Sound Waves Review

Which of the following best describes pitch?

• How high or low a sound is

• How loud a sound is

• The speed of sound

• The softness of a sound

If you increase the frequency of a sound wave, what happens to the pitch?

• It gets lower

• It gets higher

• It stays the same

• It becomes quieter

What factor determines the loudness of a sound?

• The wavelength of the wave

• The frequency of the wave

• The amplitude of the wave

• The speed of the wave

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How does a high-amplitude sound wave compare to a low-amplitude sound wave?

• It has a lower pitch

• It has a higher pitch

• It is louder

• It is softer

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Which of the following would produce a lower pitch?

• A sound wave with a high frequency

• A sound wave with a low frequency

• A sound wave with a high amplitude

• A sound wave with a low amplitude

When a sound wave bounces off a hard surface and returns to the source, what is this an example of?

• Absorption

• Transmission

• Reflection

• Diffusion

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Which material is most likely to absorb sound waves?

• Metal wall

• Wooden floor

• Carpeted floor

• Concrete

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When sound waves pass through a door to reach another room, this is an example of:

• Reflection

• Transmission

• Refraction

• Absorption

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Which of these scenarios demonstrates sound absorption?

• Echoes in an empty hallway

• Sound muffled by thick curtains

• Voices traveling through a thin wall

• Hearing an echo in a large cave

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Why are some rooms designed with soft materials on the walls?

• To increase sound transmission

• To increase sound reflection

• To reduce sound reflection and absorb sound

• To allow sound to travel faster

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