Literaturnachweis - Detailanzeige
| Autor/inn/en | Ruiz, Michael J.; Berls, Rob |
|---|---|
| Titel | Vacuum Cleaner Isolates over 12 Harmonics in the Corrugated Whistling Tube |
| Quelle | In: Physics Education, 55 (2020) 3, Artikel 035012 (5 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0031-9120 |
| Schlagwörter | Physics; Science Instruction; Teaching Methods; Science Experiments; Acoustics; Audio Equipment; Measurement; Video Technology; Demonstrations (Educational); Electronic Equipment |
| Abstract | A vacuum cleaner is used to isolate over twelve harmonics in a corrugated toy whistling tube. The toy tube is first taped along a horizontal surface. Then a vacuum cleaner with a hose diameter approximately the same as that for the toy tube is turned on. As the vacuum cleaner hose approaches one end of the corrugated tube, individual higher harmonics are generated. From a sound recording, the frequencies of the harmonics can be measured with the free audio program "Audacity" and found to agree with theory to about 1%. An exciting class demonstration is included with a video accompanying this paper: Ruiz M. J. 2020 Video--Vacuum cleaner isolates over 12 harmonics in a corrugated whistling tube (http://mjtruiz.com/ped/hummer/). (As Provided). |
| Anmerkungen | IOP Publishing. 190 North Independence Mall West Suite 601, Philadelphia, PA 19106. Tel: 215-627-0880; Fax: 215-627-0879; e-mail: ped@ioppublishing.org; Web site: https://iopscience.iop.org/journal/0031-9120 |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2022/1/01 |
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