An%20object%20moves%20with%20simple%20harmonic%20motion.%20If%20the%20amplitude%20and%20the%20period%20are%20both%20doubled,%20the%20object

1
An object moves with simple harmonic motion. If
the amplitude and the period are both doubled,
the objects maximum speed is

1. quartered.
2. halved.
3. unchanged.
4. doubled.
5. quadrupled.

2
An object moves with simple harmonic motion. If
the amplitude and the period are both doubled,
the objects maximum speed is

1. quartered.
2. halved.
3. unchanged.
4. doubled.
5. quadrupled.

3
The figure shows four oscillators at t 0. Which
one has the phase constant
4
The figure shows four oscillators at t 0. Which
one has the phase constant
5
Four springs have been compressed from their
equilibrium position at x 0 cm. When released,
they will start to oscillate. Rank in order, from
highest to lowest, the maximum speeds of the
oscillations.

1. c gt b gt a gt d
2. c gt b gt a d
3. a d gt b gt c
4. d gt a gt b gt c
5. b gt c gt a d

6
Four springs have been compressed from their
equilibrium position at x 0 cm. When released,
they will start to oscillate. Rank in order, from
highest to lowest, the maximum speeds of the
oscillations.

1. c gt b gt a gt d
2. c gt b gt a d
3. a d gt b gt c
4. d gt a gt b gt c
5. b gt c gt a d

7
This is the position graph of a mass on a spring.
What can you say about the velocity and the force
at the instant indicated by the dotted line?

1. Velocity is zero force is to the right.
2. Velocity is zero force is to the left.
3. Velocity is negative force is to the left.
4. Velocity is negative force is to the right.
5. Velocity is positive force is to the right.

8
This is the position graph of a mass on a spring.
What can you say about the velocity and the force
at the instant indicated by the dotted line?

1. Velocity is zero force is to the right.
2. Velocity is zero force is to the left.
3. Velocity is negative force is to the left.
4. Velocity is negative force is to the right.
5. Velocity is positive force is to the right.

9
One person swings on a swing and finds that the
period is 3.0 s. Then a second person of equal
mass joins him. With two people swinging, the
period is

1. 6.0 s.
2. gt3.0 s but not necessarily 6.0 s.
3. 3.0 s.
4. lt3.0 s but not necessarily 1.5 s.
5. 1.5 s.

10
One person swings on a swing and finds that the
period is 3.0 s. Then a second person of equal
mass joins him. With two people swinging, the
period is

1. 6.0 s.
2. gt3.0 s but not necessarily 6.0 s.
3. 3.0 s.
4. lt3.0 s but not necessarily 1.5 s.
5. 1.5 s.

11
Rank in order, from largest to smallest, the time
constants ta td of the decays shown in the
figure.

12
Rank in order, from largest to smallest, the time
constants ta td of the decays shown in the
figure.

13
Which of the following actions would make a pulse
travel faster down a stretched string?

1. Use a heavier string of the same length, under
   the same tension.
2. Use a lighter string of the same length, under
   the same tension.
3. Move your hand up and down more quickly as you
   generate the pulse.
4. Move your hand up and down a larger distance as
   you generate the pulse.
5. Use a longer string of the same thickness,
   density, and tension.

14
Which of the following actions would make a pulse
travel faster down a stretched string?

1. Use a heavier string of the same length, under
   the same tension.
2. Use a lighter string of the same length, under
   the same tension.
3. Move your hand up and down more quickly as you
   generate the pulse.
4. Move your hand up and down a larger distance as
   you generate the pulse.
5. Use a longer string of the same thickness,
   density, and tension.

15
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?
16
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?
17
What is the frequency of this traveling wave?

1. 0.1 Hz
2. 0.2 Hz
3. 2 Hz
4. 5 Hz
5. 10 Hz

18
What is the frequency of this traveling wave?

1. 0.1 Hz
2. 0.2 Hz
3. 2 Hz
4. 5 Hz
5. 10 Hz

19
What is the phase difference between the crest of
a wave and the adjacent trough?

1. 0
2. p
3. p /4
4. p /2
5. 3 p /2

20
What is the phase difference between the crest of
a wave and the adjacent trough?

1. 0
2. p
3. p /4
4. p /2
5. 3 p /2

21
A light wave travels through three transparent
materials of equal thickness. Rank in order, from
the largest to smallest, the indices of
refraction n1, n2, and n3.

