Exam (elaborations)
Physics Gizmo - Penumbra Effect
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Prior Knowledge Questions (Do these BEFORE using the Gizmo.)Try this experiment: Shine a flashlight (or a desk lamp) on your hand so that it casts a shadow on a sheet of white paper. Hold your hand about 15–30 cm (6–12 inches) above the paper. 1. Look at the edges of the shadow. Are they sharp ...
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