Waves, Oscillations, & Acoustics: Decibel of Sound

PIRA Class: 3C30.10

Purpose

To observe the change in the reading of a (digital) decibel meter as sound loudness increases.

Description

Use the digital sound meter to measure sound intensity

- Have students clap, first softly then gradually louder and louder

- Have one student clap loudly, starting right beside meter and gradually increase the distance between his/ her hands and the meter.

(Use the overhead camera in the large classrooms to show the meter display)

Equipment

dB Meter

Location:

Shelf 223

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