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McCall, Martin; Kinsler, Paul; Tymms, Vijay – Physics Teacher, 2020
In many high school teaching materials the force on a current-carrying wire in a magnetic field is discussed using an idea based on a so-called "catapult field" (cf. Fig. 1), an engaging depiction of magnetic forces, albeit one which, to the best of our knowledge, has neither been used in college-level educational material or scrutinized…
Descriptors: High School Students, Instructional Materials, Magnets, Physics
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Daw, Harold A. – Physics Teacher, 1991
Evaluates the technical efficacy of the V-Scope in measuring motion produced by a phonograph turntable, a template furnished by the manufacturer, a free-fall apparatus, some pendula, a gyroscope, and three air tables. Concludes that the V-Scope gives excellent results and is easy to use. (MDH)
Descriptors: Courseware, High Schools, Instructional Material Evaluation, Measurement Equipment