-Choose the correct answer by clicking on your answer choice. Only one answer is correct. (2 pts. each)
Question 1
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Question 2
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Question 19
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Question 24
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Question 25
25.
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
Question 26
26.
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
Question 27
27.
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
Question 28
28.
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
Question 29
29.
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
Question 30
30.
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
Question 31
31.
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
Question 32
32.
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
Question 33
33.
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
Question 34
34.
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
Question 35
35.
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
Question 36
36.
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
Question 37
37.
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
Question 38
38.
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
Question 39
39.
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
Question 40
40.
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)
Question 41
41.
Question 42
42.
Question 43
43.
Question 44
44.
Question 45
45.
Question 46
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Question 47
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Question 48
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Question 49
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Question 50
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Do NOT forget to turn in this assignment on Google Classroom after you have submitted it here! No credit will be awarded for unsubmitted assignments.
Sound is created by
A. the complete back and forth motion of objects.
B. air particles slowing down.
C. longitudinal waves.
D. a substance through which sound can move.
A substance through which a wave can travel is a
A. longitudinal wave.
B. vibration.
C. medium.
D. rarefaction.
Which of the following is NOT a medium?
A. a glass window
B. a vacuum
C. a metal fork
D. the ocean
What can a violinist do if one string is producing a sound that is too low?
A. lengthen the string
B. shorten the string
C. attach the violin to an amplifier
D. use a longer bow
What produces a noise?
A. a repeating pattern of frequencies
B. a repeating pattern of amplitudes
C. a random mix of volumes
D. a random mix of frequencies
The blending of pitches through interference produces an instrument's
A. sound quality.
B. amplitude.
C. echoes.
D. resonance.
The amplitude of a sound's waves determines the sound's
A. pitch.
B. loudness.
C. resonance.
D. sound quality.
Sounds with frequencies higher than 20,000 Hz
A. result from standing waves.
B. create destructive interference.
C. are considered to be noise.
D. are ultrasonic sounds.
The motion of either the listener or the source of a sound causes
A. resonance.
B. shock waves.
C. the Doppler effect.
D. echolocation.
Which statement about sound is NOT true?
A. Air particles travel with sound waves.
B. Sound waves cannot travel through a vacuum.
C. Sound waves exist even if no one hears them.
D. Air particles vibrate along the path of a sound wave.
The medium through which sound waves travel affects the
A. speed of the sound.
B. the amplitude of the waves.
C. the number of waves per second.
D. the sound quality.
Which statement about sound is true?
A. Air particles travel with sound waves.
B. Sound waves can travel through a vacuum.
C. Sound waves exist only if someone hears them.
D. Air particles vibrate along the path of a sound wave.
Sound waves are best reflected off which surfaces?
A. bumpy, soft
B. smooth, soft
C. smooth, hard
D. bumpy, hard
The speed of a sound depends on
A. its source.
B. the force of its compressions.
C. the number of waves per second.
D. the medium through which it travels.
For a sound wave to produce an echo, it must
A. diffract around a small barrier.
B. reflect off the surface of an object.
C. have an ultrasonic frequency.
D. have a very long wavelength.
A sonic boom is experienced when
A. a shock wave reaches an observer.
B. a moving object breaks the sound barrier.
C. a jet engine's thrust is suddenly increased.
D. sound waves overlap by destructive interference.
What does the mixing of pitches through interference produce?
A. sound quality
B. amplitude
C. echoes
D. resonance
What does the amplitude of a sound's waves affect?
A. pitch
B. loudness
C. resonance
D. sound quality
Which statement about sound waves is true?
A. Air travels with them.
B. They travel through a vacuum.
C. They exist only if heard.
D. They can mix.
Which surface is the best reflector of sound?
A. foam rubber
B. crumpled cardboard
C. ceramic tile
D. a shower curtain
Which of the following represents the correct sequence of events?
A. sound waves pass from an area of hot air to an area of cold air; the speed of the sound wave slows; sound waves travel from air into water; the speed of the sound waves increases.
B. sound waves pass from an area of hot air to an area of cold air; the speed of the sound wave increases; sound waves travel from air into water; the speed of the sound waves increases.
C. sound waves pass from an area of hot air to an area of cold air; the speed of the sound wave increases; sound waves travel from air into water; the speed of the sound waves slows.
D. sound waves pass from an area of hot air to an area of cold air; the speed of the sound wave slows; sound waves travel from air into water; the speed of the sound waves slows.
Karizma's ukulele is playing out of tune. Most of the notes are too low. What should she do?
A. lengthen the strings
B. shorten the strings
C. get thicker strings
D. get thinner strings
Which of the following people is most likely to suffer from tinnitus?
A. an elderly person
B. a former rock star
C. a young child
D. a worker in a bank
Which sound has air particles that vibrate across the greatest distance?
A. one with 156 Hz
B. one with 258 Hz
C. one with 14 dB
D. one with 563 dB
Which of the following could NOT be considered a percussion instrument?
A. two sticks being knocked together
B. a piece of grass held between the thumbs and blown on
C. wind chimes blowing in the wind
D. an oatmeal container filled with beans and shaken
Vibrates when struck.
A. sound wave
B. echolocation
C. resonance
D. standing wave
E. decibel
F. overtones
G. interference
H. woodwind instrument
I. percussion instrument
J. tinnitus
Vibration causes standing waves inside its air column.
A. sound wave
B. echolocation
C. resonance
D. standing wave
E. decibel
F. overtones
G. interference
H. woodwind instrument
I. percussion instrument
J. tinnitus
The use of reflected sound waves to find food or other objects.
A. sound wave
B. echolocation
C. resonance
D. standing wave
E. decibel
F. overtones
G. interference
H. woodwind instrument
I. percussion instrument
J. tinnitus
Occurs when two instruments play the same note.
A. sound wave
B. echolocation
C. resonance
D. standing wave
E. decibel
F. overtones
G. interference
H. woodwind instrument
I. percussion instrument
J. tinnitus
The sound produced by one object causes another object to vibrate.
A. sound wave
B. echolocation
C. resonance
D. standing wave
E. decibel
F. overtones
G. interference
H. woodwind instrument
I. percussion instrument
J. tinnitus
A longitudinal wave caused by vibrations and carried through a medium.
A. sound wave
B. echolocation
C. resonance
D. standing wave
E. decibel
F. overtones
G. interference
H. woodwind instrument
I. percussion instrument
J. tinnitus
A pattern of vibration that looks like a wave is at rest.
A. sound wave
B. echolocation
C. resonance
D. standing wave
E. decibel
F. overtones
G. interference
H. woodwind instrument
I. percussion instrument
J. tinnitus
A unit for measuring loudness.
A. sound wave
B. echolocation
C. resonance
D. standing wave
E. decibel
F. overtones
G. interference
H. woodwind instrument
I. percussion instrument
J. tinnitus
This results from long term exposure to loud sounds.
A. sound wave
B. echolocation
C. resonance
D. standing wave
E. decibel
F. overtones
G. interference
H. woodwind instrument
I. percussion instrument
J. tinnitus
Frequencies that are two or more times the fundamental frequency.