Tag: world of sounds

Quizzes (14) Questions (102)

Questions Related to world of sounds

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

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

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
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).

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

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?

  1. body of whistle

  2. air

  3. mouth of the person

  4. all ofthe above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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

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

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

  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.
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

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

  1. the wire

  2. the box of the violin

  3. both the wire and the box

  4. none of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In a violin, the strings (wires) vibrate when played, and these vibrations are amplified by the hollow wooden body (the box). Both components are essential for producing the sound.

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

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

  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.
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

Which of the following musical instruments is a wind instruments?

  1. Flute

  2. Drums

  3. Piano

  4. All of these
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

Why does a guitarist need to tighten the strings of the guitar to get the correct music and 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.
Reveal answer Fill a bubble to check yourself
A Correct answer
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.