Standard Science Primary 4 Energy

A wooden ball was placed between a torch and a screen. What will happen to the size of the shadow if the torch is moved further away from the ball?

A The shadow disappears.
B The shadow remains the same size.
C The shadow becomes larger.
D The shadow becomes smaller.
Show Worked Solution

Worked Solution

Step 1: Light travels in straight lines. Step 2: Moving the torch further away increases the distance light travels before being blocked. Step 3: This causes the area of blocked light on the screen to decrease in size.

Correct answer: The shadow becomes smaller.

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free