Everyday ScienceSound
Which rays do bats and dolphins use to see?
electric waves
light waves
heat waves
ultrasound waves
ultrasound waves
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Vitamin C is soluble inA. fat
B. water
C. ethers
D. phenols
The difference between the loudness (L) of an unknown sound and the loudness Loย is known as
A. 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
The density of air in the atmosphere is
A. uniform
B. not uniform
C. zero
D. none of above
Ultrasonic waves carry more
A. energy only
B. frequency only
C. heat
D. energy and frequency
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