Light_ Optics and The Eye Exam Review by huanghengdong

VIEWS: 5 PAGES: 2

									                LIGHT, OPTICS AND THE EYE EXAM REVIEW
                         Ch. 13 and Ch. 14 McDougal


1. What is focal length?
2. What does the retina do?
3. Explain nearsightedness and farsightedness. How are each of these conditions helped
   by corrective lenses?
4. Which two parts of the eye refract light?
5. How do contact lenses work?
6. Describe what type of image is formed when an object is one focal length away from a
   convex lens, two focal lengths away, more than two focal lengths away and less than
   one focal length away.
7. What is the film in a camera similar to in an eye?
8. How do parallel light rays pass through a convex lens? A concave lens?
9. Describe how light rays travel as they hit a mirror (ie: angle of incidence/angle of
   reflection).
10. Which part of the eye acts as a converging lens.
11. How do you find an image that is more than twice the focal point from a convex lens?
12. What happens to sunlight as it moves from air to water?
13. What do optical fibers do?
14. What does moving the lens of a camera do?
15. What is optics?
16. Why is light refracted?
17. What type of wave is visible light?
18. What happens when light hits a white piece of paper?
19. How does light travel through a transparent medium?
20. Where is the retina located in the eye?
21. Know all the structures and functions of the eye.
22. Be able to describe how light travels through different parts of the eye. (14.4)
23. Be able to explain and compare microscopes, telescopes, and cameras.
                LIGHT, OPTICS AND THE EYE EXAM REVIEW
                         Ch. 13 and Ch. 14 McDougal


1. What is focal length?
2. What does the retina do?
3. Explain nearsightedness and farsightedness. How are each of these conditions helped
   by corrective lenses?
4. Which two parts of the eye refract light?
5. How do contact lenses work?
6. Describe what type of image is formed when an object is one focal length away from a
   convex lens, two focal lengths away, more than two focal lengths away and less than
   one focal length away.
7. What is the film in a camera similar to in an eye?
8. How do parallel light rays pass through a convex lens? A concave lens?
9. Describe how light rays travel as they hit a mirror (ie: angle of incidence/angle of
   reflection).
10. Which part of the eye acts as a converging lens.
11. How do you find an image that is more than twice the focal point from a convex lens?
12. What happens to sunlight as it moves from air to water?
13. What do optical fibers do?
14. What does moving the lens of a camera do?
15. What is optics?
16. Why is light refracted?
17. What type of wave is visible light?
18. What happens when light hits a white piece of paper?
19. How does light travel through a transparent medium?
20. Where is the retina located in the eye?
21. Know all the structures and functions of the eye.
22. Be able to describe how light travels through different parts of the eye. (14.4)
23. Be able to explain and compare microscopes, telescopes, and cameras.

								
To top