Thursday, September 12, 2013

Lesson 2 Angle of Incidence and Straight Line

Using pool as an example of angle of incidence = angle of reflection.



An illustration of how a rough or matt surface effects the angle of reflection.



Examples of different surfaces reflecting a beam of light.







How a parabolic reflector works.



Light travels in a straight line we used a camera obscura to illustrate the law.




The larger the whole the less sharp the image is.



Our experiment with different size light sources and a 5" hole.





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