Thursday, July 18, 2019

Science Jim Summer Classes

Hi everyone!

I certainly hope everyone is having a very fun and refreshing summer.  

Turns out, I just can't wait until September to do more classes, so I'm holding five days of science fun in early August.

I've listed the classes below and, of course, they are up at Sciencejim.com.  

Please share with any mailing lists or facebook groups you may be on.  Tell your friends, tell your neighbors, tell your neighbors friends!  :)  

Last but not least, I still have some slots open if you or anyone you know is interested in some middle school or high school level classes.  I have classes running in Chapel Hill, Cary and Apex.  Check out Sciencejim.com for more information on those.

Would love to see everyone there!  


Science Jim's Fantastically Fun Flyers Series

Come join Science Jim for some Summer fun science in the sun!  (And in the air conditioning.)  Science Jim is offering up five days of some of his favorite science stuff!  Come join us for a day or two, or for all five.  Each day is $15 but if you sign up for all 5 the cost is only $65!
All classes will be held at the Caerus Academy location, 6901 Turkey Farm Rd. Chapel Hill.  (By the way, check out Caerusacademy.com for excellent English, Math and Science classes for your favorite middle or high school student.)

Fantastically Fun Flight Classes

The Ocean of Air.
Monday August 5
10 - 11:30
$15.00

You can't understand flight without understanding a little bit about air and our atmosphere.  We live under an ocean of air and because of this things fly and float.  Without the ocean of air everything would literally fall like a rock!  This class will be filled with some of Science Jim's favorite demonstrations as well as a Glorious Gliding Garbage challenge at the end.

Paper Airplanes: Basic Design
Tuesday August 6
10 - 11:30 
$15.00

There is little that Science Jim enjoys more than paper airplanes.  When he was in school and had to bring home handouts for his parents, very few ever made it home without becoming gliding projectiles (and even fewer made it home at all thanks to getting stuck in trees and landing on roofs).   In this class, Science Jim will show you how to make some of the more basic forms of paper airplanes.  We will also have a competition at the end of class for the farthest traveling paper airplane and the plane that stays aloft the longest.






Paper Airplanes: Advanced Design
Wednesday August 7
10 - 11:30
$15.00

This class is a follow up of the Tuesday class where we will be making far more complicated planes and learning a variety of different types of folds so that class participants can go farther on their own with websites and books.  We will be making some amazing planes here, as well as the present day world record holder.  We will have competitions at the end of this day as well.

2-Liter Bottle Rockets
Thursday August 8
10 - 11: 30
$15.00

Did you know you can rockets out of pop bottles and with a little water and air launch them 100 or more feet into the air?!  Well, you can and we will.  Join Science Jim as we, literally, make rockets out of garbage. 

Estes Rockets
Friday August 9
10 - 12:00
$15.00

Today's the big day.  We are going to be building Estes Rockets!  These things have the potential to go 800 - 1000 feet into the air!  Rob Rich, the Caerus Academy math teacher, will help us find out just how high our rockets go.
















Monday, June 3, 2019

Fwd: Caerus Summer News: Mini-class and More!

Hi folks,

I just wanted to reach out and say THANK YOU for being a part of my classes this year.   There are so many different options for science education and I really appreciate the fact that you chose me for your science teacher this year.  Thank you! 

I hope you all have wonderful summers and I hope to see all of you next year.  For those of you that I will not be seeing, my best of luck to all of you in everything you decide to pursue and accomplish.

By the way,  just in case you are interested or know of someone who might be interested, Caerus Academy (the organization I do classes with in Chapel Hill) will be having a free mini-class in a few weeks.  The idea is to give everyone a chance to meet our three teachers and to ask questions/get information.  More information is below.  Please don't hesitate to post this to Facebook or any groups you may be a part of.  

Again, thanks so much for being a part of the Science Jim universe this year!  

Warmly,
Jim Mueller





Begin forwarded message:

From: Caerus Academy <caerusacademy@gmail.com>
Subject: Caerus Summer News: Mini-class and More!
Date: May 26, 2019 at 4:04:04 PM EDT

Caerus Summer News
Welcome to summer! We at Caerus hope your summer is off to a brilliant start!
 
In Caerus news:
1. Summer Mini-Class Scheduled
2. Possible HS World History for next year
3. Classes are filling!
Summer Mini-Class Scheduled
Do you have a student who is potentially interested in taking classes at Caerus Academy this fall, but would like a chance to "get their feet wet" first?

We have the perfect introduction for your student!

Join Rob Rich, Jen Mueller, and Jim Mueller on Saturday, June 15, from 10:00-11:30 a.m. for our summer mini-class on Navigation: Exploration and Discovery.

