Sound

How are ocean waves different from sound waves?

• Ocean waves are transverse waves, sound waves are longitudinal waves.

• Ocean waves are longitudinal waves, sound waves are transverse waves.

• Ocean waves are electromagnetic waves, sound waves are mechanical waves.

• Ocean waves are mechanical waves, sound waves are electromagnetic waves.

What are you doing when you're making sound?

• Causing photons to travel.

• Causing air molecules to vibrate.

• Causing electromagnetic waves to radiate.

• Causing air pressure to drop.

What is compression?

• When air molecules move apart from one another.

• When air molecules collide with one another.

• When air molecules become packed tightly together.

• When air molecules move around freely.

A sound wave of over 20,000 cycles per seconds is inaudible to humans. What does "inaudible" mean?

• Loud

• Shrill

• Deep

• Unable to be heard

What would a wave with a low amplitude sound like?

• It would sound quiet.

• It would sound loud.

• It would sound tinny.

• It would sound deep.

What is the relationship between frequency and sound?

• Frequency affects a sound's volume.

• Frequency affects a sound's amplitude.

• Frequency affects a sound's loudness.

• Frequency affects a sound's pitch.

Where would sound travel the slowest?

• In New York City

• In the pine forests of Georgia

• At the North Pole

• At the equator

Which of these does sound travel fastest through?

• Steel

• Water

• Air

• Rock

Which of these would absorb the most sound?

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Which of these increases the volume of sound?

• increasing the frequency

• increasing the intensity

• increasing the wavelength

• increasing the period