Worksheets8Cass - Sound - Test 1
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
Sound will produce,when a body
a)
moves
b)
falls
c)
flies
d)
vibrates
2.
The number of oscillations per second is called
a)
Amplitude of oscillation
b)
Pitch of oscillation
c)
Frequency of oscillation
d)
None of the above
3.
When the amplitude of vibration is large, sound produced is
a)
No sound
b)
feeble
c)
loud
d)
No relation between amplitude and sound
4.
Frequency is expressed in
a)
Kilometer
b)
Hertz
c)
gram
d)
Degree centigrade
5.
Above _____ dB the sound becomes physically painful
a)
60
b)
40
c)
120
d)
80
6.
Sound cannot travel through
a)
vacuum
b)
air
c)
water
d)
solids
7.
An ultrasound equipment works at frequency
a)
Higher than 20,000 Hz
b)
Higher than 10,000 Hz
c)
Lower than 20,000 Hz
d)
Lower than 10,000 Hz
8.
Vibration is also known as
a)
Vibratory motion
b)
Translatory motion
c)
Oscillatory motion
d)
None of these
9.
Human can hear sound in the range of
a)
200-2000 Hz
b)
20-20,000 Hz
c)
2-20000 Hz
d)
2000-200000 Hz
10.
Sound is produced by
a)
Non-Vibrating objects only
b)
Vibrating and non- vibrating objects
c)
Vibration has no relation to sound
d)
Vibrating objects only
100 %
