2: When an opaque or translucent object blocks the path of light, a shadow is formed. Step 3: Match this to the property of light traveling in straight lines.

Correct answer: The object blocked the light because light travels in straight lines.

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