Ch20

1
Chapter 20
2
The graph at the top is the history graph at x
4 m of a wave traveling to the right at a speed
of 2 m/s. Which is the history graph of this wave
at x 0 m?
(1) (2) (3) (4)
3
The graph at the top is the history graph at x
4 m of a wave traveling to the right at a speed
of 2 m/s. Which is the history graph of this wave
at x 0 m?
(3) (4)
(1)
(2)
4
Which of the following actions would make a pulse
travel faster down a stretched string?
1. Move your hand up and down more quickly as you
generate the pulse. 2. Move your hand up and down
a larger distance as you generate the pulse. 3.
Use a heavier string of the same length, under
the same tension. 4. Use a lighter string of the
same length, under the same tension. 5. Use a
longer string of the same thickness, density and
tension.
5
Which of the following actions would make a pulse
travel faster down a stretched string?
1. Move your hand up and down more quickly as you
generate the pulse. 2. Move your hand up and down
a larger distance as you generate the pulse. 3.
Use a heavier string of the same length, under
the same tension. 4. Use a lighter string of the
same length, under the same tension. 5. Use a
longer string of the same thickness, density and
tension.
6
What is the frequency of this traveling wave?
1. 10 Hz 2. 5 Hz 3. 2 Hz 4. 0.2 Hz 5. 0.1
Hz
7
What is the frequency of this traveling wave?
1. 10 Hz 2. 5 Hz 3. 2 Hz 4. 0.2 Hz 5. 0.1
Hz
8
What is the phase difference between the crest of
a wave and the adjacent trough?
1. 0 2. p /4 3. p /2 4. 3 p /2 5. p
9
What is the phase difference between the crest of
a wave and the adjacent trough?
1. 0 2. p /4 3. p /2 4. 3 p /2 5. p
10
A light wave travels through three transparent
materials of equal thickness. Rank is order, from
the largest to smallest, the indices of
refraction n1, n2, and n3.
1. n2 gt n1 gt n3 2. n3 gt n1 gt n2 3. n1 gt n2 gt
n3 4. n3 gt n2 gt n1 5. n1 n2 n3
11
A light wave travels through three transparent
materials of equal thickness. Rank is order, from
the largest to smallest, the indices of
refraction n1, n2, and n3.
1. n2 gt n1 gt n3 2. n3 gt n1 gt n2 3. n1 gt n2 gt
n3 4. n3 gt n2 gt n1 5. n1 n2 n3
12
Amy and Zack are both listening to the source of
sound waves that is moving to the right. Compare
the frequencies each hears.
1. fAmy lt fZack 2. fAmy fZack 3. fAmy gt
fZack
13
Amy and Zack are both listening to the source of
sound waves that is moving to the right. Compare
the frequencies each hears.
1. fAmy lt fZack 2. fAmy fZack 3. fAmy gt
fZack
14
Chapter 20 Reading Quiz
15
A graph showing wave displacement versus position
at a specific instant of time is called a
1. snapshot graph. 2. history graph. 3. bar
graph. 4. line graph. 5. composite graph.
16
A graph showing wave displacement versus position
at a specific instant of time is called a
1. snapshot graph. 2. history graph. 3. bar
graph. 4. line graph. 5. composite graph.
17
A graph showing wave displacement versus time at
a specific point in space is called a
1. snapshot graph. 2. history graph. 3. bar
graph. 4. line graph. 5. composite graph.
18
A graph showing wave displacement versus time at
a specific point in space is called a
1. snapshot graph. 2. history graph. 3. bar
graph. 4. line graph. 5. composite graph.
19
A wave front diagram shows
1. the wavelengths of a wave. 2. the crests of a
wave. 3. how the wave looks as it moves toward
you. 4. the forces acting on a string thats
under tension. 5. Wave front diagrams were not
discussed in this chapter.
20
A wave front diagram shows
1. the wavelengths of a wave. 2. the crests of a
wave. 3. how the wave looks as it moves toward
you. 4. the forces acting on a string thats
under tension. 5. Wave front diagrams were not
discussed in this chapter.
21
The waves analyzed in this chapter are
1. sound waves. 2. light waves. 3. string
waves. 4. water waves. 5. all of the above.
22
The waves analyzed in this chapter are
1. sound waves. 2. light waves. 3. string
waves. 4. water waves. 5. all of the above.