Fwd: Please help me find a few good people!

Hi folks,

I hope you have all had a great summer.  This opportunity was sent to me recently and I thought some of you may be interested.  It looks like it might be quite interesting.

Enjoy the rest of your summer!

Never Stop Wondering

"Science Jim"  Mueller

(919) 338-6142

A Fun Approach to Serious Physics!

Sciencejim

Join my Facebook page!

Facebook | Science Jim

Begin forwarded message:

From: Maria Droujkova <droujkova@gmail.com>

Subject: Please help me find a few good people!

Date: August 16, 2014 at 10:38:06 AM EDT

To: Jim Mueller <jim@bitesizephysics.com>

Jim,

Can you please help me with this? I only need a few people. I think it's different enough from what you do, as well, that it is complementary.

~~~~~

Advanced high school math and science calculus club reading Newton's Principia

Take a look at this sample: http://www.moebiusnoodles.com/s/wp-content/uploads/2014/08/PrincipiaSample.pdf

DOES THIS APPEAL TO YOU? DO YOU NOW HAVE THE UNSHAKEABLE DESIRE TO SWING VESSELS OF WATER AROUND TO CREATE VORTICES?

Matt Droujkov (16) is a poet and polymath who is excited about space. Matt is seeking fellow young adults who are comfortable reading at the college level and do not falter in the face of differential equations. We will read passages from Principia and meet online to discuss them once a week on Wednesday afternoons. We will convene in North Cary on the first Wednesday of every month.

Dr. Maria Droujkova will mentor and guide club participants. Maria is a parent, curriculum developer, and mathematics education researcher. You can see some of her work at MoebiusNoodles.com.

THOSE WHO ARE NOT EXCITED ABOUT THE SUBJECT MATTER AND PARTICIPATE ONLY UNDER THE DURESS OF THEIR PARENTS OR THE SOCIETY NEED NOT APPLY.

WHAT: A math/science/book club with a focus on interpreting Newton's "Principia" through writing, modeling, and making modern connections.

WHO: Matt, Dr. Maria, and 3-4 teen colleagues

WHEN: Wednesdays late afternoons, September to December, online (weekly) and face-to-face (monthly); meetings with local engineers and scientists by arrangement

APPLY: Email mattdroujkov@gmail.com if you are interested

 

Cheers,
Dr. Maria Droujkova

moebiusnoodles.com
919-388-1721
-- .- - ....

 

Full Syllabus for Physics 2013 -2014

Hi folks,

Here is the complete syllabus for what we covered in physics.

Thank you for being a part of class this year.

I hope you all have a wonder-filled summer.

Sincerely,
Jim Mueller

Some help with Ray Diagrams for Physics

Hi folks,

These websites do a very nice job explaining ray diagrams and how to draw them. There are videos as well.

Convex Mirrors http://www.physicsclassroom.com/class/refln/Lesson-4/Ray-Diagrams-Convex-Mirrors

Concave Mirrors http://www.physicsclassroom.com/class/refln/Lesson-3/Ray-Diagrams-Concave-Mirrors

Convex Lenses http://www.physicsclassroom.com/class/refrn/Lesson-5/Converging-Lenses-Ray-Diagrams

Concave Lenses http://www.physicsclassroom.com/class/refrn/Lesson-5/Diverging-Lenses-Ray-Diagrams

Jim Mueller

Convex Lenses | MinuteLabs.io

Thought you guys might enjoy this great little app to play with convex lenses.

http://labs.minutelabs.io/Lenses/

5/4 Physics update and homework due 5/11

Hi folks,

Today we spent a bit more time working with ray diagrams for lenses and mirrors since the last quiz seemed to indicate that a bit more work with with that concept would be a very good idea. We also introduced static electricity and did a short lab with that. Next week we'll spend more time with that concept.

Next week is our last week to meet other than the final and I'd like to allow time for questions and review. For homework this week, please spend time looking over your old quizzes. Bring any questions you may have to class next week for us all to take a look at. Remember, there are no dumb questions. If you feel uncertain about something, it's almost guaranteed someone else in class has the same issue…and they may not even know it.

Feel free to email me if you need some help as well.

See you all next week.

Science Jim

Physics Final Exam on May 19

Hi folks,

Just a reminder that we have two more classes and then the final exam.

To prepare for the final, I would highly recommend taking a look at all your old quizzes. The final exam will be based on the same material those quizzes were based on. Be sure to go over all questions that you may have missed and be sure to understand them so that you'll be ready for the exam. If you have trouble understanding where you went wrong, there's a good chance the material was covered in a recording and you can also email me if you need help. Feel free to ask questions at the beginning or end of class as well.

