Tag: production and propagation of sound

Questions Related to production and propagation of sound

The sound of the human voice is produced due to

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

  1. movement of tongue

  2. vibration in the pharynx

  3. vibration in the vocal cord

  4. vibration below tongue

Show answer
Correct Option: C
Explanation:

Vibration means rapid to and fro movement of an object. Sound of the human voice is produced due to vibrations in the vocal cords.

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

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

  1. True

  2. False

Show answer
Correct Option: B
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.

On what does the quality of voice depend ?

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

  1. Thickness of vocal chords

  2. Length of local chords

  3. Stiffness of vocal chords

  4. All of these

Show answer
Correct Option: D
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.

Muscles attached to the vocal cords can make them

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

  1. tight only

  2. loose only

  3. both loose and tight as per requirement

  4. neither loose nor tight

Show answer
Correct Option: C
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.

Where is the voice box located in the body ?

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

  1. At the upper end of the windpipe

  2. At the upper end of the lungs

  3. At the lower end of the windpipe

  4. In between the oesophagus

Show answer
Correct Option: A
Explanation:

The larynx or the voice box is located at the upper end of the windpipe.

With the length of vocal chord, voice quality

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

  1. changes

  2. remains same

  3. may or may not change

  4. remains same but loudness changes

Show answer
Correct Option: A
Explanation:

The voice quality changes as per the length of the vocal chords. Men have about 20 mm long vocal chords, whereas women have about 15 mm long vocal chords. Children have very short vocal chords. That attributes to the different voices of men, women and children.

Fill in the blank.

The length of the vocal chords in men and women is approximately _____ and _____ respectively.

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

  1. 15 mm, 20 mm

  2. 20 mm, 30 mm

  3. 20 mm, 15 mm

  4. 25 mm, 15 mm

Show answer
Correct Option: C
Explanation:

The length of the vocal chords differs in men and women, which is why there is difference in the quality of their voice. The length of the vocal chord in men is approximately 20 mm and in women it is 15 mm.

How does sound is produced by humans?

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

  1. In humans sound is produced by the voice box.

  2. In humans sound is produced by the larynx.

  3. In humans sound is produced by the upper part of the wind pipe.

  4. All

Show answer
Correct Option: D
Explanation:

In humans sound is produced by the voice box or larynx. It is the upper part of the windpipe. Two vocal cords are stretched across the voice box leaving a narrow slit. When the lungs force air through the slit, it vibrates and produces sound.

Which body part is useful to make basic sound of the voice in humans?

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

  1. Vocal folds in larynx

  2. Lungs

  3. Wind pipe

  4. Throat

Show answer
Correct Option: A
Explanation:

Humans have larynx which consists of vocal folds which helps in producing sound which we call voice.

What is the process, of converting the air pressure from lungs into audible vibrations, called?

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

  1. Excitation

  2. Vibration

  3. Phonation

  4. None

Show answer
Correct Option: C
Explanation:

Phonation is known as process of converting air pressure from lungs into audible vibrations.