SNC 2P1 Optics Test Review
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SNC 2P – Optics Test Review
Name: Test Date:
Lesson # 1
1. Where does the Earth get most of its light?
2. What are the four properties of light?
I.
II.
III.
IV.
3. Using the line below, write in the types of energy found on the electromagnetic spectrum, in order of lowest energy to highest energy.
4. Give a use for each of the following types of light:
Energy Use Microwaves
Radio waves
Infrared light
Visible light
UV light
X-rays
Gamma rays
5. What are the three primary colours of light?
I. II. III.
6. What are the three secondary colours of light?
I. II. III.
7. What is the difference between a luminous and non-luminous light source?
Luminous:
Non-Luminous: Lesson # 2
8. Describe the following sources of light work.
Source of Light How it Works Example of Where its Used
Incandescence
Electric Discharge
Phosphorescence
Fluorescence
Chemiluminescence
Bioluminescence
Triboluminescence
LEDs
9. What are two differences between laser light and regular white light?
I.
II.
10. Compare Incandescence and Fluorescence in the table below:
Incandescence Fluorescence Energy Efficient (yes or no)
Length of Use (shorter vs. longer)
Cost (cheap vs. expensive)
Disposal Methods (garbage or special disposal)
11. What are two reasons why animals use bioluminescence?
I. II. Lesson # 3
12. When light hits a substance, three things can happen, which are that light can:
I. II. III.
13. Use a diagram to show the difference between an umbra and a penumbra.
14. Use a diagram to show the difference between regular and diffuse reflection.
Lesson # 4
15. Using the plane mirror diagram below, draw in the normal, determine the angle of incidence, and draw the reflected ray.
16. Emergency vehicles make use of lateral inversion when painting words and pictures on the hoods. Why do you think this is so?
17. How is reflection used in stealth technology?
Lesson # 5
18. Another name for a concave mirror is a mirror, and another name for a convex mirror is a mirror.
19. List two uses of concave mirrors.
I. II.
20. List two uses of convex mirrors.
I. II. 21. Draw a ray diagram and image for the objects in the following concave mirrors, and describe then in terms of SALT. S: a) A:
● ● ● L: C F V T:
b) S:
A: ● ● ● C F V L:
T:
c) S:
A: ● ● ● C F V L:
T:
22. Draw a ray diagram and image for the objects in the following convex mirrors, and describe them in terms of SALT. S:
A:
● ● ● L: V F C T:
23. An object is placed 8 cm away from a concave mirror. The image produced is 24 cm away. What is the magnification of the mirror? Show all your work.
24. An image formed in a convex mirror is 3 mm tall. The object itself is 10 mm tall. What is the magnification of the mirror? Show all your work. 25. A mirror’s magnification is 5. If an object is 20 m tall, how tall is the image it forms? Show all your work.
26. An image formed by an object is seen 28 cm away from a concave mirror with a magnification of 4. How far is the object away from the mirror? Show all your work.
Lesson # 6
27. What is refraction and why does it happen?
28. When light travels from a slower to a faster medium, it bends from the normal, and from faster to slower, it bends the normal.
29. Explain how a two-way mirror works.
30. Summarize how each of the following optical phenomenon work, using optical vocabulary.
Concept How it Works
Total Internal Reflection
Apparent Depth
The Mirage The Rainbow
Lesson # 7
31. What is the difference between a curved mirror and a curve lens?
32. Fill the following table about optical devices, including how far the object must be from the lens, and how it works.
Optical Device Type of Lens Distance from Focus SALT of Image Produced
Camera
Movie Projector
Magnifying Glass
Telescope
33. Your eye contains a lens.
34. Describe the function of each of the following parts of the eye:
I. cornea
II. pupil
III. iris
IV. lens
V. retina VI. optic nerve
35. Fill in the following table on vision problems:
Problem Scientific Name Where Light Falls Corrective Lens Needed
Far-sightedness
Near-sightedness
36. What is the purpose of laser eye surgery?
37. What is the difference between rod and cone cells?
Rod Cells:
Cone Cells: