**I was out the last two days but don't fret, I'll be back Monday to finish up courses and get going on examination preparation and review.** Physics 112Our study of refraction is nearly complete; just a few concepts to clear up for Monday before concluding the unit.physics112_refraction_dec20.pdfA multiple choice exam review is available now: physics112_final_exam_review_mc.pdf.  I will not have physical copies for you so download and print if necessary.  That review is meant to compliment your reviewing of tests and notes not replace it.Also, a few refraction examples will be uploaded to my Videos site and YouTube by Tuesday of this week.Physics 122We have completed the material for the course.  There will be no test on circular motion and universal gravitation, however, the exam will have a couple extra of those questions to compensate.Highly recommend you download and work through physics122_final_exam_review_mc.pdf.  It is 50 multiple choice questions that cover many concepts.  I will not have physical copies for you so please download and print if necessary.  That review is meant to compliment your reviewing of tests and notes not replace it.More example videos of cirular motion and universal gravitation should be uploaded to YouTube by the end of day Tuesday.physics_122_gravitation_notes_dec_20.pdf***Follow me on Twitter***Get instant (or at least relatively quick) notification of recently uploaded videos and image galleries. Twitter @mrpmacdonald; I'll tweet upcoming importants dates and notes as well.