Spend a lively and entertaining hands-on morning with us as we cover the fascinating history, science, and math surrounding the topic of navigation. Learn about the discoveries that led to the Age of Exploration, and discover how sailors learned to reliably navigate the oceans. Learn how magnetism was crucial to navigation--and make your own working compass. Become your own Captain--learn to use the compass rose and the chart legend to plot a nautical course on your own full-sized coastline chart.

This class is being offered free of charge, but space is limited.  If you are interested in signing up, please visit our website to register.
 


Potential HS World History Class
A few have expressed interest in a HS World History class for the fall.  If there is enough interest, a possibility exists for running the class on Tuesday afternoons from 1:15-3:15.  You can read about the class here. If you are interested, please let us know!
 


Classes are Filling
Registration is ongoing, and classes are filling.  Some classes are over half-full, and close to waitlisting. Visit our website to see our class offerings or to register.
 
Please help us spread the word--we encourage you to pass along this information to anyone you think may be interested.
 
 
Enthusiastically,
The Caerus Team
 


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Saturday, May 11, 2019

Physics Quizzes PDF's

Hi folks,

I thought I had done this before but apparenlty they didn't all convert.  Hopefully this will work better.

Tuesday, May 7, 2019

Quiz answers

Hi folks,

Here are the answers to this week's quiz so you can study them for the final.



5/6 Physics update and homework due 5/13

Hi folks,

This week we did a bit of review for the end of the year and we also spent quite a bit of time looking at how refracting light works.

Next week we will primarily be doing review of some of the harder problems of the year and answering any other questions you may have regarding the final exam.  There will not be a quiz next week.

For homework this week, read chapter 29 in the book.  Pages 442 to 459.

Do Review Questions # 1 - 26

Best,

Jim Mueller
(919) 907-3217









Tuesday, April 30, 2019

4/29 Physics Recording - Light and Lenses

https://youtu.be/xk_P7x3vjds








Physics Quizzes

Hi folks,

Here are the quizzes for the year.

4/29 Physics update and homework due 5/6

Hi folks,

Today we took a bit of a deeper look into light and began our unit on optics.  We will do more with optics next week.

For homework this week…I've changed my mind.  :)

Remember that extra credit assignment I was talking about in class, well let's make it homework with extra credit possibilities.  

Here's the scoop.  Take a look at this article by Randal Monroe from his What If blog.   https://what-if.xkcd.com/3/  You'll see how he uses different physics concepts and applies them to real world things even though the situation is fictional.  (Unless somewhere out there Yoda really is hanging out on some swamp planet…it's possible.)  

Now you do it.  Pick any book, movie, comic or video game and apply some of the things we've learned this year.  I've included one of my ex-students papers for example.  It's very good be sure to take a look.

For homework,
Apply at least 5 different physics concepts to the situation.  Tell me how different physics concepts can apply to your situation.  A small list of some possibilities would be: gravity, mass, velocity, acceleration, force, impulse, momentum, any of Newton's laws, energy, power, and energy efficiency.   For example, in the Xena paper he used gravity, Newton's second law, acceleration,  resultant velocity,  energy and power.  

For extra credit,
Math it up!  I'll give you 2 points of extra credit (max of 10 points) for every formula you apply to the situation.  The Xena example includes 6 different formulas. 

Have fun folks!  I can't wait to see what you come up with.



Tuesday, April 23, 2019

4/22 Physics Recording - Sound

https://youtu.be/ynhkaAAscoo

4/22 Physics update and homework due 4/29

Hi folks, 

Today we covered several different concepts regarding waves and sound.

Homework due next week:

We haven't covered this material in class yet but it will let us get a bit of a jump on the next "unit".

Read pgs. 404 - 418 

Do Review Questions #'s 1- 23 on page 419 and 420





Monday, April 22, 2019

Little bit of outside time for physics today

Hi folks,

We are going to spend a little bit of time outside today during class so you may want to be prepared for a bit of somewhat chilly weather.

Best,

Jim Mueller
(919) 907-3217









Tuesday, April 16, 2019

4/15 Physics recording - Wrapping up Waves

https://youtu.be/XEpMQob8WbU

4/15 Physics update and homework due 4/22

Hi folks,

Today we took time to learn about natural frequency and resonance as well as a few more bits and pieces regarding waves and how they transfer energy. 

Homework for next week is to:

Read the Sound chapter in the book. Pages 390 to 400 (We've been talking on and off about sound this entire unit. This chapter will help to solidify a lot of the concepts we've already been discussing.)

