A student project on wind chimes. Tuning in to standing waves

Baxter, G. W.; Hagenbuch, Keith M.

doi:10.1119/1.880040

The Physics Teacher

1998

DOI: 10.1119/1.880040

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A student project on wind chimes. Tuning in to standing waves

G. W. Baxter

Keith M. Hagenbuch

Abstract: The Behrend College. His active research involves the stability and flow properties of granular materials (sand, seed, powders, etc.) In his free time, i.e., when he is not in the classroom or research lab, he can be found teaching Scottish Country Dance.

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Music in MATLAB: A series of programming challenges for an introductory course

Moor

2009

Comp Applic In Engineering

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Students often find introductory programming a difficult new world. To help motivate students there are many examples of courses using robotics or graphics to provide a more concrete result for programming exercises. MATLAB's ability to output a time series to the sound card of a PC provides an opportunity for problems that create sounds and music instead of numbers. This approach requires little or no equipment to implement. Project challenges involving the creation and analysis of sound were developed to illustrate engineering and programming concepts in an introductory Engineering Computer Tools Course. Easily implemented in MATLAB by first-year students, these challenges include structured programming, graphing, file manipulation, and simple analysis of sound waves. Problems where developed that illustrate almost all aspects of the course from a script that plays a very simple tune through a general song player that reads a data file containing the note names, durations, and amplitudes. This player requires the use of different data types, loops, conditionals, and sub-functions. In addition to developing students understanding of computer manipulations they are introduced to a range of important engineering topics including: waves, sampling, digital representation of analog phenomenon, sound, signal processing, analog/digital conversion, and bit resolution. These projects have added an interesting and memorable variation into the course. The students have found these projects challenging and it has been important to develop aids for them working with sound. Particularly important is providing materials to help students who have little or no musical training. ß

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Music in MATLAB: A series of programming challenges for an introductory course

Moor

2009

Comp Applic In Engineering

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Four Free Software Packages Related to the Physics of Sound

Oliver¹,

Underwood²,

Marotta³

et al. 2013

The Physics Teacher

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A simple graphical method for calculating the standing wave frequencies on a rectangular membrane

Romano

Price

2020

American Journal of Physics

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In introductory physics courses, simple arguments based on traveling waves on a string are used to relate the frequency of standing waves to boundary conditions, e.g., the fixed ends of the string. Here, we extend that approach to two-dimensional waves such as the oscillations of a rectangular membrane with edges fixed at the boundary. This results in a graphical method that uses only simple geometry and is suitable for explaining two-dimensional standing-wave oscillations to non-science majors, e.g., in a physics of sound and music class.

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A student project on wind chimes. Tuning in to standing waves

Abstract: The Behrend College. His active research involves the stability and flow properties of granular materials (sand, seed, powders, etc.) In his free time, i.e., when he is not in the classroom or research lab, he can be found teaching Scottish Country Dance.

Cited by 3 publications

References 1 publication

Music in MATLAB: A series of programming challenges for an introductory course

Music in MATLAB: A series of programming challenges for an introductory course

Four Free Software Packages Related to the Physics of Sound

A simple graphical method for calculating the standing wave frequencies on a rectangular membrane

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