Development of sound wave experimentation tools influenced by wind velocity

Author:

Maisyaroh S,Mariyo H,Supahar ,Kuswanto H

Abstract

Abstract Development of important experimental tools in learning creative and innovative physics. The study aims to develop a sound wave experiment tool influenced by wind velocity. This tool is validated by comparing with standard measurements. The experimental apparatus is made of PVC tubes both ends of the open tube with a length of 137 cm. For the wind velocity obtained from a mini fan that is placed at one end of the tube open and regulated using a dimmer. It that enters the PVC tube is measured using an anemometer. The experiment kit is equipped with a pinch microphone to capture sounds and audacity software to display sound waves that enter the PVC tube. The experimental results obtained a sound velocity of 345.7 m/s with a wind velocity of 3.2 m/s. Sound velocity 347.5 m/s with wind velocity 5.0 m/s and sound velocity 348.9 m/s with sound velocity 6.4 m/s. Thus, the higher wind velocity value, the higher sound velocity. The contribution of this research is the innovation of physics laboratory media in the field of education.

Publisher

IOP Publishing

Subject

General Physics and Astronomy

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