Do Review Questions on page 401 #'s 1 - 20.

Best,

Jim Mueller
(919) 907-3217









Saturday, April 13, 2019

Link to the Slinky Interactive pdf

 Here is the .PDF that goes along with the Slinky Interactive.  The activity and PDF used to be on the same page but they seem to have changed that.  



Best,

Jim Mueller
(919) 907-3217







Tuesday, April 9, 2019

Link for the Slinky Lab

Hi folks,

I changed the link for the Slinky Lab before sending the email but apparently it didn't work.  Here's the link again.



Best,

Jim Mueller
(919) 907-3217









Monday, April 8, 2019

4/8/19 Physics Class Recording - More Waves

https://youtu.be/SCGDKo1B0Y8



4/8 Physics update and homework due 4/15

Hi folks,

Today in physics we got spent more time with waves and got the chance to really see the relationships between velocity, frequency and amplitude of a wave.

For homework this week:

Navigate to this page http://www.physicsclassroom.com/class/waves and read each of the sections indicated below.

Do all the questions on each one of the pages.


Use Slinky Lab Interactive to do the .pdf that accompanies the activity.

This may work better on some browsers than on others.  I find it works quite well with Google Chrome.  Does not seem to work with FireFox.


Vibrational Motion

Properties of Periodic Motion

Waves and wavelike motion

What is a wave?

Categories of Waves

Anatomy of a Wave

Frequency and Period of a Wave

Energy Transport and Amplitude of a Wave

Speed of a Wave

The Wave Equation


Monday, April 1, 2019

4/1 Physics update and homework due 4/8

Hi folks,

Today we moved forward in our energy block by getting to know some of the terms used to describe waves and wave motion. We will be doing more with this next week.

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

Extra credit possibility - look online to find the formula for the relationship between the frequency of a pendulum and the length of string. Using the formula, calculate the length of string necessary to create a pendulum with a 1.5 Hz frequency. Test your result at home find out if your prediction is right. Hand in your prediction, your result and your percentage error for extra credit.

Tuesday, March 26, 2019

3/25Physics update and homework due 4/1

Hi folks,

Today we took some time to do a lab based on the material we have been covering lately.  In the lab, we measured the gravitational potential energy of a falling object and we compared that to the work done by that object on another object to find the energy efficiency of the system.   This encouraged some careful data collection as well as allowing us to put some of our new formulas to use.

Two assignments for homework next week.

1.  Please answer the questions on the Energy Efficiency Lab Question and Answers .pdf.  

2.  Please do the enclosed Energy Problem Set with Answers .pdf






Monday, March 18, 2019

3/18 Physics Update and homework due 3/25

Hi folks,

This week we explored the ideas of potential energy and kinetic energy.  We also took a good look at the concept of gravitational potential energy.

For homework this week:

Read pages 111 - 117 in the text book.

Do questions 6 - 20 on pages 119 and 120.

Do Plug and Chug 1- 10 on page 120.

I've included answers below.










Monday, March 11, 2019

3/11 Physics Class update and homework due 3/18

Hi folks,

Today we continued to explore the relationship between force, distance and work as we took a look at the lever.  We discussed the three classes of lever and then did a lab where we could clearly see the effect of the placement of the fulcrum on the effectiveness of the lever.

For homework this week please do the following questions.  I've included your data sets so you can see your numbers.

1. What happened to the effort force as the fulcrum got closer to the load? 

2. What happened to the effort force as the fulcrum got farther from the load? 

3. What happened to the load force as the fulcrum got closer to the load? 

4. How about when the fulcrum got farther from the load? 

5. If you wanted to lift an object that you couldn't lift by yourself, where would you put the fulcrum? Close to, or far from the load? 

6. What relationship does distance have to force in regards to the lever?

7.  Make a graph with "Distance from the Load" on the x axis (the horizontal one) and "Effort Force" on the y axis (the vertical one).  Please use graph paper for this.

8.  We've stated again and again that simple machines do not change how much energy must be used to do a job.  So, what happened in this lab where we can clearly see that work in usually is not equaling work out?  Are we breaking the law of conservation of energy?  Nope, that cannot be broken so what is going on?  Something is not being measured/taking into consideration in this lab.  What is it?  


EXTRA CREDIT OPPORTUNITY!!  Once you answer #7 and know what is not being measured, can you figure out a way to calculate, using numbers you've already measured, what is missing?

ALSO, we haven't done much work with conversion in class and it's a good idea to be familiar with it.  Remember that energy can change forms and science has a variety of different units for energy depending on which form it is in.  This worksheet is a way to spend some time getting to know the different forms of energy and how they relate to one another.

