Quiz: Sound Waves

Sound waves travel as ________ waves.

• Transverse

• Longitudinal

• Surface

Sound waves CANNOT travel through which of these:

• Paper

• Milk

• Outer space

• Air

Loudness of waves is measured in

• Hertz

• Decibels

• Watts

• m/s

What does the pitch of a sound depend on?

• The amplitude of the sound wave

• The medium through which the sound travels

• The frequency of the sound wave

• The temperature of the medium

Bonus Question: Which of the following best describes the relationship between amplitude and loudness?

• Higher amplitude means lower loudness.

• Amplitude and loudness are unrelated.

• Higher amplitude means higher loudness.

• Loudness decreases as amplitude increases, up to a certain point.

What happens to the pitch of a sound as the frequency increases?

• The pitch decreases.

• The pitch remains the same.

• The pitch increases.

• The pitch first increases, then decreases.

What is the unit of frequency?

• Decibel (dB)

• Hertz (Hz)

• Meter (m)

• Second (s)

Which of the following would likely have the highest pitch?

• A truck horn

• A whistle

• A bass drum

• A human voice

If two sound waves have the same frequency but different amplitudes, how will they differ?

• They will have different speeds.

• They will have different pitches.

• They will have different loudness levels.

• They will travel through different mediums.

Bonus Question: What effect does the medium have on the speed of sound?

• Sound travels at the same speed in all mediums.

• Sound travels faster in denser mediums.

• Sound travels slower in denser mediums.

• The medium has no effect on the speed of sound.