Standard Science Primary 4 Energy

A wooden block was placed between a torch and a screen. Which of the following would cause the shadow of the block to become LARGER?

A Move the torch further away from the block.
B Use a smaller wooden block.
C Move the block closer to the torch.
D Move the screen closer to the block.
Show Worked Solution

Worked Solution

Step 1: To make a shadow larger, the object must block more light. Step 2: Moving the object (block) closer to the light source (torch) increases the area of light blocked. Step 3: This results in a larger shadow on the screen.

Correct answer: Move the block closer to the torch.

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