Tag: world of sounds

Questions Related to world of sounds

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

physics world of sounds sound produced by humans propagation of sound production and propagation of sound

  1. The frequency of the sound

  2. The amplitude of the sound

  3. The wavelength of the sound

  4. The overtones present in the sound

Show answer
Correct Option: A
Explanation:

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

Which of the following instrument is not a percussion instrument?

physics world of sounds sound is produced by a vibrating body propagation of sound production and propagation of sound

  1. Mri dangam

  2. Dholak

  3. Ghatam

  4. Tabla

Show answer
Correct Option: C
Explanation:

Ghatam is not a percussion instrument, whereas it is a ghana vadya.

The membrane of a drum vibrates to produce sound. Similarly the string of a sitarvibrates to produce sound. Based on these two examples answer the following question. Which part of a whistle vibrates to produce sound?

physics world of sounds sound is produced by a vibrating body propagation of sound production and propagation of sound

  1. body of whistle

  2. air

  3. mouth of the person

  4. all ofthe above

Show answer
Correct Option: B
Explanation:

The vibrations produced in the air while blowing a whistle, produces sound.

In Dholak sound produce due to which of the following?

physics world of sounds sound is produced by a vibrating body propagation of sound production and propagation of sound

  1. Stretched membrane  

  2. Stretched strings

  3. Vibration of  air

  4. Air column 

Show answer
Correct Option: A
Explanation:

When the sticks hit on the surface of the membrane, the membrane vibrates and results in the production of sounds.

So answer is A

What do you think a tabla player does to increase the pitch of the sound produced?

physics world of sounds sound is produced by a vibrating body propagation of sound production and propagation of sound

  1. He strikes the table skin harder.

  2. The pitch cannot be changed in a table.

  3. He tightens the skin by stretching the string around it.

  4. He gets a bigger tabla.

Show answer
Correct Option: C
Explanation:

Answer is C.

The top of the tabla drum is covered with a stretched, layered leather membrane held in place by leather braces. The wooden pegs between the braces and the drum adjust the tension in the braces, thus controlling the pitch of the instrument.
Hence, to increase the pitch of the sound produced the player tightens the skin by stretching the string around it.

The part of the violin which vibrates while playing it is :

physics world of sounds sound is produced by a vibrating body propagation of sound production and propagation of sound

  1. the wire

  2. the box of the violin

  3. both the wire and the box

  4. none of the above

Show answer
Correct Option: C

When a glass filled with water is struck with a stick, ripples are produced in the water. This indicates that

physics world of sounds sound is produced by a vibrating body propagation of sound production and propagation of sound

  1. the glass is not vibrating.

  2. the glass may or may not be vibrating.

  3. the glass is vibrating.

  4. none of the above is true.

Show answer
Correct Option: C
Explanation:

When a glass filled with water is struck with a stick, it vibrates and this vibration creates ripples in the water. These ripples prove that the glass vibrates. Also, a sound is produced due to the vibration of the glass.

Which of the following musical instruments is a wind instruments?

physics world of sounds sound is produced by a vibrating body propagation of sound production and propagation of sound

  1. Flute

  2. Drums

  3. Piano

  4. All of these

Show answer
Correct Option: A
Explanation:

Flute is played by blowing air into the instrument. So, it is a blow / wind instrument. Drums are played by hitting on its stretched membrane. So, it is a beat instrument.

Piano is played by hitting stretched strings inside with hammers. So, piano is a string instrument.

Why does a guitarist need to tighten the strings of the guitar to get the correct music and sound ?

physics world of sounds sound is produced by a vibrating body propagation of sound production and propagation of sound

  1. Tight strings force the entire guitar to vibrate.

  2. It is easy to play a guitar with tight strings.

  3. Tight strings look good and enhance the look of the guitar.

  4. It is not important to tighten the string.

Show answer
Correct Option: A
Explanation:

When a guitarist plucks the strings of a guitar, the strings vibrate and force the entire guitar to vibrate as well. The sound that we hear is produced due to the vibration of the entire instrument. If the strings are not tight enough the entire instrument may not vibrate and the correct sound may not be obtained.

One of vibrations of strings makes

physics world of sounds sound is produced by a vibrating body propagation of sound production and propagation of sound

  1. pitch of the instrument

  2. pitch of the note

  3. scale of the note

  4. pitch of the scale

Show answer
Correct Option: B
Explanation:

vibrations in the string makes or produces notes .

 notes are measured in terms of  pitch of the note.
so the answer is B.