Glencoe Physical Science

Chapter 11: Sound

Section 2 Self-Check Quiz-Eng.

1
__________ is the amount of energy that flows through a certain area in a specific amount of time.
A)Intensity
B)Frequency
C)Pitch
D)Loudness
2
The human perception of sound intensity is __________ .
A)frequency
B)loudness
C)pitch
D)acoustics
3
The intensity of sound is measured in units called __________ .
A)decibels
B)hertz
C)dopplers
D)reverberations
4
The human perception of sound frequency is __________ .
A)pitch
B)intensity
C)loudness
D)resonance
5
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
6
__________ waves are sound frequencies above 20,000 Hz.
A)Ultrasonic
B)Infrasonic
C)Subsonic
D)Supersonic
7
The change in pitch due to a moving wave source is called __________ .
A)a rarefaction
B)the Doppler effect
C)the compressional effect
D)resonance
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