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Sound Propagation and Vocal Cords Length

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Sound Propagation and Vocal Cords Length

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Questions and Answers

What is the reason behind the difference in voices of men, women, and children?

Volume of air in the lungs

Varied length of vocal cords (correct)

Different pitch of vocal cords

Type of sound produced

Why does the sound become fainter when you suck air from the tumbler?

Increased air pressure inside the tumbler

Sound waves reflected back

Decreased air pressure inside the tumbler (correct)

Vibration of the tumbler

What happens to the sound when you remove the tumbler from your mouth?

Sound changes pitch

Sound disappears

Sound becomes softer

Sound becomes loud again (correct)

Why can't you hear any sound if all the air is sucked out of the tumbler?

Sound needs a medium to travel Signup and view all the answers

How does the length of vocal cords differ between men and women?

Men have longer vocal cords than women Signup and view all the answers

What is the significance of a medium for sound propagation?

Sound cannot travel without a medium Signup and view all the answers

What is the thin stretched membrane at the end of the canal called?

Eardrum Signup and view all the answers

Which of the following can sound travel through?

Any solid Signup and view all the answers

What does the eardrum do when sound vibrations reach it?

Vibrates Signup and view all the answers

In what medium can sound be transmitted?

Gas, liquid, solid Signup and view all the answers

How do vibrating objects produce sound?

By creating oscillations Signup and view all the answers

Where do the vibrations from the eardrum travel to before reaching the brain?

Inner ear Signup and view all the answers

What happens when air has been completely removed from a vessel?

A vacuum is created in the vessel Signup and view all the answers

Can sound travel through a vacuum?

No, sound cannot travel through a vacuum Signup and view all the answers

How do whales and dolphins communicate under water?

Using sound waves Signup and view all the answers

What medium can sound travel through based on the provided activities?

Solids, liquids, and gases Signup and view all the answers

What shape is the outer part of the ear compared to?

A funnel Signup and view all the answers

Why can't sound travel through a vacuum?

There are no particles in a vacuum to transmit sound waves Signup and view all the answers