How shadows form

Move the lamp and the object to observe the rays and the shadow on the wall.

Pick a shape, move the lamp ☀ and the object. Rays travel in a straight line: the object blocks the light, which forms a shadow on the wall.

Object height

5.0 cm

Shadow height

10.7 cm

Lamp-to-object distance

14 cm

Object-to-wall distance

16 cm

Try this: what happens when you move the lamp closer to the object? When you move the object closer to the wall? When you make the object bigger?

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