Standard Science Primary 4 Energy

A torch was shone on an opaque object. Which of the following will result in a LARGER shadow on the screen?

A Using a brighter torch bulb.
B Moving the object closer to the torch.
C Moving the object closer to the screen.
D Moving the torch further away from the object.
Show Worked Solution

Worked Solution

Step 1: Shadows are formed when light is blocked by an opaque object. Step 2: To increase shadow size, the object must block a larger angle of light. Step 3: Moving the object nearer to the source (torch) achieves this.

Correct answer: Moving the object closer to the torch.

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