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WorksheetsSOUND QUIZ
Total questions: 9
Worksheet time: 4mins
Name
Class
Date
1.
HUMAN AUDIBLE RANGE IS
a)
20HZ-20,000HZ
b)
200HZ-200,000HZ
c)
10HZ-10,000HZ
d)
100HZ-100,000HZ
2.
Sound, below the frequency of 20Hz is called :
a)
ultrasound
b)
supersound
c)
infrasound
d)
sonar
3.
Bats catch their prey by producing :
a)
sonar
b)
radar
c)
infrasound
d)
ultrasound
4.
...................... is a battery operated electronic device used by those persons who are hard of hearing.
a)
amplifier
b)
hearing aid
c)
microphone
d)
speakers
5.
Ultrasonic waves are made to reflect from various parts of the heart and form the image of the heart. This technique is called :
a)
echocardiography
b)
electrocardiography
c)
ultracardiography
d)
infracardiography
6.
Echoes maybe heard more than once due to
a)
multiple reflections
b)
single time reflection
c)
refraction
d)
diffraction of waves
7.
Uses of Multiple Reflection of sound can be observed in instruments like :
a)
Megaphone
b)
Horn
c)
Stethoscope
d)
all of the above
8.
..............used to send the sound towards audience in big hall or auditorium.
a)
horn
b)
sonar
c)
sound board
d)
radar
9.
..............................can be used, to clean parts located in hard to reach places like spiral tubes and electronic equipment.
a)
ultrasound
b)
solarsound
c)
supersound
d)
infrasound
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