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Active Physics
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Active Physics, 2nd Edition
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Chapter 5 - Let Us Entertain You
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Activity 5: Shadows
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shadow diagram
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Topic: shadow diagram (Read 291 times)
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Amy Stewart
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Amy Stewart
shadow diagram
«
on:
September 29, 2005, 12:14:20 PM »
attached is a diagram that Becky & I used to show umbra & penumbra - hope it helps!
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Tracy Greeley-Adams
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Re: shadow diagram
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Reply #1 on:
October 08, 2005, 11:24:36 PM »
very nicely done.. I felt having the student use colored pencils really helpes with seeing where the shadows would fall with more then one light source..
thank you for all your hard work guys
Tracy
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Eisenkraft
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Re: shadow diagram
«
Reply #2 on:
October 10, 2005, 05:56:15 PM »
Quote from: Amy Stewart on September 29, 2005, 12:14:20 PM
attached is a diagram that Becky & I used to show umbra & penumbra - hope it helps!
Thanks for sharing. I was about to suggest that it would make good sense to make sure that they understand the diagram with a point source. This can be done by eliminating all the blue lines. I then realized I could eliminate the blue lines so that eveybody would not have to do it themselves. It's why we have the activephysicstc. So here it is. Becky's diagram with a point source only.
Arthur
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Tracy Greeley-Adams
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Tracy Greeley-Adams
Re: shadow diagram
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Reply #3 on:
October 12, 2005, 12:46:47 PM »
this really helped my class in learning about the umbra etc. The book asks about the umbra and penumbra in the last question but does not discuss at all what this is. Just a fyi.
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Active Chemistry
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=> Active Chemistry
===> Chapter 1: Fun with the Periodic Table
=====> General suggestions/questions/comments
=====> Activity 1: Organizing a Store
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