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Abstract ▼ AI-Helper

We investigate 8th-grade science textbooks and their instructor’s manuals treating the ideal condition for isochronism of a simple pendulum. Isochronism, i.e., the period is independent of the amplitude, is satisfied only if the amplitude is very small. This is the so-called “ideal condition” for is...

We investigate 8th-grade science textbooks and their instructor’s manuals treating the ideal condition for isochronism of a simple pendulum. Isochronism, i.e., the period is independent of the amplitude, is satisfied only if the amplitude is very small. This is the so-called “ideal condition” for isochronism of a simple pendulum. Most textbooks and instructor’s manuals are found not to state this ideal condition properly, which often leads the deviations between experimental data and theoretical calculations. This difference between theoretical and experimental results cause students to create a sense of alienation from the real world and eventually keeps them away from physics. We, thus, study the cycloidal pendulum as an alternative method to test isochronism regardless of amplitude and discuss its practical utility of it in class.

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