Sound Test

Result

Sound Test - 28

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

What is necessary for the production and transmission of sound?

A
Medium

B
Acceleration

C
Reciever

D
None of the above

Solution

The vibrations that create sound must travel through a medium, such as air or water, or anything made of molecules.
Question 2
1 / -0

Which figure indicates vibrations of sound produced by noise

A
(i) only

B
(ii) only

C
(i) and (ii)

D
None

Solution

Noise is an unwanted disturbance in an electrical signal. Noise generated by electronic devices varies greatly as it is produced by several different effects. In communication systems, noise is an error or undesired random disturbance of a useful information signal.
Question 3
1 / -0

No sound is possible in a .......... .

A
Vacuum

B
Solid

C
Gases

D
Medium

Solution

Sound is a mechanical wave which propagate in medium like solid, liquid and gas. In vacuum, there is no medium is present hence no sound is possible in a vacuum.
Question 4
1 / -0

How are noise and music interrelated?

A
Noise is unpleasant whereas music is pleasant

B
Noise pollution causes health hazards whereas music has soothing effect

C
When musical instruments produce loud sound it becomes noise

D
All of the above

Solution

The unpleasant sounds are called noise. Pleasant sound is called music. Noise pollution may cause many health hazards like lack of sleep, hypertension, etc. Music has a soothing effect. Music can also become noise when the musical instruments produce loud sounds.
Question 5
1 / -0

Unwanted sound is called .......... .

A
Echo

B
Noise

C
Decibel

D
Vibration

Solution

Unwanted or unpleasant sounds are known as noise. Sounds that are melodious and pleasing to the ear are known as music. (g) True. Unwanted or unpleasant sounds are known as noise. If one is subjected to loud unpleasant sounds continuously for a long time, then it may cause temporary hearing impairment.
Question 6
1 / -0

The audible range of sound for human is:

A
$$20Hz\ to\ 20000Hz$$

B
$$20Hz\ to\ 2000Hz$$

C
$$20Hz\ to\ 200000Hz$$

D
$$5Hz\ to\ 10000Hz$$

Solution

Humans can detect sounds in a frequency range from about $$20\ Hz \ \ to \ \ 20\ kHz$$. (Human infants can actually hear frequencies slightly higher than $$20\ kHz$$, but lose some high-frequency sensitivity as they mature; the upper limit in average adults is often closer to $$15–17\ kHz$$)
Question 7
1 / -0

Why can supernova explosions in space be seen but not heard on earth?

A
Because sound cannot travel in vacuum but light can.

B
Because light cannot travel in vaccum but sound can

C
Because sound produced is beyond audible range of human ears.

D
None of these.

Solution

Light does not require a medium to travel through but sound requires a medium to travel, so it cannot be transmitted through space. That is why we are able to see the supernova explosions but cannot hear them.
Question 8
1 / -0

Pattern of wave in noise is____.

A
Regular

B
Irregular

C
Sinusoidal

D
None of the above

Solution

Wave pattern is regular in music which feels pleasant to listening while it is quite irregular in noise which creates irritation.
Question 9
1 / -0

The highness or lowness of sound is -

A
Frequency

B
Pitch

C
Vibrations

D
None
Question 10
1 / -0

I am the cause of production of all sounds.

A
Vibrations

B
Amplitude

C
Frequency

D
Echo

Solution

Sound is produced due to the vibration of different objects.
The magnitude of the maximum disturbance in the medium on either side of the mean value is called the amplitude of the wave.
The number of complete oscillations per unit time is called the frequency.
Echo is the repetition of sound caused by the reflection of sound.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Sound Test - 28

Result

Sound Test - 28

Score

-

Rank

-

SHARING IS CARING

Question 1

Medium

Acceleration

Reciever

None of the above

Solution

Question 2

(i) only

(ii) only

(i) and (ii)

None

Solution

Question 3

Vacuum

Solid

Gases

Medium

Solution

Question 4

Noise is unpleasant whereas music is pleasant

Noise pollution causes health hazards whereas music has soothing effect

When musical instruments produce loud sound it becomes noise

All of the above

Solution

Question 5

Echo

Noise

Decibel

Vibration

Solution

Question 6

$$20Hz\ to\ 20000Hz$$

$$20Hz\ to\ 2000Hz$$

$$20Hz\ to\ 200000Hz$$

$$5Hz\ to\ 10000Hz$$

Solution

Question 7

Because sound cannot travel in vacuum but light can.

Because light cannot travel in vaccum but sound can

Because sound produced is beyond audible range of human ears.

None of these.

Solution

Question 8

Regular

Irregular

Sinusoidal

None of the above

Solution

Question 9

Frequency

Pitch

Vibrations

None

Question 10

Vibrations

Amplitude

Frequency

Echo

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.