1. n1 gt n2 gt n3
2. n2 gt n1 gt n3
3. n3 gt n1 gt n2
4. n3 gt n2 gt n1
5. n1 n2 n3

22
A light wave travels through three transparent
materials of equal thickness. Rank in order, from
the largest to smallest, the indices of
refraction n1, n2, and n3.

1. n1 gt n2 gt n3
2. n2 gt n1 gt n3
3. n3 gt n1 gt n2
4. n3 gt n2 gt n1
5. n1 n2 n3

23
Four trumpet players are playing the same note.
If three of them suddenly stop, the sound
intensity level decreases by

1. 4 dB
2. 6 dB
3. 12 dB
4. 40 dB

24
Four trumpet players are playing the same note.
If three of them suddenly stop, the sound
intensity level decreases by

1. 4 dB
2. 6 dB
3. 12 dB
4. 40 dB

25
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 gt fZack
2. fAmy lt fZack
3. fAmy fZack

26
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 gt fZack
2. fAmy lt fZack
3. fAmy fZack

27
Two pulses on a string approach each other at
speeds of 1 m/s. What is the shape of the string
at t 6 s?
28
Two pulses on a string approach each other at
speeds of 1 m/s. What is the shape of the string
at t 6 s?
29
A standing wave on a string vibrates as shown at
the top. Suppose the tension is quadrupled while
the frequency and the length of the string are
held constant. Which standing wave pattern is
produced?
30
A standing wave on a string vibrates as shown at
the top. Suppose the tension is quadrupled while
the frequency and the length of the string are
held constant. Which standing wave pattern is
produced?
31
An open-open tube of air supports standing waves
at frequencies of 300 Hz and 400 Hz, and at no
frequencies between these two. The second
harmonic of this tube has frequency

1. 800 Hz.
2. 200 Hz.
3. 600 Hz.
4. 400 Hz.
5. 100 Hz.

32
An open-open tube of air supports standing waves
at frequencies of 300 Hz and 400 Hz, and at no
frequencies between these two. The second
harmonic of this tube has frequency

1. 800 Hz.
2. 200 Hz.
3. 600 Hz.
4. 400 Hz.
5. 100 Hz.

33
Two loudspeakers emit waves with l 2.0 m.
Speaker 2 is 1.0 m in front of speaker 1. What,
if anything, must be done to cause constructive
interference between the two waves?

1. Move speaker 1 forward (to the right) 0.5 m.
2. Move speaker 1 backward (to the left) 1.0 m.
3. Move speaker 1 forward (to the right) 1.0 m.
4. Move speaker 1 backward (to the left) 0.5 m.
5. Nothing. The situation shown already causes
   constructive interference.

34
Two loudspeakers emit waves with l 2.0 m.
Speaker 2 is 1.0 m in front of speaker 1. What,
if anything, must be done to cause constructive
interference between the two waves?

1. Move speaker 1 forward (to the right) 0.5 m.
2. Move speaker 1 backward (to the left) 1.0 m.
3. Move speaker 1 forward (to the right) 1.0 m.
4. Move speaker 1 backward (to the left) 0.5 m.
5. Nothing. The situation shown already causes
   constructive interference.

35
The interference at point C in the figure at the
right is

1. maximum constructive.
2. destructive, but not perfect.
3. constructive, but less than maximum.
4. perfect destructive.
5. there is no interference at point C.

36
The interference at point C in the figure at the
right is

1. maximum constructive.
2. destructive, but not perfect.
3. constructive, but less than maximum.
4. perfect destructive.
5. there is no interference at point C.

37
These two loudspeakers are in phase. They emit
equal-amplitude sound waves with a wavelength of
1.0 m. At the point indicated, is the
interference maximum constructive, perfect
destructive or something in between?

1. perfect destructive
2. maximum constructive
3. something in between

38
These two loudspeakers are in phase. They emit
equal-amplitude sound waves with a wavelength of
1.0 m. At the point indicated, is the
interference maximum constructive, perfect
destructive or something in between?

1. perfect destructive
2. maximum constructive
3. something in between

39
You hear three beats per second when two sound
tones are generated. The frequency of one tone is
known to be 610 Hz. The frequency of the other is

1. 604 Hz.
2. 607 Hz.
3. 613 Hz.
4. 616 Hz.
5. Either b or c.

40
You hear three beats per second when two sound
tones are generated. The frequency of one tone is
known to be 610 Hz. The frequency of the other is

1. 604 Hz.
2. 607 Hz.
3. 613 Hz.
4. 616 Hz.
5. Either b or c.

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