Keynote Speaker: Richard Muller

Richard Muller is a UC Berkeley professor of the popular “Physics for Future Presidents” class at UC Berkeley and author of a popular book of the same name. Muller discussed his development of his “Physics for Future Presidents” non-Physics major Physics course at University of California, Berkeley. The class has become a course that does not include as many calculations as a Physics course for Physics majors but rather fewer calculations that demonstrate more content. Throughout his development of the course Muller has discovered much about how students, both Physics majors and non-Physics majors, think and comprehend knowledge. His goal for every course is to teach students so that they can randomly recall relevant Physics knowledge when challenged. Muller shared many anecdotes about his students over the years demonstrating Physics knowledge they gained from his class. He also advocates using units and examples that are relevant and measurable for students. Muller uses the food calorie for energy and often has students compare large amount of energy, including the amount of energy released during the September 11^th attacks, to the amount of energy in calories in a chocolate cookie.

Richard Muller, keynote speaker

Several publications by Muller were previewed including his college level textbook “Physics and Technology for Future Presidents:
An Introduction to the Essential Physics Every World Leader Needs to Know” and a smaller non-textbook book called “The Instant Physicist.” Educators should write to the Princeton University Press to request a copy of the book, free of charge.

Muller did briefly discussed his work with climate change by showing a brief animation of the changes in surface changes over time. More information is available on the Berkeley Earth website and the video is available on YouTube.

Fall Meeting: Show & Tell Notes

[pictures taken today will be posted soon]

David with rubber bat

A detail shot using Fox's Infared camera

David Kagan, CSU Chico

David shared a rubber bat that he can use to find the “sweet spot.” Contact David for the information of the company that made it for him for $50. It was a movie prop but you have to tell them that you don’t want a dowel in it.

David shared video of a baseball hit at the batter’s footer with a regular video and then with the Fox News Infared camera. The

transfer of energy to the ball from the bat makes the ball hot enough to be bright white. The place where the baseball hit his foot also glows white; amazingly the ball is now only half white. More information is available on his website: www.phys.csuchico.edu/baseball

Frank Cascarano, Foothill College

Joulies coffee accessory

Frank with a Joulie

Frank shared a small object called a “Joulie” that has a material in it that melts at 140 degrees. When dropped in hot coffee it absorbed energy to cool your coffee but when your coffee cools below that same temperature it releases energy to the cup of coffee.

Bernard Cleyet, retired

Bernard Cleyet shares video

Bernard showed a video of a different glass materials heated and used as a conductor in a simple electrical circuit with a light bulb. The experiment used Sodium glass, pure silica, and Pyrex and plugged into an outlet. Bernard also offered lots of capacitors for anyone who needed some.

Don demos his micrometer

Don Rathjen, Exploratorium Teacher Institute

Don demonstrated a home-made micrometer that will measure one millimeter per rotation.  With 24 threads per inch, one turn is ~1mm, but it will measure within 10% error. Can use to measure the width of a hair, different wire gauges, etc. Don will be posting the instructions with photos on his website soon.

Shel Randall, Sierra College

POV Ray is a scripting tool that lets you make images with simple commands. Shel shared a short animation about thin film interference that he has made in the last year. He encouraged everyone to experiment with the animation program for use in their classroom.

A diagram of the iFly tunnel

John Boyce, iFly

John is the educational director for iFly in Union City, CA. John gave us a brief introduction of the facility and the science behind it. Field Trips with the program can be organized via John and previewed on the education portionof their website. If you book a field trip by Thanksgiving, you might win a free visit! Be sure to email John directly for more information: johnb@iflysfbay.com

Michael Walks

Michael Boykin, GVHS

Michael demonstrated a way of showing a real simple action explained in terms of Physics. He demonstrated how even walking is a complex set of procedural steps. He leads students to the idea that muscles are on the back of the body and the secret is pushing back against the floor in order to be propelled forward which can be related to Newton’s Third Law. Michael reminded us that getting up on the table or doing something silly is always going to get and keep your students’ attention.

Dean Baird, Rio Americano High School

Dean shared his “Scientists Valentines and “Back Masking” which involves playing a song backwards and hearing “secret messages.” Upon first listening, no one can discern any words but when the “secret message” lyrics are shown suddenly everyone can hear it. For more information can be found at www.JeffMilner.com/backmasking.

Bree Barnett Dreyfuss, Amador Valley High School

Bree suggested reading “The Pluto Files” by Neil de Grasse Tyson and using it with an astronomy unit to discuss the scientific process and classification of objects in the solar system. There was a NOVA Special and supporting material online as well.

Bree also previewed her work with Jon Brix on using laboratory notebooks from bound composition books in their Conceptual Physics course. If the experiment is successful this year she plans on offering a workshop at the Spring meeting, April 20 & 21, at Lake Tahoe.

Be sure to like NCNAAPT on Facebook as well!

Gunjan (aka Dr. G)

Dr. G demonstrated her programs that teach Physics to younger students using a volunteer child.

