Properties of Sound

________ describes your perception of energy of a sound.

Tags

NGSS.MS-PS4-1

The loudness of a sound depends on two factors

• the amount of energy it takes to make

• the type of sound

• the length of time of the sound

• the distance from the source

Tags

NGSS.MS-PS4-1

The larger the amplitude of the sound wave, the more energy it has and the louder it sounds.

• True

• False

Tags

NGSS.MS-PS4-1

Close to the sound source, the sound waves covers a area.

• large

• small

Tags

NGSS.MS-PS4-2

The total energy of the 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 is its _________.

The closer the sound wave is to its source, the more energy it has in a given area.

• False

• True

Tags

NGSS.MS-PS4-1

The loudness of different sounds is compared using a unit called the _______ (dB).

Tags

NGSS.MS-PS4-2

Each (dB) increase in loudness represents an increase in the intensity of the sound.

• 40 dB

• 30 dB

• 20 dB

• 10 dB

Tags

NGSS.MS-PS4-1

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