I'll provide all formulas and constants so you will not need to worry about memorizing anything.

Good luck everyone!


Never Stop Wondering,

Science Jim

4/26 Physics Video: Color

Way to go, Jim Mueller! Your video is now on YouTube.  Physics week 29 Color Want to spread the word about your newest video? Share your video We've sent this email to Sciencejim@gmail.com. If you don't want these notifications for finished uploads anymore, you can unsubscribe here. ©2014 YouTube, LLC 901 Cherry Ave, San Bruno, CA 94066

Physics Recording: Week 29 Mirrors and Color

http://youtu.be/IQ5pNqSuALI

4/28 Physics update and homework due 5/5

Hi folks,

Today we spent some time looking at the ray diagrams associated with convex and concave mirrors. After that we spent the rest of the class taking a look at how color works. We took a look at additive and subtractive colors and how three colors make up all the colors that we can see.

Homework for this week is to:
Read pg. 421 - 438 in the Conceptual Physics book
Do Review Questions #'s 2 - 25

Physics Recording Ray Diagrams

http://youtu.be/IQ5pNqSuALI

4/21 Physics class and homework due 4/28

Hi folks,


In today's class, we got into ray diagrams and spent a good amount of time drawing them for convex and concave lenses. We spent some time on mirrors as well.

Homework due 4/28

Read Conceptual Physics pgs 463-476

Do Review Questions #'s 1 - 3
Do Think and Explain #'s 1 - 12

4/8 Physics Video, Light

Begin forwarded message:

From: YouTube <noreply@youtube.com>

Subject: Congrats, your video is now on YouTube!

Date: April 10, 2014 at 1:12:55 PM EDT

To: ScienceJim <sciencejim-6785@pages.plusgoogle.com>

Way to go, ScienceJim! Your video is now on YouTube.  Physics 4:8 Light Want to spread the word about your newest video? Share your video We've sent this email to sciencejim-6785@pages.plusgoogle.com. You can unsubscribe from notifications for finished uploads by visiting Email Preferences. ©2014 YouTube, LLC 901 Cherry Ave, San Bruno, CA 94066

Physics update 4/8 and homework due 4/22

Hi folks,

Today we began our discussion on light by taking a look at the electromagnetic spectrum, and exploring how light refracts as it goes through lenses and liquids. We will do more with light during our next class session.

Remember, no class next week due to Spring Break.

Homework due 4/22 is to:

Read pgs. 442 - 459

Do review questions on pg. 460 #'s 13 - 23
Do Think and Explain questions on pg. 462 #'s 8 - 10

Recording of Physics Class week 27: Sound

Begin forwarded message:

From: YouTube <noreply@youtube.com>

Subject: Congrats, your video is now on YouTube!

Date: April 6, 2014 at 5:28:18 AM EDT

To: ScienceJim <sciencejim-6785@pages.plusgoogle.com>

Way to go, ScienceJim! Your video is now on YouTube.  physics 3:31 Want to spread the word about your newest video? Share your video We've sent this email to sciencejim-6785@pages.plusgoogle.com. You can unsubscribe from notifications for finished uploads by visiting Email Preferences. ©2014 YouTube, LLC 901 Cherry Ave, San Bruno, CA 94066

Homework for this week of physics

Hi folks,

My address list for the class is on the computer that had the hard drive crash. I just got it back up and running yesterday. Since this is so late in the week, let's say that there is no homework due this week.

Jim Mueller

Recording for Physics week 25: Resonance

http://youtu.be/3xM-lBbs5gw

Chapter for homework

Hi folks,

The chapter I assigned for homework is not in the original .pdf I gave you. I thought I had given you the full book. Here's the chapter.


.

3/24 Physics update and homework due 3/31

Hi folks,

This week we worked on the concept of resonance. Resonance is when energy is transferred by a wave of a certain frequency causing something with a similar frequency to vibrate. It is the way energy can be transferred by waves. We did a variety of demonstrations to explore this concept.

Homework for this week is to read the Resonance chapter in the Bite-Size Physics eBook and do the questions at the end of the chapter.

3/17 Physics class and homework due 3/24

Hi folks,

Today we spent a bit more time mastering some of the math from the past weeks. The quizzes pointed to some issues in solving the energy problems and conservation of momentum problems so we spent more time explaining them and doing some examples in class.

We also spent a bit of time finding the relationship between the tension of a slinky and the velocity of a wave.

For homework due next week do the enclosed .pdf.

Recording of Physics Class week 24

