Everyday ScienceSound
The frequency range for ultrasound is
20,000 Hz above
less than 20,000 Hz
25,000 Hz
less than 20Hz
20,000 Hz above
Related posts
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
Leave a Reply