This Exploratorium site presents the ray model of pinhole images. It develops the concepts necessary to understand these images and illustrates them with clear, easy-to-understand diagrams. It explains several examples...
Battery-powered toy trucks and a motion detector are used in this lesson plan to help students conceptually explore motion graphing and terminology of kinematics. The author explains how to do set-up using motion...
This AAPT/PTRA manual contains background references and activities to help teachers and students with the many concepts involved in understanding Energy. Sample student activities from the full print manual are...
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