Deck 21: Musical Sounds

Question 1

As we grow older, the greatest hearing difficulty is with frequencies that are

A)low.
B)mid-range.
C)high.

Answer 1

high.

Question 2

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.

Answer 2

the shower.

Question 3

Compared to noise, musical sounds have

A)periodic tones.
B)musical notes.
C)both of these
D)neither of these

Answer 3

both of these

Question 4

As we become older, the frequency range of human hearing

A)decreases.
B)increases.
C)remains relatively constant.

Question 5

Which of these sounds characterize "white noise"?

A)surf
B)rustling leaves
C)bubbling water
D)all of the above
E)none of the above

Question 6

A decibel is a measure of a sound's

A)frequency.
B)wavelength.
C)speed.
D)loudness.
E)all of the above

Question 7

We don't hear the squeaks of bats because their sound is

A)of ultra-high frequencies.
B)of ultra-high loudness.
C)both of these
D)neither of these

Question 8

Double the frequency of musical note and you double its

A)wavelength.
B)speed.
C)amplitude.
D)all of the above
E)none of the above

Question 9

The loudness of a sound is most closely related to its

A)speed.
B)frequency.
C)wavelength.
D)intensity.

Question 10

Whereas loudness is a physiological sensation, sound intensity is

A)the same.
B)measurable with acoustical instruments.
C)both of these
D)neither of these

Question 11

Musical tones are characterized by

A)pitch.
B)loudness.
C)quality.
D)all of the above
E)none of the above

Question 12

Each note on a piano keyboard has its own

A)pitch.
B)loudness.
C)wavelength.
D)amplitude.
E)none of the above

Question 13

High-pitched sound has a high

A)speed.
B)rate of vibration.
C)both of these
D)neither of these

Question 14

Which of these relate most to the loudness of sound?

A)wavelength.
B)frequency.
C)speed.
D)amplitude.
E)all of the above

Question 15

What is the threshold of hearing?

A)0.1 decibel
B)0.01 decibel
C)1 decibel
D)10 decibel
E)none of the above

Question 16

Compared to a sound of 30 decibels, the intensity of a sound of 60 decibels is

A)twice as intense.
B)10 times as much.
C)100 times as much.
D)1000 times as much.
E)10,000 times as much.

Question 17

Double the frequency of a musical note and you halve its

A)wavelength.
B)speed.
C)amplitude.
D)all of the above
E)none of the above

Question 18

Compared to a sound of 40 decibels, the intensity of a sound of 50 decibels is

A)10 times as much.
B)100 times as much.
C)1000 times as much.
D)10,000 times as much.
E)more than 10,000 times as much.

Question 19

The pitch of a musical sound is most related to

A)wavelength.
B)frequency.
C)speed.
D)amplitude.
E)all of the above

Question 20

The quality of a musical note has to do with its

A)loudness.
B)frequency.
C)harmonics.
D)amplitude.
E)none of the above

Question 21

The strings in musical instruments that have greater mass tend to produce notes of

A)higher frequency.
B)lower frequency.
C)the same frequency.
D)none of the above

Question 22

Sounds from musical instruments are produced by

A)vibrating strings.
B)vibrating air columns.
C)percussion.
D)all of the above
E)none of the above

Question 23

How many octaves exist between 100 hertz and 1600 hertz?

A)4
B)5
C)6
D)7
E)8

Question 24

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.

Question 25

The pitch of a guitar relates to the string's

A)length.
B)tension.
C)mass.
D)all the above
E)none of the above

Question 26

The number of nodes in a standing wave of three wavelengths, not including the endpoints, is

A)2.
B)3.
C)4.
D)5.
E)6.

Question 27

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

Question 28

Vibrating membranes relate to which instrument?

A)violin
B)drum
C)oboe
D)all of the above
E)none of the above

Question 29

Vibrating air columns relate to which instrument?

A)guitar
B)harp
C)trumpet
D)all of the above
E)none of the above

Question 30

The frequencies needed to reproduce high-quality sounds are

A)within the range of hearing.
B)beyond the range of hearing.
C)centered about 2000 hertz.
D)none of the above

Question 31

Fourier analysis makes central use of

A)wave superposition.
B)partial tones.
C)harmonics.
D)none of the above

Question 32

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.

Question 33

The wind instrument with no keys or valves is a

A)trumpet.
B)saxophone.
C)clarinet.
D)bugle.

Question 34

Fourier analysis is something accomplished

A)with all musical instruments.
B)automatically by humans.
C)both of these
D)neither of these

Question 35

How many octaves exist between 20 hertz and 2560 hertz?

A)5
B)6
C)7
D)8
E)9

Question 36

The number of nodes in a standing wave of two wavelengths, not including the endpoints, is

A)2.
B)3.
C)4.
D)5.
E)6.

Question 37

The number of nodes in a standing wave of one wavelength, not including the endpoints, is

A)0.
B)1.
C)2.
D)3.
E)4.

Question 38

Which of these strongly relate to a piano string?

A)mass
B)length
C)pitch
D)all of the above
E)none of the above

Question 39

Which of these strongly relate to a saxophone and clarinet?

A)vibrating air
B)length of tube.
C)both of these
D)neither of these

Question 40

How many octaves exist between 40 hertz and 1280 hertz?

A)5
B)6
C)7
D)8
E)9

Question 41

The laser light that can carry more information is

A)red.
B)blue.
C)either of these
D)neither of these

Question 42

Analog sound signals are produced by

A)phonograph records.
B)CDs.
C)DVDs.
D)all of the above
E)none of the above

Question 43

Which makes central use of the binary system?

A)phonograph records
B)DVDs
C)both of these
D)neither of these