The nature of sound

What is the frequency of a sound wave measured in?

• Hertz (Hz)

• Decibels (dB)

• Watts (W)

• Meters (m)

What does a higher amplitude in a sound wave indicate?

• A louder sound

• A softer sound

• A higher pitch

• A lower pitch

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What device is used to measure sound levels?

• Sound level meter

• Thermometer

• Barometer

• Seismograph

What part of the ear converts vibrations into electrical signals?

• Cochlea

• Eardrum

• Auditory nerve

• Middle ear bones

What is the unit used to measure amplitude?

• Decibels (dB)

• Hertz (Hz)

• Lumens (lm)

• Joules (J)

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What does a low frequency sound like?

• High frequency sounds are sharp and piercing.
• Low frequency sounds are always silent.
• Low frequency sounds are quick and high-pitched.
• Low frequency sounds sound deep and rumbling.

What does a high amplitude sound like?

• A high amplitude sound is loud and powerful.
• A high amplitude sound is high-pitched and shrill.
• A high amplitude sound is barely audible.
• A high amplitude sound is soft and quiet.

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NGSS.MS-PS4-1

How would you describe this sound wave?

• Low Amplitude, High Frequency

• High Amplitude, High Frequency

• Low Amplitude, Low Frequency

• High Amplitude, Low Frequency

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NGSS.MS-PS4-1

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