Tag: sound is produced by a vibrating body

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Questions Related to sound is produced by a vibrating body

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.

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

If we tighten the stretched strings of guitar, then pitch will be 

  1. lower

  2. higher

  3. same

  4. dependent upon size of instrument
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pitch of sound depends on frequency. The frequency of sound emitted by a stretched string depends upon the tension on the string.  Greater tension means greater frequency, which means greater pitch. When we tighten the string of an instrument we are increasing the tension on the string. This increases the frequency. Hence pitch increases

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

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

  1. the two metal prongs of that tuning fork

  2. the length of the prongs of that tuning fork

  3. the speed of the molecules hit the tuning fork

  4. both A and B
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

tuning  fork has two metal prongs which are vibrated and sound is produced so the answer is A.

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

  1. Drum- Stretched Membrane

  2. Tabla - Stretched Membrane

  3. Mridangam - Stretched Membrane

  4. None of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

all the instruments given here correctly matches with their vibrating parts.

so the answer is D.