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Objective – Describe how light can be produced, reflected, refracted, and separated into visible light of various
colors.
Name _____________________________________________________________
Light and Optics Text Assignment
Chapter Vocabulary
Match the term with its definition.
_____1. Cornea
_____2. Law of reflection
A. A light-sensitive membrane at the back of the inside
of the eye.
B. A transparent membrane that covers the eye.
_____3. Medium
C. Light hitting and bouncing off an object.
_____4. Pupil
D. Something through which light travels.
_____5. Reflection
_____6. Refraction
_____7. Retina
E. The angle of incidence equals the angle of reflection.
F. The bending of light when it passes through a liquid
G. The circular opening in the iris of the eye that
controls how much light enters the eye.
4.1 – Mirrors Form Images by Reflecting Light (pgs. 113-117)
8. This is the study of visible light and the ways in which visible light interacts with the
eye to produce vision.
a. Optics
b. Perception
c. Range of view
d. Reflection
9. Identify optical tools. (There are two answers to this question.)
a. Homing devices
b. Microscopes
c. Telescopes
d. Windows
10. Light hitting and bouncing off an object like a mirror.
a. Reflection
b. Refraction
~1~
Objective – Describe how light can be produced, reflected, refracted, and separated into visible light of various
colors.
11. According to the law of reflection, a light ray striking a mirror…
a. continues moving through the mirror in the same direction.
b. moves into the mirror at a slightly different angle.
c. bounces off the mirror towards the direction it came from.
d. bounces off the mirror at the same angle it hits.
Use the diagram to answer questions #12 – #14.
B
A
60o
C
12. Identify angle A.
a. angle of reflection.
b. angle of refraction.
c. angle of incidence.
13. Identify angle B.
a. angle of reflection.
b. angle of refraction.
c. angle of incidence.
14. The measurement of angle c is _____o. (Enter a number.
4.2 – Lenses Form Images by Refracting Light (pgs. 119-123)
15. When sunlight strikes a window… (There are two answers to this question.)
a. Some rays reflect off the glass.
b. All rays reflect off the glass.
c. Some rays continue through the glass, but their direction is slightly changed.
d. All rays continue through the glass, but their direction is slightly changed.
~2~
Objective – Describe how light can be produced, reflected, refracted, and separated into visible light of various
colors.
16. ______________ occurs when a wave strikes a new medium.
a. Reflection
b. Refraction
17. Refraction occurs because one side of the wave reaches the new medium slightly
before the other side does.
a. True
b. False
Use the diagram to answer questions #18 & #19.
B
A
18. Waves moving at an angle into a thinner medium turn away from the normal.
a. Angle A
b. Angle B
19. Waves moving at an angle into a denser medium turn towards the normal.
a. Angle A
b. Angle B
20. Water droplets cannot separate white light into the colors of the rainbow
(spectrum).
a. True
b. False
~3~
Objective – Describe how light can be produced, reflected, refracted, and separated into visible light of various
colors.
21. This color appears at the top of a rainbow because it is coming from higher drops.
This color appears at the bottom of a rainbow because it is coming from lower drops.
(There are two answers to this question.)
a. Blue
b. Green
c. Indigo
d. Orange
e. Red
f. Violet
g. Yellow
~4~
Objective – Describe how light can be produced, reflected, refracted, and separated into visible light of various
colors.
Light and Optics Text Assignment – Key
(pgs. 113-138)
_____1. Cornea
_____2. Law of reflection
A. A light-sensitive membrane at the back of the inside
of the eye.
B. A transparent membrane that covers the eye.
_____3. Medium
C. Light hitting and bouncing off an object.
_____4. Pupil
D. Something through which light travels.
_____5. Reflection
_____6. Refraction
_____7. Retina
E. The angle of incidence equals the angle of reflection.
F. The bending of light when it passes through a liquid
G. The circular opening in the iris of the eye that
controls how much light enters the eye.
B 1. Cornea (7 choices)
E 2. Law of reflection (7 choices)
D 3. Medium (7 choices)
G 4. Pupil (7 choices)
C. 5. Reflection (7 choices)
F 6. Refraction (7 choices)
A 7. Retina (7 choices)
8. This is the study of visible light and the ways in which visible light interacts with the
eye to produce vision.
a. Optics
b. Perception
a. Optics
c. Range of view
d. Reflection
~5~
Objective – Describe how light can be produced, reflected, refracted, and separated into visible light of various
colors.
9. Identify optical tools. (There are two answers to this question.)
a. Homing devices
b. Microscopes
c. Telescopes
d. Windows
b. Microscopes; c. Telescopes
10. Light hitting and bouncing off an object like a mirror.
a. Reflection
b. Refraction
a. Reflection (2 choices)
11. According to the law of reflection, a light ray striking a mirror…
a. continues moving through the mirror in the same direction.
b. moves into the mirror at a slightly different angle.
c. bounces off the mirror towards the direction it came from.
d. bounces off the mirror at the same angle it hits.
d. bounces off the mirror at the same angle it hits.
Use the diagram to answer questions #12 – #14.
B
A
60o
C
12. Identify angle A.
a. angle of reflection.
b. angle of refraction.
c. angle of incidence.
c. angle of incidence. (3 choices)
~6~
Objective – Describe how light can be produced, reflected, refracted, and separated into visible light of various
colors.
13. Identify angle B.
a. angle of reflection.
b. angle of refraction.
c. angle of incidence.
a. angle of reflection. (3 choices)
14. The measurement of angle c is _____o. (Enter a number.
60
15. When sunlight strikes a window… (There are two answers to this question.)
a. Some rays reflect off the glass.
b. All rays reflect off the glass.
c. Some rays continue through the glass, but their direction is slightly changed.
d. All rays continue through the glass, but their direction is slightly changed.
a. Some rays reflect off the glass; c. Some rays continue through the glass,
but their direction is slightly changed.
16. ______________ occurs when a wave strikes a new medium.
a. Reflection
b. Refraction
b. Refraction (2 choices)
17. Refraction occurs because one side of the wave reaches the new medium slightly
before the other side does.
a. True
b. False
a. True (2 choices)
~7~
Objective – Describe how light can be produced, reflected, refracted, and separated into visible light of various
colors.
B
A
18. Waves moving at an angle into a thinner medium turn away from the normal.
a. Angle A
b. Angle B
b. Angle B (2 choices)
19. Waves moving at an angle into a denser medium turn towards the normal.
a. Angle A
b. Angle B
a. Angle A (2 choices)
20. Water droplets cannot separate white light into the colors of the rainbow
(spectrum).
a. True
b. False
b. False (2 choices)
21. This color appears at the top of a rainbow because it is coming from higher drops.
This color appears at the bottom of a rainbow because it is coming from lower drops.
(There are two answers to this question.)
a. Blue
b. Green
c. Indigo
d. Orange
e. Red
f. Violet
g. Yellow
e. Red; f. Violet
~8~
Objective – Describe how light can be produced, reflected, refracted, and separated into visible light of various
colors.
Light and Optics Text Assignment – Scoring
Guide
20-21 – 4
19 – 3.5
18 – 3
16-17 – 2.5
14-15 – 2
12-13 – 1.5
10-11 – 1
1-9 – .5
0–0
~9~