Physical Science

Chapter 11: Sound

Sound

1.
__________ waves are sound frequencies above 20,000 Hz.
A)Subsonic
B)Ultrasonic
C)Infrasonic
D)Supersonic
2.
Sound waves cannot travel in __________.
A)solids
B)empty space
C)gases
D)liquids
3.
__________ is the amount of energy that flows through a certain area in a specific amount of time.
A)Frequency
B)Loudness
C)Pitch
D)Intensity
4.
The echoing effect produced by many reflections of sound is called __________ .
A)intensity
B)resonance
C)reverberation
D)rarefaction
5.
The __________ is a spiral-shaped structure filled with liquid.
A)stirrup
B)anvil
C)hammer
D)cochlea
6.
Which of the following will you hear as a high pitch?
A)sound wave with frequency of 50 Hz
B)sound wave with frequency of 10,000 Hz
C)sound wave with intensity of 10 dB
D)sound wave with intensity of 100 dB
7.
The two types of regions that make up compressional waves are __________ .
A)compressions and rarefactions
B)compressions and transmissions
C)compressions and extensions
D)vibrations and transmissions
8.
What type of waves are sound waves?
A)compressional
B)sonar
C)transverse
D)radio
9.
The change in pitch due to a moving wave source is called __________ .
A)the compressional effect
B)resonance
C)the Doppler effect
D)a rarefaction
10.
The matter through which all sound waves travel is called __________ .
A)water
B)atmosphere
C)air
D)a medium
11.
What is the difference between music and noise?
A)Music has a wider range of frequencies than noise.
B)It is strictly a matter of opinion.
C)Music follows a specified pattern of sounds and pitches; noise has no pattern.
D)Noise has a greater intensity than music.
12.
A(n) __________ is a vibration whose frequency is a multiple of the fundamental frequency.
A)reverberation
B)overtone
C)resonant frequency
D)natural frequency
13.
The study of sound is __________ .
A)sonar
B)acoustics
C)ultrasonics
D)linguistics
14.
The human perception of sound intensity is __________ .
A)pitch
B)loudness
C)acoustics
D)frequency
15.
The process of locating objects by emitting sounds and interpreting the reflected sound waves is __________ .
A)radar
B)sonar
C)ultrasound
D)echolocation
16.
__________ is the ability of a medium to vibrate by absorbing energy at its natural frequency.
A)Resonance
B)Overtone
C)Reverberation
D)Quality
17.
How does temperature of a medium affect the speed of sound waves?
A)As the temperature of a substance decreases, sound waves in it move faster.
B)As the temperature of a substance increases, sound waves in it move faster.
C)As the temperature of a substance increases, sound waves in it move more slowly.
D)Temperature does not affect the speed of sound waves.
18.
In which of the following mediums will sound travel fastest?
A)water
B)air
C)oil
D)brick
19.
The human perception of sound frequency is __________ .
A)intensity
B)loudness
C)pitch
D)resonance
20.
Sounds are produced by __________ .
A)frequencies
B)pitch
C)vibrations
D)reverberations
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