Standard Science Primary 4 Energy

Luke placed an opaque object between a torch and a screen. He wants to make the shadow of the object on the screen LARGER. What should he do?

A Use a brighter torch.
B Move the object closer to the torch.
C Move the screen closer to the object.
D Move the torch further away from the object.
Show Worked Solution

Worked Solution

Step 1: Shadow size is determined by how much light the object blocks. Step [2-9]: Bringing the object closer to the light source (torch) makes it block more light rays. Step [2-9]: This results in a larger shadow projected on the screen.

Correct answer: Move the object closer to the torch.

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

Start Free Trial — 7 Days Free