18 Questions
What is the reason behind the difference in voices of men, women, and children?
Varied length of vocal cords
Why does the sound become fainter when you suck air from the tumbler?
Decreased air pressure inside the tumbler
What happens to the sound when you remove the tumbler from your mouth?
Sound becomes loud again
Why can't you hear any sound if all the air is sucked out of the tumbler?
Sound needs a medium to travel
How does the length of vocal cords differ between men and women?
Men have longer vocal cords than women
What is the significance of a medium for sound propagation?
Sound cannot travel without a medium
What is the thin stretched membrane at the end of the canal called?
Eardrum
Which of the following can sound travel through?
Any solid
What does the eardrum do when sound vibrations reach it?
Vibrates
In what medium can sound be transmitted?
Gas, liquid, solid
How do vibrating objects produce sound?
By creating oscillations
Where do the vibrations from the eardrum travel to before reaching the brain?
Inner ear
What happens when air has been completely removed from a vessel?
A vacuum is created in the vessel
Can sound travel through a vacuum?
No, sound cannot travel through a vacuum
How do whales and dolphins communicate under water?
Using sound waves
What medium can sound travel through based on the provided activities?
Solids, liquids, and gases
What shape is the outer part of the ear compared to?
A funnel
Why can't sound travel through a vacuum?
There are no particles in a vacuum to transmit sound waves
Learn about how sound propagates through a medium and understand the differences in vocal cord lengths among men, women, and children. Explore the connection between vocal cords and voice variations.
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