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12 questions
The loudness of a sound depends on:
Amplitude
Frequency
Time period
Speed
The loudness of sound is measured in units of
Decibel (dB)
Hertz (Hz)
Metre (m)
Metre/Second (m/s)
Pitch of sound is determined by its
frequency
amplitude
speed
loudness
Sound is a kind of
work
energy
force
pressure
Human can hear sound in the range of
200-2000 Hz
20-20,000 Hz
2-20000 Hz
2000-200000 Hz
The number of oscillations per second is called
Amplitude of oscillation
Pitch of oscillation
Frequency of oscillation
None of the above
Sound cannot travel through
vacuum
air
water
solid
The velocity of sound at 20°C is approximately
3400 m/sec
340 m/sec
430 m/sec
304 m/sec
The number of vibrations made by a vibrating body in one second is
frequency
noise
loudness
pitch
The voice box is also called as
stomach
heart
larynx
mouth
The sound in the audible range is called
ultrasonic sound
sonic sound
subonic sound
light sound
The maximum displacement of a body from its mean position is called
amplitude
oscillation
periodic motion
frequency
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