Sound beating (xylophone)

Back to 3B - Wave motion
PIRA index: 3B60.10

Description

Two xylophone keys with slightly different frequencies (difference of 1 Hz) are struck and the beating between the two sounds is clearly heard.

Equipment

• two xylophone keys
• mallet

Instructions

Strike the first key and then the second shortly after. The difference in frequency of the two keys leads to a beating pattern you can hear.

Keywords

beat, beating, frequency, hertz, xylophone

Images & Movies

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  Figure1

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  Figure2