Way to go, ScienceJim! Your video is now on YouTube.  Physics week 24 We've sent this email to sciencejim-6785@pages.plusgoogle.com. You can unsubscribe from notifications for finished uploads by visiting Email Preferences. ©2014 YouTube, LLC 901 Cherry Ave, San Bruno, CA 94066

Physics recording week 22 Waves

Way to go, ScienceJim! Your video is now on YouTube.  Physics 2013 week 22: Waves Want to spread the word about your newest video? Share your video We've sent this email to sciencejim-6785@pages.plusgoogle.com. You can unsubscribe from notifications for finished uploads by visiting Email Preferences. ©2014 YouTube, LLC 901 Cherry Ave, San Bruno, CA 94066

3/10 Physics update and homework due 3/17

Hi folks,

Today we spent time studying waves and the definitions of the properties of waves. We went outside and, with a rope, did a bit of a hands-on experience getting to understand frequency, amplitude and wavelength.

Homework for this week is to:

Read pp. 372 - 379 in the Conceptual Physics book
Do Review Questions pg. 387 #'s 1 - 11
Do Plug and Chug 1-5

Physics Class is ON today

Hi folks,

I've got power here so I'm planning on holding class unless I hear that to many folks out there can't make it.

Hope to see you all soon!

Jim

2/24 Physics update and homework due 3/3

Hi folks,

Today our future physicists under took a little mechanical engineering task. I gave them the task to create the most energy efficient vehicle that they could. Using a variety of materials, they were to create a vehicle that uses as much of the energy they gave it as efficiently as possible. They had to measure the energy they put into the vehicle (primarily gravitational potential energy) and the energy out and figure out how energy efficient their vehicle was.

Homework for 3/3 is to do the enclosed questions. I've included the answers to the Olympic energy questions to help you study.

1. Thinking about the energy formulas, tell me if it make sense to have a heavy vehicle or a light vehicle as far as gPE goes.

2. If you created a balloon car, would you want it to be heavy? Why or why not?

3. If you and a friend were on identical sleds and your friend weighs twice as much as you do, which of you would go farther? Which of you would have more velocity? Describe this in relation to momentum and describe this in relation to energy.


Use these formulas to solve the following Olympic energy problems. Answers below.
gPE = MgH
KE = ½ MV^2 (^2 means squared)
W = FD

1. A ski jumper who has a mass of 70 kg stands at the top of a ski jump that is 20m tall.

a. What is his potential energy?


b. If there's no friction, what would his speed be as he launches from the jump?



c. If his speed is 14 m/s, what is the energy efficiency of the ramp?


d. What work did friction do on our ski hero?


e. What was the average force of friction between the ramp and his skis if he travels
75 m down the ramp


2. a. If the Jamaican bob sled with a mass of 300 kg reaches a top speed of 150 km/h (42 m/s), what was the least amount of energy the bob sled started with?

b. What was the lowest height the bob sled started at?

c. If the track is 2200m long, what work did friction do on our Jamaican bob sledders by the time the team comes to a complete rest at the bottom?

d. If the height of the track was really 200 m, what was the energy efficiency of the bob sled?




1. a. gPE = Mgh
70kg x 20 m x 10 m/s^2 = 14,000J

b. KE = ½ MV^2
14,000 J = ½ 70 kg x v^2
v = 20 m/s

c. KE = ½ 70kg x (14)^2
KE = 6860 J
Work out/ Work in x 100
6860/14000 x 100 = 49% Efficient

d. 14,000J - 6860J = 7140 J

e. W = FD
7140J = F x 75m
F = 95.2 N



2. a. KE = ½ MV^2
KE = ½ 300kg (42 m/s)^2
KE = 264,600 J

b. gPE = MgH
264,600 = 300kg x 10m/s^2 x H
H = 88.2 m

c. W = FD
264,600 J = F x 2200 m
F = 120.27 N

d. gPE = MgH
gPE = 300 kg x 10 m/s^2 x 200 m
gPE = 600,000 J That's the maximum amount of energy. Since their energy was 264,600 J their energy efficiency was…
Work out / Work in x 100
264,600/ 600,000 x 100 = 44%

Payment for Science Classes

Hi folks,

Just a reminder, that payment is due for the final session of classes. The cost is $250 for the full 2 hour class and $180 for the 1.5 hour class.

If you wish to mail your payments, my address is 3105 Whitfield Rd. Chapel Hill, NC 27514.

I hope everyone is enjoying this wonderful spring-like weather.

Jim Mueller

Recording of Physics week 21: Working with Energy Formulas

This is short since most of the class was lab work.

Way to go, ScienceJim! Your video is now on YouTube.  Physics week 21 Want to spread the word about your newest video? Share your video We've sent this email to sciencejim-6785@pages.plusgoogle.com. You can unsubscribe from notifications for finished uploads by visiting Email Preferences. ©2014 YouTube, LLC 901 Cherry Ave, San Bruno, CA 94066