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WorksheetsCoal and Petroleum
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Synthesizer is an example of
a)
Aerophones
b)
Electrophones
c)
Idiophones
d)
Chordophones
2.
Hearing capacity of human ears
a)
20 Hz to 2000 Hz
b)
2 Hz to 200 Hz
c)
20 Hz to 20000 Hz
d)
200 Hz to 2000 Hz
3.
SI unit of frequency is
a)
Hz
b)
dB
c)
Kg
d)
Pascal
4.
Bouncing back of sound waves is called
a)
Attraction of sound
b)
Vibration of sound
c)
Reflection of sound
d)
Propagationof spund
5.
Amplification of sound waves is carried out by the
a)
Outer ear
b)
Inner ear
c)
Middle ear
6.
Sound is produced by a (a) body .
7.
SI unit of loudness of sound is
a)
dB
b)
M
c)
Hz
d)
G
8.
Xylophone falls in the category of
a)
Idiophones
b)
Membranophones
c)
Chrodophones
d)
Aerophones
9.
What is the other name for quality of sound ?
a)
Pitch
b)
Amplitude
c)
Timbre
d)
Frequency
10.
Sound is the form of energy that helps us to
a)
Dance
b)
Communicate
c)
Swim
d)
Cook
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