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Whitaker, Robert J. – Physics Teacher, 2009
One of Paul Hewitt's "Figuring Physics" that appeared in this journal dealt with the heating of a motor. This phenomenon can be demonstrated with a miniature motor and a bulb as part of a series of activities with "batteries and bulbs." Students examine the effect on the brightness of a single bulb when a second, identical bulb is placed in series…
Descriptors: Physics, Science Instruction, Light, Lighting
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Bloomer, Raymond H., Jr. – Physics Teacher, 1979
Describes a two-hour physics laboratory experiment modeling the phenomena of eclipsing binary stars developed by the Air Force Academy as part of a week-long laboratory-oriented experience for visiting high school students. (BT)
Descriptors: Astronomy, Laboratory Procedures, Learning Activities, Models
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Jewett, John W., Jr. – Physics Teacher, 1991
Describes science demonstrations with light-emitting diodes that include electrical concepts of resistance, direct and alternating current, sine wave versus square wave, series and parallel circuits, and Faraday's Law; optics concepts of real and virtual images, photoresistance, and optical communication; and modern physics concepts of spectral…
Descriptors: Electricity, High Schools, Learning Activities, Light
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Jones, Brian – Physics Teacher, 1993
Presents a laboratory exercise to reinforce the concepts of conductivity and resistance. Students measure resistance over rolled out Play-Doh of differing lengths and widths using the four-point resistance measurement method. (MDH)
Descriptors: Class Activities, Electricity, High Schools, Learning Activities
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Sadler, Philip – Physics Teacher, 1991
Describes an inexpensive spectrum projector that makes high-dispersion, high-efficiency diffraction gratings using a holographic process. Discusses classroom applications such as transmission spectra, absorption spectra, reflection characteristics of materials, color mixing, florescence and phosphorescence, and break up spectral colors. (MDH)
Descriptors: Color, Discovery Learning, High Schools, Investigations
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Halada, Richard S. – Physics Teacher, 1991
Demonstrates a laboratory to teach the concept of moment of inertia in which students are asked to identify four objects of equal mass sealed in unopenable containers by identifying the mass distribution of each object. Gives instructions to build an instrument to determine relative distribution of mass. (MDH)
Descriptors: Concept Formation, Cooperative Learning, High Schools, Instructional Materials
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Hunt, Robert G. – Physics Teacher, 1991
Presents a framework for teachers to use the thermodynamic system of popping corn to generate student interest. Examines the popping mechanism and the role of steam in, the heat required during, and the energy efficiency of the popping process. (MDH)
Descriptors: Classroom Techniques, Energy Conservation, Enrichment Activities, Heat