Sound
The loudness of sound is directly proportional to
intensity
area
pitch
log of intensity
log of intensity
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The difference between the loudness (L) of an unknown sound and the loudness Loย is known asA. intensity level of the unknown sound
B. intensity level of the known sound
C. quality of sound
D. pitch of sound
The sound waves travel from its source by
A. vibrations in wires or strings
B. electromagnetic wave
C. infrared wave
D. changes in air pressure
The loudness of sound is related most closely to its
A. frequency
B. period
C. amplitude
D. wavelength
The loudness of sound varies directly with the vibrating body’s
A. intensity
B. amplitude
C. pitch
D. quality
Ultrasonic waves carry more
A. energy only
B. frequency only
C. heat
D. energy and frequency
The speed of sound in solids is
A. 10 times that in gas
B. 20 times that in gas
C. 5 times that in gas
D. 15 times that in gas
Sound is produced by
A. vibrating bodies
B. transferring signals
C. reflection of waves
D. deflection of waves
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