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Direct linkLoPresto, Michael C. – Physics Education, 2014
What follows is a description of a theoretical model designed to calculate the playing frequencies of the musical pitches produced by a trombone. The model is based on quantitative treatments that demonstrate the effects of the flaring bell and cup-shaped mouthpiece sections on these frequencies and can be used to calculate frequencies that…
Descriptors: Musical Instruments, Musical Composition, Program Descriptions, Models
Gallitto, Aurelio Agliolo; Fiordilino, Emilio – Physics Education, 2011
In the framework of the Italian National Plan "Lauree Scientifiche" (PLS) in collaboration with secondary schools, we have investigated the mechanical paradox of the double cone. We have calculated the geometric condition for obtaining an upward movement. Based on this result, we have built a mechanical model with a double cone made of aluminum…
Descriptors: Geometric Concepts, Models, Secondary Schools, Investigations
Kires, Marian – Physics Education, 2009
Multi-ball collisions inside the Astroblaster toy are explained from the conservation of momentum point of view. The important role of the coefficient of restitution is demonstrated in ideal and real cases. Real experimental results with the simple toy can be compared with a computer model represented by an interactive Java applet. (Contains 1…
Descriptors: Toys, Computer Software, Games, Comparative Analysis
Dunning, R. B. – Physics Education, 2009
The bicycle provides a context-rich problem accessible to students in a first-year physics course, encircling several core physics principles such as conservation of total energy and angular momentum, dissipative forces, and vectors. In this article, I develop a simple numerical model that can be used by any first-year physics student to…
Descriptors: Physics, Scientific Concepts, Science Instruction, Problem Solving
Lawrence, Ian – Physics Education, 2007
Describing the world in terms of energy is necessarily quantitative: one must be able to do the sums for the description to gain a purchase. Whilst teaching younger children (say 11-14 years old) the full quantitative description is not available and this has made the introductory teaching of energy a contentious area. By focusing on…
Descriptors: Energy, Science Instruction, Models, Computation
Robinson, A. W.; Patrick, C. G. – Physics Education, 2008
We present a case study of the physical principles necessary to model the high altitude parachute jump made by Colonel Joseph Kittinger, USAF, in 1960, in order to determine the maximum speed attained and to calculate whether this speed was sufficient to exceed the speed of sound at that altitude. There is considerable discrepancy in the value of…
Descriptors: Mathematical Models, Visual Aids, Physics, Case Studies
