Sound Test

Result

Sound Test - 20

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Weekly Quiz Competition

Question 1
1 / -0

Sound is produced by vibration. Define vibration.

A
Vibration is a rapid to and fro motion of the object.

B
Vibration is a circular motion of the object.

C
Vibration is a translational motion of the object.

D
None of the above

Solution

Vibration is defined as a rapid to and fro motion of the object.
Question 2
1 / -0

What is the process, of converting the air pressure from the lungs into audible vibrations, called?

A
Excitation

B
Vibration

C
Phonation

D
None

Solution

The process of converting the air pressure from the lungs into audible vibrations is called phonation. When the air passes through the elastic vocal folds and causes them to vibrate, the type of phonation is called voicing.
Question 3
1 / -0

Which body part is useful in producing sound of the voice in humans?

A
Vocal folds in larynx

B
Lungs

C
Wind pipe

D
Throat

Solution

Humans have larynx which consists of vocal folds which helps in producing sound which we call voice.
Question 4
1 / -0

What does music comprise of?

A
Mixture of frequencies, regular waveform and no sudden changes in amplitude or wavelength, rich quality/ timber

B
Low Frequency, regular waveform and no sudden changes in amplitude or wavelength, poor quality/ timber

C
High Frequency, Irregular waveform and no sudden changes in amplitude or wavelength

D
Low Frequency, Irregular waveform and sudden changes in amplitude or wavelength

Solution

Music is harmonious sound described as a mixture of frequencies, regular waveform and with no sudden changes in amplitude or wavelength.

The quality or timber of sound is that characteristic which enables us to distinguish one sound from another having the same pitch and loudness. Music is pleasant to hear and said to be of a rich quality. A sound of single frequency is called a tone. Music is produced due to a mixture of several frequencies called a note and is pleasant to listen to. Noise is unpleasant to the ear!
Question 5
1 / -0

The unwanted sound, usually very loud and non-uniform, is called:

A
music

B
noise

C
a combination of music and noise

D
none of these

Solution

Noise is an unwanted sound, usually very loud and non-uniform and is painful to hear.
Question 6
1 / -0

If pitch of a sound is pleasing to our ears, the sound is:

A
Music

B
Noise

C
A combination of music and noise

D
None of these

Solution

Pitch of music is pleasing to our ears.
Question 7
1 / -0

When sound travels through air, the air particles:

A
vibrate along direction of wave propagation

B
vibrate but not in any fixed direction

C
vibrate perpendicular to direction of wave propagation

D
do not vibrate

Solution

Air have bulk property so it only transfers longitudinal wave. A sound wave in air propagates as a longitudinal wave, in the form of compression and rarefaction so medium particles vibrate in the direction of wave propagation.

Hence Option A
Question 8
1 / -0

If a musical instrument is played on very high pitch then its frequency is:

A
same

B
high

C
low

D
zero

Solution

Pitch is a perceptual property of sounds. High pitch represents high frequency and vice-versa. When a musical instrument is played on a very high pitch its mean that frequency of produced sound will be high.
Question 9
1 / -0

The art of arranging and combining sounds in order to create harmonious melody is:

A
Noise

B
Music

C
A combination of noise and music

D
None of these

Solution

Music is the art of arranging and combining sounds to create a harmonious melody. Music is pleasant to hear.
Question 10
1 / -0

Which of the following waves do not require any kind of medium to propagate?

A
Sound Waves

B
Earthquake Waves

C
Light Waves

D
Water surface waves

Solution

Light waves, being electromagnetic waves, do not require any kind of medium to propagate.

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Re-Attempt Weekly Quiz Competition

Sound Test - 20

Result

Sound Test - 20

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Rank

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SHARING IS CARING

Question 1

Vibration is a rapid to and fro motion of the object.

Vibration is a circular motion of the object.

Vibration is a translational motion of the object.

None of the above

Solution

Question 2

Excitation

Vibration

Phonation

None

Solution

Question 3

Vocal folds in larynx

Lungs

Wind pipe

Throat

Solution

Question 4

Mixture of frequencies, regular waveform and no sudden changes in amplitude or wavelength, rich quality/ timber

Low Frequency, regular waveform and no sudden changes in amplitude or wavelength, poor quality/ timber

High Frequency, Irregular waveform and no sudden changes in amplitude or wavelength

Low Frequency, Irregular waveform and sudden changes in amplitude or wavelength

Solution

Question 5

music

noise

a combination of music and noise

none of these

Solution

Question 6

Music

Noise

A combination of music and noise

None of these

Solution

Question 7

vibrate along direction of wave propagation

vibrate but not in any fixed direction

vibrate perpendicular to direction of wave propagation

do not vibrate

Solution

Question 8

same

high

low

zero

Solution

Question 9

Noise

Music

A combination of noise and music

None of these

Solution

Question 10

Sound Waves

Earthquake Waves

Light Waves

Water surface waves

Solution

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