Question

3. How do human beings produce sound? Draw a well labeled diagram showing
position of the larynx.
4.Explain why sound can travel through solid, liquid and gas, but not
, liquid and gas, but not through a vacuum.​

Answer 1

Explanation:

In humans, the sound is produced by the voice box or the larynx. ... Two vocal cords are stretched across the voice box (or larynx) in such a way that it leaves a narrow slit between them. Air passes through this slit. When air from the lungs is forced out through the slit, the vocal cords vibrate to produce sound

Answer 2

1. In humans, the sound is produced by the voice box or the larynx. The voice box is at the upper end of the wind pipe. Two vocal cords are stretched across the voice box (or larynx) in such a way that it leaves a narrow slit between them. Air passes through this slit. When air from the lungs is forced out through the slit, the vocal cords vibrate to produce sound.

2. In the pictures.

3.Sound needs a material medium like solid ,liquid or gas to travel and be heard because the molecules of solid, liquid and gases carry sound waves from one place to another. Sound cannot travel through vacuum or empty space because vacuum has no molecules which can vibrate and carry sound waves.

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