Book of Optics

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/book-of-optics

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. Who wrote Book of Optics?Ibn al-Haytham (965 – c. 1040 AD)
2. What is the original language?Arabic
3. What is the latin title?De Aspectibus or Perspectiva
4. Why did Ibn al-Haytham change the way people thought about vision?He proved that vision comes from light that enters the eye, not from the eye sending out rays. He did many experiments and used math to show that light goes straight and the eye’s lens focuses it.
5. How does the camera obscura work, according to the Book of Optics?In the camera obscura, a small hole lets light from outside shine into a dark room. The light makes an upside‑down picture of the outside scene on the wall, showing how light travels in straight lines.

Rectilinear Propagation of Light: The principle that light travels in straight lines through a uniform medium.
Camera Obscura: A darkened enclosure projecting an inverted image of external scenes through a small aperture.
Empirical Evidence: Information gained through observation and experimentation rather than theory alone.
Quartic Equation: A polynomial equation where the highest power of the variable is four.