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)

4/19 Physics Recording - Refraction and Lenses

https://youtu.be/1m3G0NGBh4A

4/19 Physics update and homework due 4/26

Hi folks,

Today we got quite a bit deeper into light by beginning our unit on optics.  We had a chance to explore different lenses to see how they effected light and images.

Homework for next week:

Read the text pages 442-459

Do questions #'s 1 - 26 on page 460

Recording of 4/12 Physics Class - Electromagnetic Spectrum

https://youtu.be/5iWh375qxKg

4/12 Physics update and homework due 4/19

Hi folks,

Today we began a new unit on light.  We took the time today to familiarize ourselves with the electromagnetic spectrum and to cover some general definitions that we will be using over the next few weeks.

Homework due next week:

Read pgs. 404 - 418

Do Review Questions #'s 1- 17 on page 420

Recording of 4/5 Physics class - Speed of light and sound

https://youtu.be/_zH3U0a9MIU

4/5 Physics update and homework due 4/12

Hi folks,

Today we spent some time with the concepts of the speed of sound and the speed of light.  This gave us the opportunity to get into some of the mind blowing aspects of Einstein's relativity theories such as time dilation, length contraction and the twin paradox.

On today's quiz, I asked one of those annoying conservation of momentum questions and it appears that folks may need to review that one.

Here's the video of me solving these kinds of problems in class.  Take a look if you need a review.  Then find some of your old quizzes and homework assignments and test yourself on this.  It shall return on the final!  

For homework next week, I'd like you to take a look at this webpage.  Now, that you've taken a look, your quest is to find yourself a movie, a video game, a book or whatever character you wish and do the same kind of thing to that character as the webpage does with Yoda.  The grade for this homework will be different than usual.  You will get a normal 5 points if you just apply one formula to solve the scenario.  But, you can get as many as 10(!) extra credit points if you take as much time and thought as "What If" applies to Yoda.

I hope my explanation is clear.  If you're confused, please feel free to ask questions.

Have fun with this!  I'm really looking forward to seeing what you all come up with.