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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
Which of the following is due to regular and periodic vibration?
(A)
Noise
(B)
Music
(C)
Echo
(D)
Reverberation
Question-3
The only source of sound that produces pure notes is:
(A)
Human mouth
(B)
Tuning fork
(C)
Echo
(D)
Sound in water column
Question-4
The number of oscillations per second is called:
(A)
Time period
(B)
Frequency
(C)
Amplitude
(D)
Vibration
Question-5
Amplitude and wavelength are the characteristics of:
(A)
Sound
(B)
Light
(C)
Wave
(D)
Force
Question-6
The distinct reflected sound from any rigid surface is called:
(A)
Reverberation
(B)
Echo
(C)
Radar
(D)
Ultrasonic sound
Question-7
Sound needs which of the following for propagation?
(A)
Air
(B)
Vacuum
(C)
Liquid
(D)
Medium
Question-8
In human beings, the sound is produced by the:
(A)
Ear drum
(B)
Ear tube
(C)
Voice box
(D)
Outer ear
Question-9
Sound travels very much faster in:
(A)
Solids than liquids
(B)
Liquids than solids
(C)
Gases than liquids
(D)
Gases than solids
Question-10
Speed of sound in air is:
(A)
100 m/s
(B)
330 km/s
(C)
330 m/s
(D)
343 m/s
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Cambridge Secondary Grade 8
IGCSE
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