Friday, September 3, 2010

Light Intensity Lab (Orange: 9/3 Black: 9/7)

I gave the quiz on properties of light and shadows. I checked WS 2 and went over it. There will be a quiz on one problem from this worksheet the next time I see you. I also showed a video Mr. Hammack and I made that shows how pinhole viewers work. The one thing that was not discussed in the video is how the pinhole representation gets more intense (brighter) when the viewing screen is close to the pinhole. To explore this we did the Light Intensity Lab and discovered the Inverse Square law.

Homework:
Finish WS 3
1 Paragraph Summary of Reading
Study for Pinhole Quiz

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