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
way your brain interprets the intensity of a sound is the ____. a. | loudness | c. | frequency | b. | pitch | d. | amplitude | | | | |
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6.
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For
the Doppler effect to occur, ____. a. | the sound source must be moving | b. | the listener
must be moving | c. | both source and listener must be
moving | d. | either source or listener must be
moving | | |
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7.
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A
combination of sounds with distinct pitch and specific pattern is ____. a. | constructive
interference | c. | beats | b. | noise | d. | music | | | | |
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8.
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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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