Experimental Setup for Measuring the Speed of Sound in Air

Stanislav Slanev, student; Hafize Shaban, student;
Shebnem Shaban, student; Aneta Marinova, teacher
Professional School of Economics - Shumen

https://doi.org/10.53656/nat2022-5.05

Absract. An experimental setup for measuring the speed of sound in air is described. The experiment can be reproduced with readily available tools, in any school. A smartphone was used, running tone generating apps available for free along with a digital oscilloscope. A sound frequency is assigned using the tone generator and is reproduced by the smartphone’s loudspeaker and is further observedusing the digital oscilloscope. A pipe is used as a resonator, and by dipping one end in water the air column length is adjusted. Some of the systematic effects leading to error in results are researched and evaluated.

Keywords: sound; speed; air; smartphone; tone generator; oscilloscope

Свързани статии:

Дистанционното обучение в СУ „Иван Вазов“ в Стара Загора през учебната 2019/2020 г. Bulgarian Blagoev Commune in the Context of the Formation of the Soviet Totalitarian System (1920S – 1930S) Educational Potential of Influencer Publications in the Aspect of Social and Intercultural Competence Formation Ролята на баснята за възпитаване на емоционални социални компетенции