1. Light Lesson 6 Key Concepts

2. The image produced by a pinhole camera is reversed and inverted.
Lesson 6 Key Concepts - #1
The image produced by a pinhole camera is reversed and inverted.

3. Lesson 6 Key Concepts - #2
Images produced by pinhole cameras can be explained in terms of light rays traveling in straight lines.

4. Lesson 6 Notes

5. Mo Ti Chinese Philosopher 5th Century B.C.
Said light travels in straight lines
1st to record inverted image formed when light from an object passes through a pinhole and falls on a screen

6. B.
Pinhole camera used to observe the Sun, as a drawing aid for artists, and for photography

7. C.. How is an image formed? Some rays pass through the pinhole
Because light travels in a straight line, some of the rays cross over
3-D image forms at the pinhole so the image looks inverted (reversed top to bottom and left to right)

8. D. Facts
As distance increases between the pinhole and the screen, the size of the image increases as well.
1 pinhole yields 1 image
4 pinholes yields 4 images
If the holes are close together, the images may overlap and blur
Blurred areas have brighter light
If you increase the hole size, the image will be larger, brighter, and blurrier