What Are Sound Waves? by Nicola Corsaro

What Are Sound Waves? by Nicola Corsaro

Author:Nicola Corsaro
Language: eng
Format: epub
Publisher: The Rosen Publishing Group, Inc
Published: 2019-01-02T00:00:00+00:00


Children, men, and women use their ears to help them hear sound waves.

Loud or Soft?

One way we measure sound is with volume. Volume tells us how loud or soft a sound is. The amount of energy in a sound wave gives the sound its volume.

Loud sounds have a lot of energy. You can hear loud sounds without being near the source of the sound. The energy helps the sound reach our ears from far away. Soft sounds only have a little energy. You have to be close to the source in order to hear them.

A fire truck’s siren is very loud. Can you imagine how loud it must sound to men and women in the truck?



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