As the sound wave propagates, the particles of the medium only vibrate about their mean position but do not leave their position.
True
False
Sound propagates only in front direction of the source.
True
False
The pitch of a sound determines its shrillness or flatness.
True
False
Tight strings produce flat sounds.
True
False
The frequency of a buzzing mosquito is lesser than the roaring of a lion.
True
False
The quality of sound produced by any two instruments can be same or different.
True
False
The sound produced by an instrument is called a monotone.
True
False
The sound produced by any two musical instruments can have the same fundamental but can never have the same harmonics.
True
False
Click the correct answer.
What are the regions formed during propagation of a sound wave where air particles are spread apart called?
Compressions
Rarefactions
Suppressions
Progressions
Which of the following characteristics of sound determines that the energy is carried by sound waves?
Loudness
Pitch
Quality
Timbre
Which of the following is the correct order of the speed of sound in solids, liquids and gases (where S, L and G represent speed of sound in solid, liquid and gas respectively)?
S > L > G
S < L < G
S > L = G
S < L = G
What happens to the loudness if we reduce the amplitude of the sound wave to its one-third?
Loudness becomes 9 times.
Loudness becomes 3 times.
Loudness becomes 1/9 times.
Loudness becomes 1/3 times.
Which of the following is used to produced a monotone?
Tuning fork
Clarinet
Humans
Guitar
Which of the following is the other name used for timbre?
Loudness
Pitch
Frequency
Quality
Click each box on the left and then click the matching box on the right.
Match the columns by dragging.
Flat sound
Shrill sound
Monotone
Note
Number of waves in one second
Low frequency
High frequency
Single frequency
Mixture of frequencies
Frequency
Click the correct answer.
The pitch of a sound will be high, if
is high.
amplitude
time period
frequency
loudness
The pitch of a stringed instrument can be increased by
.
tightening strings
reducing tightening of strings
changing material of the body of the instrument
increasing length of the strings
Frequency is measured in
.
metre
decibel
hertz
second
The amplitude of a sound wave is a direct measure of its
.
amplitude
time period
frequency
loudness
The sound produced by an instrument is a complex sound called a
.
amplitude
note
harmonics
monotone
The amplitude of harmonics will always be
than the amplitude of the fundamental.