I've included the answers for you so you know if you are on the right track.

ANOTHER EXTRA CREDIT OPPORTUNITY!!!  Eat a meal, then figure out how many calories you just ate by using one of many different websites or apps. (Something to keep in mind here, food calories are really KCals so be sure to use the right conversion factor. If a burger is 800 calories that's really .8 kcals)  Now convert that to Joules.  Now convert that to how much gasoline that would be.  Last but not least, if the energy in your meal could be converted in order to move a car, how far would the car go?  (Feel free to use the internet to find the miles per gallon of any automobile you wish.  I'd recommend a fuel efficient car if you want to go anywhere.  :)   )



Monday, February 25, 2019

Recording for 2/25 Physics class - Simple Machines

Hi folks,

I didn't have my camera with me today so I went back in time and pulled out a lecture from a year ago on the same material. Enjoy!


https://youtu.be/ATf3s7k0kog?t=952

2/25 Physics update and homework due 3/11

Hi folks,

First off NO CLASS NEXT WEEK!!  It's our spring break.  Enjoy the time off everyone!

This week we dove a bit deeper into the concept of energy and work by taking a look at simple machines.  We did a lab were we observed the relationship between force, distance and work as it applies to pulleys.  

For homework this week,
Read this website, starting on the introduction page and finishing on the terminology page (just keep clicking through).

Answer the following questions regarding the lab we did this week in class.

1.  With the pulleys, how did work out relate to work in?

2. What relationship did force have in regards to distance as you worked with the pulleys?


3. As you increased the number of pulleys, what effect did that have on the effort force? What effect did it have on the effort distance?


4. a. If you were lifting a load that required a force of 10N with one pulley, what effort force would be required?

b. Same question, but now you're using 2 pulleys?

c. How about 10 pulleys?


5. a. If you were lifting that load 1 meter, what would the work in distance be for one pulley?

b. 2 pulleys?

c. 10 pulleys?


These question refer to the reading or the lecture.

6. What is the definition of a simple machine?

7. What are 4 things simple machines do?  (Looking for the list on the second page of the website.)

8. What are 5 features of a simple machine?

9.  Name 6 simple machines.  Give me an example of each one.

10.  What is meant by the term "mechanical advantage"?

11.  When is the mechanical advantage of a slope greater?

12.  When is the mechanical advantage of a wedge greater?

13. When is the mechanical advantage of a screw greater?

14.  When is the mechanical advantage greatest for each of the 3 classes of levers?

15.  I've seen the "wheel and axel" characterized as a kind of a lever.  Can you see why this is true?

16.  How would you describe the pulley set ups you used in the lab using the definitions from this website?

17.  What is meant by input force?

18.  What is meant by output force?

19.  What is meant by "work in"?

20.  What is meant by "work out"?

21.  What meant by "load" when it comes to simple machines?

22.  What is meant by my statement "simple machines do a flippy floppy when it comes to force and distance?

23.  Do simple machines change the amount of work it takes to do a job?   (Feel free to use capital letters and exclamation points here.)

Tuesday, February 19, 2019

2/18 Physics Recording - Energy and Work




2/18 Physics Class and homework due 2/15

Hi folks,

Today we got a bit deeper in our journey to understanding energy by getting into the concept of work.  We will be getting a bit deeper into this as we use the concept to explore simple machines next week.

For homework this week:

Read pages 103 - 110 in the text.

Do questions 1 - 5 on page 119

Also, answer the following questions.  (Some are from the book, some are from last week's lecture.)

1.  What is the definition of work?



2.  What is the definition of power?



3.  What unit do we use for work?  



4.  What unit do we use for power?



5.  What is a Newton?



6.  Name 5 different types of energy?



7.  Describe a scenario where energy is changing forms at least 4 times (like the toaster scenario we did last week).



8.  How is work different from power?



9.  If a forklift is replaced with a new forklift that has twice the power, how much greater a load can it lift in the same amount of time?  If it lifts the same load, how much faster can it operate?



10.  Today we went outside and pushed my car.  What did that have to do with work?  What did it have to do with power?


11.  Using your numbers, what work did you do on my car?


12.  Using your numbers, what was your power?


13.  If, instead of pushing my car you pushed a wheel barrow that took 50 N to push, how far could you push that wheelbarrow using the same amount of energy you used to push the car?


14.  In the formula W=FD, what is the relationship between work and force (is it inversely or directly proportional)?


15.  In the formula W=FD, what is the relationship between force and distance  (is it inversely or directly proportional)?


16.  If work stays the same but the force it takes to move an object doubles, what happens to the distance it can be moved?