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February 22, 2012

Search Results Category: Current Physics Events

August 31, 2011

Spreadsheets and Graphing

by admin — Categories: 2010/11 Agendas, Current Physics EventsNo Comments

Today we are going to graph the data for the five cars (or baby carriage or bike)  we measured traveling along Bancroft.

1. Start OpenOffice [You will find it in the Applications folder], don’t put any of your personal info in when it asks you, just click next next next until it asks you if you want to register, then click Ido not want to register.

and select Spreadsheet when it asks about the document you want to create.

2. Enter the  data for the first car into the cells of the spreadsheet:

 

3. Drag your mouse from the top left cell all the way to the bottom right cell [Don't Grab the BLACK BOX!!!]  if you do, Command-z to undo.  Then press the Chart button:   When the Chart Wizard pops up, choose xy scatter.

4. Click “Chart Elements” , unclick “Display Legend”, enter the title as well as the X and Y Axis names, and click Finish.

Graph each car and save your document as your name and graphing like this: Tony Farley graphing.ods

August 30, 2011

Tuesday, Aug. 30

by admin — Categories: Current Physics EventsNo Comments

1. Speed

2. Calculate the speed of each car from yesterday.  Put the calculations and results on your graph.

3. Conversion with the computer.  Convert your speeds to Miles/Hour to see who was speeding ( the limit is 25 mi/hr).

Homework: Read pages 10-12 and answer the questions on page 13.  Write out the questions and answers completely.

August 25, 2011

Thursday August 25th

by admin — Categories: Current Physics EventsNo Comments

No books needed today

1. Homework Check

2. Table of Contents, title, and number the page with your homework with a big 1 inside a box.

3. Discussion of homework problems [Notes on page 2]

4. Measurements and calculations [Page 3]

Task: Measure the height, width, and length of the top of your table.

Calculate the area and volume of your tabletop.

January 4, 2011

Tuesday 1-3

by admin — Categories: Current Physics EventsComments Off

1. Go Here.  It’s the coolest Periodic Table around.

2. Pick an element, any element and click on it.  Draw a square in your notes and put everything in the square in the square in your notes.

3. Under the square, state whether it is a solid, a gas, or a liquid at 273 K, its melting point, and its boiling point.

4. Click the Orbitals tab and  draw the Obitals (the little picture that changes as you mouse over different elements.)  Do your best.  This is what the atom really looks like.

5. Do 1-4 above for two other atoms.

6. Now go to the photographic periodic table here.

7. Click on each of your three elements from above and write down what each element is used for, what it looks like, and something interesting about it.

Monday 1/2

by admin — Categories: Current Physics EventsNo Comments

1. Atoms

2. Protons, Neutrons, Nucleus, Electrons

3. Watch first 15 min. of The Lives of Stars.

October 9, 2010

Wow, NIF

by admin — Categories: Current Physics EventsNo Comments

http://www.boston.com/bigpicture/2010/10/the_national_ignition_facility.html

August 12, 2010

LHC Is Working Fine!

by admin — Categories: Current Physics EventsNo Comments

In the first 4 months of its operation, the LHC in Geneva Switzerland has found all the particles in the Standard Model.  That includes the Top quark found in ’95.  That means that the LHC has done in four months what the rest of the accelerators in the world took a hundred years to do.  Is there a Moore’s Law for accelerators?  I don’t think accelerators go at the pace of computer technology, there are no market forces pushing it forward.  However, basic scientific research requires shared vision among governments and people.  Vision and cooperation does not move at a steady pace, so with accelerators and other Big Science ventures, the pace jumps in 10^6 power steps every 30 years or so.  Call it Faley’s Law.

Here is a good story about what the LHC has done:

http://news.cnet.com/8301-30685_3-20011612-264.html

Yes, I like putting my name on things that I come up with.  That reminds me of The Farley Effect.  This is a way to find the internal resistance of a power source by adding more and more resisters in parallel until you have a short circuit (or almost).  You can  graph voltage and current to find a line that does not intercept the origin.  Where it intercepts, gives you your internal resistance.  Yes, it’s called the Farley Effect because I came up with it.

Here is a paper (page 27) where you can see it quoted as being The Farley Effect:

http://www.eeps.org/pdfs/MathPhysCooley2004.pdf

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