Exam (elaborations)
Gizmo: Penumbra Effect (Question and Answers) 2021
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Vocabulary: eclipse, penumbra, point source, umbra 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....
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