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Question-1
The maximum displacement of a vibrating body from its mean position is called:
(A)
Time period
(B)
Frequency
(C)
Amplitude
(D)
Displacement
Question-2
Sound needs which of the following for propagation?
(A)
Air
(B)
Vacuum
(C)
Liquid
(D)
Medium
Question-3
Which is produced due to regular and non - periodic vibrations?
(A)
Noise
(B)
Music
(C)
Reverberation
(D)
Echo
Question-4
The number of oscillations per second is called:
(A)
Time period
(B)
Frequency
(C)
Amplitude
(D)
Vibration
Question-5
In which of the following does sound make vibrations to the inner ear?
(A)
Larynx
(B)
Voice box
(C)
Eardrum
(D)
Auditory nerve
Question-6
Speed of sound in air is:
(A)
100 m/s
(B)
330 km/s
(C)
330 m/s
(D)
343 m/s
Question-7
Which of the following is due to regular and periodic vibration?
(A)
Noise
(B)
Music
(C)
Echo
(D)
Reverberation
Question-8
Sounds of frequency more than 20000 Hz are called:
(A)
Audible sound
(B)
Infrasonic sound
(C)
Ultrasonic sound
(D)
Echo
Question-9
Which of the following defines the shield or flatteners of a musical sound?
(A)
Frequency
(B)
Pitch
(C)
Amplitude
(D)
Period
Question-10
Sound is produced due to:
(A)
Stretching
(B)
Vibration
(C)
Reflection
(D)
Expansion
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Cambridge Secondary Grade 8
IGCSE
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