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LoPresto, Michael C. – Physics Education, 2011
What follows is an alternative to the standard tuning fork and quarter-wave tube speed of sound experiment. Rather than adjusting the water level in a glass or plastic tube to vary the length of an air column, a set of resonance tubes of different lengths is used. The experiment still demonstrates the principles of standing waves in air columns…
Descriptors: Science Instruction, Acoustics, Physics, Science Experiments
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LoPresto, Michael C. – Physics Teacher, 2010
Comparing the predicted and actual rolls of combinations of both two and three dice can help to introduce many of the basic concepts of statistical thermodynamics, including multiplicity, probability, microstates, and macrostates, and demonstrate that entropy is indeed a measure of randomness, that disordered states (those of higher entropy) are…
Descriptors: Thermodynamics, Scientific Concepts, Probability, Science Experiments
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LoPresto, Michael C. – Physics Teacher, 2006
What follows is a description of a simple experiment developed in a non-mathematical general education science course on sound and light for fine arts students in which a guitar is used with data collection hardware and software to verify the properties of standing waves on a string.
Descriptors: Science Instruction, Science Experiments, Musical Instruments, Physics