Smartindia Classroom
CONTENTS
English
Maths
Physics
Chemistry
Biology
Computer
Back to home
Start Practice
Question-1
When we touch the ringing bell we can feel the:
(A)
Vibrations
(B)
Heat
(C)
Pressure
(D)
Air
Question-2
The maximum displacement of a vibrating body from its mean position is called:
(A)
Time period
(B)
Frequency
(C)
Amplitude
(D)
Displacement
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
Sounds of frequency more than 20000 Hz are called:
(A)
Audible sound
(B)
Infrasonic sound
(C)
Ultrasonic sound
(D)
Echo
Question-5
Sound needs which of the following for propagation?
(A)
Air
(B)
Vacuum
(C)
Liquid
(D)
Medium
Question-6
Sound travels at different speeds in:
(A)
Air
(B)
Different materials
(C)
Vacuum
(D)
Glass
Question-7
Which is produced due to regular and non - periodic vibrations?
(A)
Noise
(B)
Music
(C)
Reverberation
(D)
Echo
Question-8
Speed of sound in air is:
(A)
100 m/s
(B)
330 km/s
(C)
330 m/s
(D)
343 m/s
Question-9
The distinct reflected sound from any rigid surface is called:
(A)
Reverberation
(B)
Echo
(C)
Radar
(D)
Ultrasonic sound
Question-10
The audible frequency of human ear is:
(A)
From 20 Hz to 20000 Hz
(B)
Below 20 Hz
(C)
Above 20,000 Hz
(D)
All the above
Your Score 0/10
Click
here
to see your answersheet and detailed track records.
Cambridge Secondary Grade 8
IGCSE
Practice in Related Chapters
Weight and Stretching
Pressure and liquid pressure
Motion and Energy
Pressure and Moments
Electricity
Energy
Sound
Measurement
Energy and Electricity
The Solar System and Beyond
Heat
Forces
Speed
A closer look at Heat Energy
Magnetism
Light
Powered By