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WorksheetsSound Class VII
Total questions: 14
Worksheet time: 8mins
In which of the following medium speed of sound is maximum?
Steel
wood
Water
Air
Helium
In which of the following medium speed of sound is more?
Humid Air
Moist Air
Dry Air
Normal air
The audible range of human ear is
Less than 20 Hz
20Hz - 25000 Hz
20Hz - 20000Hz
More than 20000 Hz
Large amplitude of sound vibrations will produce
Shriek sound
Loud Sound
Faint sound
Flat sound
The pitch of sound depends on
Frequency
Amplitude
Both of these
None of these
Loudness of sound is determined by
pitch
frequency
amplitude
Time period
The number of vibrations made by a vibrating body in one second is
pitch
noise
Timbre
Frequency
The voice of ladies is shrill because of
low pitch
high pitch
high amplitude
low amplitude
The vibrations of frequency greater than 20,000 Hz are called ____ vibrations.
ultrasonic
infrasonic
supersonic
sonic
Two sound waves A and B are shown in the figure. Identify the correct option:
Wave A has higher frequency than Wave B
Wave B has higher frequency than Wave A
Wave B produces louder sound than wave A
The Time period of Wave A is smaller
A part of sound waves where the particles of medium are farther away from normal particles is called
Crest
Trough
Rarefaction
Compression
Compression is a region of
High pressure
Low pressure
No Pressure
Atmospheric pressure
Which two waves represents sound of same loudness but different pitch?
A
B
C
D
Which two waves represents sound of same Frequency but different loudness?
A
B
C
D
