Introduction to Physical Science

Chapter 17: Sound

Sound

1.
__________ is a system that uses the reflection of underwater sound waves to detect objects.
A)Radar
B)Sonar
C)The Doppler Effect
D)Echolocation
2.
The echoing effect produced by many reflections of sound is called __________.
A)rarefaction
B)resonance
C)reverberation
D)intensity
3.
Which of the following will you hear as a high pitch?
A)sound wave with frequency of 10,000 Hz
B)sound wave with frequency of 50 Hz
C)sound wave with intensity of 10 dB
D)sound wave with intensity of 100 dB
4.
In which of the following mediums will sound travel fastest?
A)brick
B)air
C)water
D)oil
5.
A reflected sound wave also is called __________.
A)a Doppler
B)noise
C)an echo
D)resonance
6.
The intensity of sound is measured in units called __________.
A)decibels
B)reverberations
C)hertz
D)dopplers
7.
The two types of regions that make up compressional waves are __________.
A)compressions and transmissions
B)vibrations and transmissions
C)compressions and extensions
D)compressions and rarefactions
8.
How does temperature of a medium affect the speed of sound waves?
A)As the temperature of a substance increases, sound waves in it move faster.
B)Temperature does not affect the speed of sound waves.
C)As the temperature of a substance increases, sound waves in it move more slowly.
D)As the temperature of a substance decreases, sound waves in it move faster.
9.
Which of the following is NOT a group of musical instruments?
A)percussion
B)stringed
C)wind
D)overtones
10.
The process of locating objects by emitting sounds and interpreting the reflected sound waves is __________.
A)ultrasound
B)echolocation
C)radar
D)sonar
11.
__________ occurs when waves bend around a barrier.
A)Reflection
B)Refraction
C)Interference
D)Diffraction
12.
As frequency increases, wavelength __________.
A)remains constant
B)decreases
C)increases
D)becomes faster
13.
In the human ear, sound waves are gathered in the __________.
A)cochlea
B)middle ear
C)outer ear
D)inner ear
14.
What is the difference between music and noise?
A)Music has a wider range of frequencies than noise.
B)Music follows a specified pattern of sounds and pitches, noise has no pattern.
C)Noise has a greater intensity than music.
D)It is strictly a matter of opinion.
15.
What type of waves are sound waves?
A)sonar
B)compressional
C)radio
D)transverse
16.
The change in pitch due to a moving wave source is called __________.
A)the compressional effect
B)the Doppler effect
C)a rarefaction
D)resonance
17.
The amount of energy a wave carries depends on __________.
A)pitch
B)the Doppler effect
C)the amplitude of the wave
D)the frequency of the wave
18.
The human perception of sound intensity is __________.
A)frequency
B)pitch
C)acoustics
D)loudness
19.
__________ is the ability of a medium to vibrate by absorbing energy at its natural frequency.
A)Overtone
B)Reverberation
C)Resonance
D)Quality
20.
The __________ is the frequency at which a material tends to vibrate when it is disturbed.
A)resonance
B)natural frequency
C)pitch
D)quality
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