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Oliveira, Vitor – Physics Education, 2022
We discuss the limits of the equation of the period of a simple pendulum, T[subscript s] = 2[pi][square root]l/g, frequently used in high-school and university classrooms to measure the acceleration of gravity. We evaluate the relative error in determining the acceleration of gravity with this simple equation instead of a more realistic one,…
Descriptors: Physics, Teaching Methods, Science Instruction, Accuracy
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Malgieri, Massimiliano; Calcagnile, Samantha; Zuccarini, Giacomo; Onorato, Pasquale – Physics Education, 2021
We report the results of a study on high school student difficulties in drawing the magnetic field lines for two magnets facing each other. Student difficulties were investigated by means of a predict-observe-explain activity. Our data confirm some of the previous results from the educational research literature on student difficulties in drawing…
Descriptors: High School Students, Science Instruction, Magnets, Freehand Drawing
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Marcom, Guilherme Stecca; Villar, Renato Pacheco; Kleinke, Maurício Urban – Physics Education, 2022
Research on problem-solving strategies has been conducted since the 1940s. Experts and novices use different strategies in problem solving; the main difference is in the familiarity with which they face new problems. For multiple-choice problems, an analysis of distractors can provide possible clues about the resolution processes developed by…
Descriptors: Problem Solving, High Stakes Tests, Mechanics (Physics), Physics