Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Sound
travels in a ____ wave. a. | transverse | c. | surface | b. | compressional | d. | inverted | | | | |
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2.
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The
speed of sound in ____ is greater than the speed of sound in water. a. | air | c. | cork | b. | steel | d. | water vapor | | | | |
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3.
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The
part of the ear that transfers sound vibrations to the cochlea is the ____. a. | hair
cells | c. | oval
window | b. | ear drum | d. | ear canal | | | | |
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4.
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If
the intensity of a sound decreases, the ____ decreases. a. | wavelength | c. | spinal
pitch | b. | speed | d. | loudness | | | | |
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5.
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The
unit used to measure frequency is the ____. a. | newton | c. | decibel | b. | joule | d. | hertz | | | | |
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6.
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The
differences among sounds of the same pitch and loudness is described as the ____ of the
sound. a. | quality | c. | fundamental
frequency | b. | pitch | d. | resonance | | | | |
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7.
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Since
ancient times, people have used ____ instruments to send signals, accompany important rituals, and
entertain one another. a. | brass | c. | string | b. | woodwind | d. | percussion | | | | |
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8.
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Scientists and engineers may recommend carpets and draperies for the walls of a
concert hall to reduce excess ____. a. | echolocation | c. | frequency | b. | reverberation | d. | amplitude | | | | |
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