Physical Science 20 - Dec 14

Welcome to the final week before the Christmas break everyone.  We have a full week ahead of us that will culminate with our unit exam on Thursday.  We are almost finished with refraction and today we looked at the optical systems of the eye, particularly the ability that our eye has to accomodate the fact that we are looking at objects at different distances and need to focus them on the retina of our eye.  We took a couple of slides of notes (slides 83-86) and then students got to sepnd the rest of the class working on their lab reports for Lab 3.2, which we did in class on Friday.  If students were absent Friday, there is a set of sample data in the physics folder of the course notes.  Use that sample data to complete the lab.  The report is due tomorrow. Tomorrow we will look at how we fix some common problems that happen with the optical system of the eye.