Introduction To Physical Science

Chapter 17: Sound

Section 1 Self-Check Quiz-Eng.

1
Sounds are produced by __________.
A)pitch
B)vibrations
C)frequencies
D)reverberations
2
What type of waves are sound waves?
A)compressional
B)transverse
C)radio
D)sonar
3
The two types of regions that make up compressional waves are __________.
A)compressions and extensions
B)compressions and rarefactions
C)vibrations and transmissions
D)compressions and transmissions
4
In which of the following mediums will sound travel fastest?
A)air
B)water
C)oil
D)brick
5
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)As the temperature of a substance decreases, 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.
6
The human perception of sound intensity is __________.
A)frequency
B)loudness
C)pitch
D)acoustics
7
The intensity of sound is measured in units called __________.
A)hertz
B)dopplers
C)decibels
D)reverberations
8
Which of the following will you hear as a high pitch?
A)sound wave with frequency of 50 Hz
B)sound wave with intensity of 10 dB
C)sound wave with frequency of 10,000 Hz
D)sound wave with intensity of 100 dB
9
The change in pitch due to a moving wave source is called __________.
A)the Doppler effect
B)a rarefaction
C)the compressional effect
D)resonance
10
The process of locating objects by emitting sounds and interpreting the reflected sound waves is __________.
A)sonar
B)radar
C)echolocation
D)ultrasound
11
The amount of energy a wave carries depends on __________.
A)the amplitude of the wave
B)the frequency of the wave
C)the Doppler effect
D)pitch
12
As frequency increases, wavelength __________.
A)decreases
B)increases
C)remains constant
D)becomes faster
13
A reflected sound wave also is called __________.
A)noise
B)a Doppler
C)resonance
D)an echo
14
__________ is a system that uses the reflection of underwater sound waves to detect objects.
A)Radar
B)Echolocation
C)Sonar
D)The Doppler Effect
15
What is the less dense region of a compressional wave called?
A)trough
B)rarefaction
C)crest
D)rest position
16
__________ occurs when waves bend around a barrier.
A)Diffraction
B)Reflection
C)Refraction
D)Interference
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