Chapter 21 Test
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Last updated about 5 years ago
50 questions
2
Sound is created by
Sound is created by
2
A substance through which a wave can travel is a
A substance through which a wave can travel is a
2
Which of the following is NOT a medium?
Which of the following is NOT a medium?
2
What can a violinist do if one string is producing a sound that is too low?
What can a violinist do if one string is producing a sound that is too low?
2
What produces a noise?
What produces a noise?
2
The blending of pitches through interference produces an instrument's
The blending of pitches through interference produces an instrument's
2
The amplitude of a sound's waves determines the sound's
The amplitude of a sound's waves determines the sound's
2
Sounds with frequencies higher than 20,000 Hz
Sounds with frequencies higher than 20,000 Hz
2
The motion of either the listener or the source of a sound causes
The motion of either the listener or the source of a sound causes
2
Which statement about sound is NOT true?
Which statement about sound is NOT true?
2
The medium through which sound waves travel affects the
The medium through which sound waves travel affects the
2
Which statement about sound is true?
Which statement about sound is true?
2
Sound waves are best reflected off which surfaces?
Sound waves are best reflected off which surfaces?
2
The speed of a sound depends on
The speed of a sound depends on
2
For a sound wave to produce an echo, it must
For a sound wave to produce an echo, it must
2
A sonic boom is experienced when
A sonic boom is experienced when
2
What does the mixing of pitches through interference produce?
What does the mixing of pitches through interference produce?
2
What does the amplitude of a sound's waves affect?
What does the amplitude of a sound's waves affect?
2
Which statement about sound waves is true?
Which statement about sound waves is true?
2
Which surface is the best reflector of sound?
Which surface is the best reflector of sound?
2
Which of the following represents the correct sequence of events?
Which of the following represents the correct sequence of events?
2
Karizma's ukulele is playing out of tune. Most of the notes are too low. What should she do?
Karizma's ukulele is playing out of tune. Most of the notes are too low. What should she do?
2
Which of the following people is most likely to suffer from tinnitus?
Which of the following people is most likely to suffer from tinnitus?
2
Which sound has air particles that vibrate across the greatest distance?
Which sound has air particles that vibrate across the greatest distance?
2
Which of the following could NOT be considered a percussion instrument?
Which of the following could NOT be considered a percussion instrument?
2
An instrument's ____________ comes from the blending of pitches through interference.
An instrument's ____________ comes from the blending of pitches through interference.
2
The amplitude of a sound's waves determines it's ______________.
The amplitude of a sound's waves determines it's ______________.
2
The motion of either the listener or the source of the sound causes the _______________.
The motion of either the listener or the source of the sound causes the _______________.
2
The frequency of the sound wave determines its _____________.
The frequency of the sound wave determines its _____________.
2
Sound is directed to the ear canal by the ___________.
Sound is directed to the ear canal by the ___________.
2
The unit for measuring the loudness of sound is the ____________.
The unit for measuring the loudness of sound is the ____________.
2
A sound with a random mixture of frequencies is _____________.
A sound with a random mixture of frequencies is _____________.
2
Electronic echolocation or ______________ is used to find things underwater.
Electronic echolocation or ______________ is used to find things underwater.
2
Part of a(n) ___________ have a large amplitude due to interference.
Part of a(n) ___________ have a large amplitude due to interference.
2
A graph of sound can be made with a(n) _______________.
A graph of sound can be made with a(n) _______________.
2
An object vibrating at a certain frequency causes a second object to vibrate. This is called _______________.
An object vibrating at a certain frequency causes a second object to vibrate. This is called _______________.
2
The distance between two succesive crests of a sound wave is called the _______________.
The distance between two succesive crests of a sound wave is called the _______________.
2
The height of the sound wave is it's________________.
The height of the sound wave is it's________________.
2
Reflected sound waves are ___________.
Reflected sound waves are ___________.
2
The ___________ of a sound wave is the number of times a wave crest passes a certain point each second.
The ___________ of a sound wave is the number of times a wave crest passes a certain point each second.
2
Vibrates when struck.
Vibrates when struck.
2
Vibration causes standing waves inside its air column.
Vibration causes standing waves inside its air column.
2
The use of reflected sound waves to find food or other objects.
The use of reflected sound waves to find food or other objects.
2
Occurs when two instruments play the same note.
Occurs when two instruments play the same note.
2
The sound produced by one object causes another object to vibrate.
The sound produced by one object causes another object to vibrate.
2
A longitudinal wave caused by vibrations and carried through a medium.
A longitudinal wave caused by vibrations and carried through a medium.
2
A pattern of vibration that looks like a wave is at rest.
A pattern of vibration that looks like a wave is at rest.
2
A unit for measuring loudness.
A unit for measuring loudness.
2
This results from long term exposure to loud sounds.
This results from long term exposure to loud sounds.
2
Frequencies that are two or more times the fundamental frequency.
Frequencies that are two or more times the fundamental frequency.