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

The voices of men, women and children are different due to difference in:

  1. larynx

  2. lungs

  3. vocal coards

  4. wind pipe
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Larynx is responsible for production of sound , and vocal chords are placed inside the larynx , which are responsible for shrill and grave sound , that makes the sound of a lady shrill and of a man , grave .

Lungs filters the oxygen from air .
Wind pipe is the path of air towards the lungs .

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

What is the name of the strings which vibrate in our voice box when we talk?

  1. oesophagus

  2. pharyngeal slits

  3. vocal cords

  4. all
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The name of the strings which vibrate in our voice box when we talk is vocal cords. These are two bands of elastic tissue located side by side in the voice box (larynx) just above the trachea.

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

State whether given statement is True or False
In humans, sound is produced because of the vibration of the larynx.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The larynx is located at the upper end of the windpipe. The vocal chords attached to the larynx, stretch it to create a passage for air. When air passes through this passage, the vocal chords vibrate and produce sound.

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

On what does the quality of voice depend ?

  1. Thickness of vocal chords

  2. Length of local chords

  3. Stiffness of vocal chords

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

The quality of voice depends on the length, thickness and stiffness of the vocal chords. Tight, thin and short vocal chords produce high pitched voice like that of females. Loose, thick and long vocal chords produce low - pitched voice like that of men.

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

Muscles attached to the vocal cords can make them

  1. tight only

  2. loose only

  3. both loose and tight as per requirement

  4. neither loose nor tight
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The muscles attached to the vocal cords can expand and contract, thus making them tight and loose. The voice quality changes depending on whether the vocal cords are tight or loose.