Mon Prof Augmenté
Light Through a Tiny Hole
Age 9 · Science
A bright object shines light into a dark box through a tiny hole. The straight rays cross at the hole and make a small upside-down picture on the screen inside.
This picture is part of the full library
Every lesson is open to everyone for 7 days after it is published. This one came out on October 6, 2026: its text stays readable here, and its picture opens with a subscription.
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Age 9: open this week
Browse Age 9
In the picture
- The bright object outside the box: the source that sends light toward the hole
- The pin-sized hole in the box wall: the opening where the light rays cross
- The small upside-down image on the inner screen: the picture formed by the crossing rays
Examples
- Sunlight through a tiny gap in curtains making a flipped patch of the window on the wall.
- A dark room with a small hole in a window covering showing an upside-down view of the street outside.
Key takeaways
- Light travels in straight lines.
- When rays cross through a tiny hole, the image on the other side is upside down.
Quiz: Light Through a Tiny Hole (Age 9)
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How does light travel?
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What happens to the light rays at the tiny hole?
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What does the image on the screen inside the dark box look like?
The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.
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