Throughout this Virtual Workshop, whenever you are instructed to "do an activity",
please write up the activity in your notebooks.
We will ask to see your notebooks at the end of the workshop.
This one is already formatted as a worksheet --
you could start by printing it out.
Some shadows are sharp while some are fuzzy
Sometimes our shadow is so fuzzy we can hardly see it at all; other times it is very distinct. What decides this?
1. You can have two shadows at once from the same object. Try to find an example, and then construct some more. How does it happen?
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2. Compare the shadow made by a clear light bulb to the shadow made by a frosted light bulb. How are they alike, and how are they different?
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3. Suppose you were at a fireworks display, and a rocket has just produced
100 brilliant lights in the sky. What would your shadow look like?
5. Make drawing showing a light bulb, an object, and the region that is in shadow, for the case that there is a fuzzy shadow. Indicate where the fuzzy region is. Does your picture explain how the fuzziness comes about?
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