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WorksheetsSound
Total questions: 20
Worksheet time: 13mins
Sound is a_________.
work
energy
force
pressure
The hearing range of human ear is_______?
20 Hz to 20,000 Hz
less than 20 Hz
more than 20,000 Hz
20 Hz to 25,000 Hz
Pitch of sound is determined by its
frequency
speed
amplitude
loudness
The frequency of subsonic sound is
more than 20 Hz
100 Hz
less than 20 Hz
more than 20,000 Hz
1 Hertz is equal to
1 vibration per minute
10 vibrations per minute
60 vibrations per minute
600 vibrations per minute
Sound cannot travel through
Solid
Liquid
Gas
Vaccum
The sound in the audible range is called
ultrasonic sound
sonic sound
subonic sound
light sound
A pendulum oscillates 20 times in 4 seconds. Find its time period.
0.05 sec.
0.001 sec.
0.2 sec.
0.1 sec
The number of vibrations made by a vibrating body in one second is
frequency
noise
loudness
pitch
The maximum displacement of a body from its mean position is called
amplitude
oscillation
periodic motion
frequency
The velocity of sound at 20°C is approximately
3400 m/sec.
340 m/sec.
430 m/sec
304 m/sec.
Sound is produced by
Non-Vibrating objects only
Vibrating and non- vibrating objects
Vibration has no relation to sound
Vibrating objects only
Sound cannot travel through
vacuum
air
water
solids
Vibration is also known as
Vibratory motion
Translatory motion
Oscillatory motion
None of these
Frequency is expressed in
Kilometer
Hertz
gram
Degree centigrade
Loudness of sound depend on …………….
(a)
The property of sound that is used by animals to find their way and locate their food is………..
(a)
The two kinds of sounds we cannot hear are ……………. And ………….
(a)
Noise is produced by……………..
(a)
Speed of sound highest in …………… medium. And it is (a)
