Sound Test

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Sound Test - 40

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Weekly Quiz Competition

Question 1
1 / -0

Name the instruments for which more than one part is responsible for the production of sound.

A
Tabla

B
Violin

C
Guitar

D
All of the above

Solution

In violin and guitar, only the string is responsible for sound production. Whereas in Tabla, the diaphragm, as well as the air in the Tabla, produce sound.
Question 2
1 / -0

Tuning fork causes them to vibrate and produce sound. This is due to:

A
The two metal prongs of that tuning fork

B
The length of the prongs of that tuning fork

C
The speed of the molecules hit the tuning fork

D
Both $$A$$ and $$B$$

Solution

Sound is produced due to the vibration of different objects. The two metal prongs of the tuning fork vibrate to produce sound.
Question 3
1 / -0

Which of the following vibrating parts of instrument is not matched with the respective instrument?

A
Drum- Stretched Membrane

B
Tabla - Stretched Membrane

C
Mridangam - Stretched Membrane

D
None of the above

Solution

all the instruments given here correctly matches with their vibrating parts.
so the answer is D.
Question 4
1 / -0

A chain of hydrogen bombs is being exploded every time in the sun due to the fusion process, yet you do not hear the sound, because.

A
The sound so generated is absorbed by various layers of the sun

B
The sound so generated dissipates away

C
The sun is very far away

D
The space between the sun and the earth is void

Solution

The space between the sun and the earth is void. Sound needs a medium to propagate. We cannot hear any sound on the surface of earth as there is no medium in between.
Question 5
1 / -0

In violin there is part which is used to adjust the string for getting right pitch. What is the name of that part?

A
Tuning peg

B
Volute

C
Finger board

D
Neck

Solution

Tuning pins or pegs are used on instruments where there is no space for a knob on each string, such as pianos and harps and violins. Turning the peg or pin tightens or loosens the string. Some tuning pegs and pins are tapered, some threaded. Some tuning pegs are ornamented with shell, metal, or plastic inlays, beads (pips) or rings.
Tuning peg is used to adjust the string for getting right pitch in violin
so the answer is A.
Question 6
1 / -0

When we hear a sound, we can identify it source from:

A
The frequency of the sound

B
The amplitude of the sound

C
The wavelength of the sound

D
The overtones present in the sound

Solution

The frequency of sound is the characteristic of sound waves that helps us to distinguish between two different sounds. For example, the sound produced by a man generally has a low frequency (i.e. low pitch) whereas that produced by a woman have a higher frequency (i.e. sharp tone). Thus we can distinguish between two sounds by hearing the frequency (pitch).
Question 7
1 / -0

The amplitude of vibratory motion is measured in units of

A
length

B
time

C
speed

D
Hz

Solution

Amplitude is the maximum displacement of a particle undergoing vibration. Thus, it will be measured in terms of length.

The correct option is (a)
Question 8
1 / -0

If A is the amplitude of vibration, then the time taken by a wave to cover a distance of 4A is known as

A
Time period

B
Half the time period

C
1 s

D
0.1 s

Solution

Time required to complete one vibration is T secs

In one full vibration, the particle covers a total distance of 4A

Thus, time required to cover a total distance of 4A during one vibration is T secs or 1 Time period

The correct option is (a)

Question 9

1 / -0

Match the following columns and select the correct option from the codes given below.

Column I	Column II
(i) Pressure	(p) Pattern formed due to multiple reflections
(ii) Decibel	(q) Unit of loudness
(iii) Richter	(r) Force per unit area
(iv) Kaleidoscope	(s) Scale to measure the intensity of the earthquake

(i) - (r), (ii) - (q), (iii) - (s), (iv) - (p)

(i) - (q), (ii) - (p), (iii) - (s), (iv) - (r)

(i) - (p), (ii) - (s), (iii) - (r), (iv) - (q)

(i) - (p), (ii) - (r), (iii) - (s), (iv) - (q)

Solution

Question 10
1 / -0

A small bee produces sound while it moves. The sound is created due to

A
Grinding its teeth as it moves

B
Friction due to air

C
Flapping of wings

D
Sound due to its vocal chord

Solution

Sound is produced due to vibration or flapping of wings. When the bee moves its wings up and down then it creates alternative compression and rarefaction in the air that can be a course of sound.

The correct option is (c)

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Re-Attempt Weekly Quiz Competition

Sound Test - 40

Result

Sound Test - 40

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SHARING IS CARING

Question 1

Tabla

Violin

Guitar

All of the above

Solution

Question 2

The two metal prongs of that tuning fork

The length of the prongs of that tuning fork

The speed of the molecules hit the tuning fork

Both $$A$$ and $$B$$

Solution

Question 3

Drum- Stretched Membrane

Tabla - Stretched Membrane

Mridangam - Stretched Membrane

None of the above

Solution

Question 4

The sound so generated is absorbed by various layers of the sun

The sound so generated dissipates away

The sun is very far away

The space between the sun and the earth is void

Solution

Question 5

Tuning peg

Volute

Finger board

Neck

Solution

Question 6

The frequency of the sound

The amplitude of the sound

The wavelength of the sound

The overtones present in the sound

Solution

Question 7

length

time

speed

Hz

Solution

Question 8

Time period

Half the time period

1 s

0.1 s

Solution

Question 9

(i) - (r), (ii) - (q), (iii) - (s), (iv) - (p)

(i) - (q), (ii) - (p), (iii) - (s), (iv) - (r)

(i) - (p), (ii) - (s), (iii) - (r), (iv) - (q)

(i) - (p), (ii) - (r), (iii) - (s), (iv) - (q)

Solution

Question 10

Grinding its teeth as it moves

Friction due to air

Flapping of wings

Sound due to its vocal chord

Solution

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