4/26 Physics update and homework due 5/3

Hi folks,

Today we took a much deeper look at refraction and learned how to predict the behavior of a lens using the 3 laws of refraction.

We then spent a good amount of time learning how to approach ray diagrams.

This is a decent simulation to give you an opportunity to "play" with ray diagrams. Spend some time with this.

http://www.physicsclassroom.com/Physics-Interactives/Refraction-and-Lenses/Optics-Bench/Optics-Bench-Refraction-Interactive

Homework for next week is to create five different ray diagrams for a converging (convex) lens.  For each diagram, move the location of the object.  Do at least two diagrams with the object between the focal point and the lens and at least 2 with the object beyond the focal point.  Please use a ruler to create your rays.

If you need, this website  does a very nice job explaining how to do ray diagrams.  They go about it a little differently than I did in class but the results are identical.  

Please read 463-476


Do questions #'s 1- 12 on page 477


Do questions 1 - 12 on page 479 (Skip #7)