Properties of Sound

________ describes your perception of energy of a sound.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What two factors does the loudness of a sound depend on?

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Tags

NGSS.MS-PS4-1

The ________ the amplitude of a wave, the more energy it has.

• larger

• smaller

• same

• different

Tags

NGSS.MS-PS4-1

Close to the sound source, the sound waves cover a ____ area.

The total energy of a wave stays the same no matter the distance.

• True

• False

Tags

NGSS.MS-PS4-1

The amount of energy a sound wave carries per second through a unit area its __________.

Tags

NGSS.MS-PS4-1

The loudness of different sounds is compared using a unit called the

• meter (m)

• decimal (dec)

• decibel (dB)

• hertz (Hz)

Explain how decibels increase with sound intensity.

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Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Normal conversation decibel range

• 40-50

• 70-80

• 20-30

• 30-40

The _____ of a sound is a description of how high or low the sound seems to a person.