A sound source of high frequency emits a high
A) speed.
B) amplitude.
C) pitch.
D) all of the above
E) none of the above
Correct Answer:
Verified
Q47: Our ears are best at hearing
A)infrasonic sound.
B)ultrasonic
Q48: The speed of a sound wave in
Q49: Sound travels fastest in
A)water vapor.
B)water.
C)ice.
D)same in all
Q50: The range of human hearing is about
A)10
Q51: Double the frequency of sound and you
Q53: The speed of sound varies with
A)loudness.
B)frequency.
C)wavelength.
D)all of
Q54: A 340-Hz sound wave travels at 340
Q55: Ultrasonic sound waves have relatively
A)low frequencies.
B)long wavelengths.
C)both
Q56: For each 1-degree increase in temperature above
Q57: Sound travels faster when the air is
A)warm.
B)cold.
C)neither
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