130233 20240731103418.0 doi 10.1088/1361-6552/ace581 sideral 135257 ART-2023-135257 eng Torcal-Milla, Francisco José Universidad de Zaragoza (orcid)0000-0003-3178-5253 Measuring the speed of sound with a pan flute and a smartphone: a half-melodic and totally-didactic experiment 2023 Access copy available to the general public Unrestricted Teaching wave-physics and related phenomena with musical instruments results in a very pleasant and didactic approach for undergraduate students. Music allows teaching concepts such as frequency, amplitude, harmonics, resonance, and so on. In addition, one may use some instruments to calculate other quantities such as the air density or the speed of sound in the air. In this work, we use a conventional bamboo-made panflute and a smartphone to obtain the speed of sound in the air. The method is simple. It consists of making the pipes sound and measuring the frequency of the fundamental harmonic. The frequency is approximately proportional to the inverse of the pipe length and this dependence allows us to obtain the speed of sound quite accurately from the slope of the curve. We compare it with the theoretical value and analyse three possible causes of discrepancy such as the end correction, the air composition, or the straightness of the tubes. The proposed experiment can be carried out completely by the students since it does not involve any danger. In addition, it could be appropriate for undergraduate students or even school students. info:eu-repo/grantAgreement/ES/DGA-FEDER/E44-23R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 0.389 2023 Physics and Astronomy (miscellaneous) 2023 Q2 Education 2023 Q2 1.5 2023 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 58, 5 (2023), 055010 [7 pp.] Physics Education 0031-9120 702529 http://zaguan.unizar.es/record/130233/files/texto_completo.pdf Postprint info:eu-repo/date/embargoEnd/2024-07-31 1948209 http://zaguan.unizar.es/record/130233/files/texto_completo.jpg?subformat=icon icon Postprint info:eu-repo/date/embargoEnd/2024-07-31 oai:zaguan.unizar.es:130233 articulos driver 2024-07-31-10:07:35 ARTICLE