Tag: production and propagation of sound

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Questions Related to production and propagation of sound

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.

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 is the vibrating part of Saxophone?

  1. Stretched -Membrane

  2. Stretch-String

  3. Air column

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

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 is the vibrating part of Banjo?

  1. Stretched- Membrane

  2. Stretched- String

  3. Air column

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

String instruments are those which are played by manually vibrating the strings made of metal. When these strings are made to vibrate they emit a sound of a specific tone and produce music. Examples of such instruments are Banjo, guitar,  violin and so on.