Tag: physics

Questions Related to physics

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

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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

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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.

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

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

  1. lower

  2. higher

  3. same

  4. dependent upon size of instrument

Show answer
Correct Option: B
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

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

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

  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

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Correct Option: A
Explanation:

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

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

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

  1. Drum- Stretched Membrane

  2. Tabla - Stretched Membrane

  3. Mridangam - Stretched Membrane

  4. None of the above

Show answer
Correct Option: D
Explanation:

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

so the answer is D.

Which of the following is the vibrating part of Saxophone?

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

  1. Stretched -Membrane

  2. Stretch-String

  3. Air column

  4. None of the above

Show answer
Correct Option: C
Explanation:

Wind instruments are those which are played by blowing air into them through the human mouth.  They include saxophone,  trumpet, flute etc. In any wind instrument,  it is the air column which vibrates with a specific tone and produces music.

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

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

  1. Tunning peg

  2. Volute

  3. Finger board

  4. Neck

Show answer
Correct Option: A
Explanation:

tunning peg is used to adjust the string for getting right pitch in violin

so the answer is A.