Chapter 21: Musical Sounds
- 1.The pitch of a musical sound depends on the sound wave's
- A.
Wavelength.
- B.
Frequency.
- C.
Speed.
- D.
Amplitude.
- E.
All of these
- 2.As we become older, the frequency range of human hearing
- A.
Decreases.
- B.
Increases.
- C.
Remains relatively constant.
- 3.As we grow older, we have the greatest difficulty hearing frequencies that are
- A.
Low.
- B.
Mid-range.
- C.
High.
- 4.The loudness of a musical sound is a measure of the sound wave's
- A.
Wavelength.
- B.
Frequency.
- C.
Speed.
- D.
Amplitude.
- E.
All of these
- 5.The loudness of a sound is most closely related to its
- A.
Speed.
- B.
Frequency.
- C.
Wavelength.
- D.
Intensity.
- 6.A decibel is a measure of a sound's
- A.
Frequency.
- B.
Wavelength.
- C.
Speed.
- D.
Loudness.
- E.
All of these
- 7.The quality of a musical note has to do with its
- A.
Loudness.
- B.
Frequency.
- C.
Harmonics.
- D.
Amplitude.
- E.
All of the above choices are correct.
- 8.High pitched sound has a high
- A.
Speed.
- B.
Frequency.
- C.
Number of partial tones.
- D.
All of the above choices are correct.
- E.
None of the above choices are correct.
- 9.Reverberation is a phenomenon you would be most likely to hear if you sing in
- A.
The shower.
- B.
A small drape-covered room.
- C.
A large drape-covered room.
- D.
The desert.
- 10.The fundamental frequency of a violin string is 440 hertz. The frequency of its second harmonic is
- A.
220 hertz.
- B.
440 hertz.
- C.
880 hertz.
- D.
None of the above choices are correct.
- 11.The frequency of a note one octave higher in pitch than a 440-Hz note is
- A.
1760 Hz.
- B.
880 Hz.
- C.
440 Hz.
- D.
220 Hz.
- E.
110 Hz.
- 12.What is the threshold of hearing?
- A.
10 decibel
- B.
1 decibel
- C.
0.1 decibel
- D.
0.01 decibel
- E.
None of the above choices are correct.
- 13.Fourier discovered that periodic waves can be represented by
- A.
A series of non-periodic waves.
- B.
The summation of a series of simple sine waves.
- C.
A binary code.
- D.
Pulses of the same amplitude.
- 14.All other things being the same, strings having more mass than other strings will produce
- A.
Higher frequency notes.
- B.
Lower frequency notes.
- C.
The same frequency notes.
- 15.Compared to a sound of 40 decibels, a sound of 50 decibels is
- A.
10 times as intense.
- B.
100 times as intense.
- C.
1000 times as intense.
- D.
10,000 times as intense.
- E.
More than 10,000 times as intense.
- 16.Compared to a sound of 30 decibels, a sound of 60 decibels is
- A.
Twice as intense.
- B.
10 times as intense.
- C.
100 times as intense.
- D.
1000 times as intense.
- E.
10,000 times as intense.
- 17.About how many octaves are present between 20 hertz and 2560 hertz?
- A.
5
- B.
6
- C.
7
- D.
8
- E.
9
- 18.About how many octaves are present between 100 hertz and 1600 hertz?
- A.
4
- B.
5
- C.
6
- D.
7
- E.
8
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