Chapter 21 Test - Craig Fisher | Library

MULTIPLE CHOICE
-Choose the correct answer by clicking on your answer choice. Only one answer is correct. (2 pts. each)

2

Sound is created by

2

A substance through which a wave can travel is a

2

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?

2

What produces a noise?

2

The blending of pitches through interference produces an instrument's

2

The amplitude of a sound's waves determines the sound's

2

Sounds with frequencies higher than 20,000 Hz

2

The motion of either the listener or the source of a sound causes

2

Which statement about sound is NOT true?

2

The medium through which sound waves travel affects the

2

Which statement about sound is true?

2

Sound waves are best reflected off which surfaces?

2

The speed of a sound depends on

2

For a sound wave to produce an echo, it must

2

A sonic boom is experienced when

2

What does the mixing of pitches through interference produce?

2

What does the amplitude of a sound's waves affect?

2

Which statement about sound waves is true?

2

Which surface is the best reflector of sound?

2

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?

2

Which of the following people is most likely to suffer from tinnitus?

2

Which sound has air particles that vibrate across the greatest distance?

2

Which of the following could NOT be considered a percussion instrument?

COMPLETION
-Complete the following questions by selecting the correct answer from the word bank. Misspelled words will be marked as incorrect. Some answers may be used more than once, others may not be used at all. (2 pts. each)

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

An instrument's ____________ comes from the blending of pitches through interference.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

The amplitude of a sound's waves determines it's ______________.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

The motion of either the listener or the source of the sound causes the _______________.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

The frequency of the sound wave determines its _____________.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

Sound is directed to the ear canal by the ___________.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

The unit for measuring the loudness of sound is the ____________.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

A sound with a random mixture of frequencies is _____________.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

Electronic echolocation or ______________ is used to find things underwater.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

Part of a(n) ___________ have a large amplitude due to interference.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

A graph of sound can be made with a(n) _______________.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

An object vibrating at a certain frequency causes a second object to vibrate. This is called _______________.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

The distance between two succesive crests of a sound wave is called the _______________.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

The height of the sound wave is it's________________.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

Reflected sound waves are ___________.

Word Bank

echolocation     sound quality     loudness     resonance     Doppler effect     pitch     ultrasonic      pinna     decibel     standing wave     oscilloscope     noise     sonar      amplitude     wavelength     frequency     echoes     

2

The ___________ of a sound wave is the number of times a wave crest passes a certain point each second.

 MATCHING
-Complete the following matching questions by clicking on the correct answer. Only one answer is correct. (2 pts. each)

2

Vibrates when struck.

2

Vibration causes standing waves inside its air column.

2

The use of reflected sound waves to find food or other objects.

2

Occurs when two instruments play the same note.

2

The sound produced by one object causes another object to vibrate.

2

A longitudinal wave caused by vibrations and carried through a medium.

2

A pattern of vibration that looks like a wave is at rest.

2

A unit for measuring loudness.

2

This results from long term exposure to loud sounds.

2

Frequencies that are two or more times the fundamental frequency.

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