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WorksheetsSOUND
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
A vibrating body produces
a)
sound
b)
noise
c)
music
d)
rythm
2.
sound cannot travel in
a)
solids
b)
liquids
c)
vaccum
d)
gas
3.
The intensity of sound is measured in
a)
Km
b)
dB
c)
mm
d)
cm
4.
Pitch or shrillness is determined by
a)
amplitude
b)
frequency
c)
wavelength
d)
none of the above
5.
The number of vibrations per second is called
a)
wavelength
b)
amplitude
c)
frequency
d)
none of the above
6.
The to and fro motion of a body is called
a)
amplitude
b)
frequency
c)
vibration
d)
none of the above
7.
The maximum displacement of a vibrating body is called
a)
frequency
b)
amplitude
c)
wavelength
d)
none of the above
8.
length of vocal cards in men is nearly
a)
20 mm
b)
15 mm
c)
10 mm
d)
25 mm
9.
The smallest audible sound is
a)
10 dB
b)
0 dB
c)
20 dB
d)
30 dB
10.
Range of audible frequency is
a)
less than 20 cycles/ sec
b)
20 - 20000 cycles / sec
c)
greater than 20000 cycles / sec
d)
none of the above
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