Leanna Felardo, Oroville High School

Leanna asked everyone to bring mystery equipment to the Spring meeting in Tahoe. She will be leading a workshop meant to  help identify unknown material and its use. You can also email Leanne with a photo of your mystery equipment at LFelardo@ouhsd.org.

Brian demos Torque

Brian Bellis, Hoover High School

Brian shared how he uses with a large wood spool to demonstrate torque. Brian also demonstrated an optical illusion of a little Red Dragon that he found online and folded up. The eyes of the little red dragon follow you as it moves.

Joel Rosenberg, Lawrence Hall of Science

Joel explained the process behind the CELL (Clean Energy Learning and Leadership) program. There is a visual representation of Power as the area of a box with the voltage representing the width and the current representing the height of a rectangle.

Peng Yav, Sebrante, IISME

Peng shared the details of the IISME summer program. Teachers have the opportunity to work in the industry during the summer to gain experience and money. The applications for the summer program are due this month! To learn more about Industry Initiatives for Science and Math Education (IISME) contact:

Shari Liss, Education Director at sliss@iisme.org  and (408)553-3179

Christina O’Guinn, Education Manager at coguinn@iisme.org and (408)553-2266

Fall 2011 Conference at UC Berkeley

Join us the first weekend in November at UC Berkeley for a day and a half of physics education.

Friday evening, November 4th

Social and Lecture Demo Show

• 5:30 No-Host Dinner at Chianlai Thai Cuisine, 2505 Hearst St.
• 6:30 Welcome Gathering and Social
• 7:30 Lecture Demo Sho

Saturday, November 5

Program

• 8:00 Registration, coffee, donuts
• 9:00 Welcome
• 9:15 Show and Tell
• 10:15 Break
• 10:30 “Physics for Future Presidents — A new approach for the non-science student.” Invited speaker: Richard Muller, Professor of Physics, U.C. Berkeley, Faculty Senior Scientist, Lawrence Berkeley National Laboratory
• 11:30 Group photo
• 11:45 Lunch
• 12:45 Business meeting (in just 15 minutes!)
• 1:00 Two options:
• Tour of Physics Research Labs. Guided tours of physics faculty labs in Astrophysics, Condensed Matter & Materials Science, and Atomic, Molecular, and Optical Physics, led by graduate students and researchers.
• Roundtable Discussion for high school teachers to discuss common problems and solution.
• 2:15 Break
• 2:30 Two options:
• Three concurrent workshops featuring labs and lecture demonstrations from Berkeley and other schools (contributions welcome). Spend the full period in one or circulate among the labs to see them all.
• Modeling Instruction introduction workshop
• 4:00 End

Map

View NCN AAPT Conference at UCB November 2011 in a larger map and/or get directions

Complete program

Download our complete program in PDF format here.

Registration

$20 for NCN AAPT members (includes one lunch ticket). First timers are always free (lunch tickets for first timers are $10). Lunch will be beef, turkey, or veggie sandwiches.

Pre-registration is not required, but will help us know how many people to expect:

(The registration below says it’s free, but that’s just because we’re not collecting payment online. The usual registration fees apply, including free admission for first time attendees.)

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Fall Conference 2011 Invited Speaker

We are pleased to announce that the invited speaker for our Fall 2011 Conference will be UC Berkeley’s own Richard Muller. Muller is a professor of the popular “Physics for Future Presidents” class at UC Berkeley and author of a popular book of the same name. Muller is also a Faculty Senior Scientist at the Lawrence Berkeley Laboratory and associated with the Institute for Nuclear and Particle Astrophysics. Read more about Muller’s career, interests and most recent book, “The Instant Physicist,” on his website.

Save the Date for the UC Berkeley Physics Department Demo Show Friday Nov. 4th and the section Conference on Nov. 5th!

Spring Section Conference

Our spring 2011 Spring Conference has two components:

Highlights:

Friday Evening Social

April 22: San Mateo High School

• Hot Dog Reception
• Tour of new biotech wing
• “My Favorite Movie Clips” presented by Adam Weiner and Paul Robinson

More details below

Saturday Mini-Conference

April 23: Exploratorium, San Francisco

• Show and Tell
• Invited speaker, Adam Weiner: “Don’t Try This at Home! The Physics of Hollywood Movies”
• Brief business meeting
• “A Physics Teachers’ Guided Tour of the Exploratorium” by Paul Doherty
• Contributed presentations

More details below.

Read more »

Modeling Workshop

20 educators attended the afternoon “Introduction to Modeling” workshop lead by Lee Trampleasure and Jon Rockman. Educators were lead through the development of one of the Modeling “paradigm labs.”  The lab used constant velocity cars to develop position vs time data that could be graphed to determine the average velocity of the cars. After groups graphed their data, they created whiteboard presentations of their results. After a discussion of the results, Lee presented data from his classes this year, showing the results of 20 student groups.

For more information on Modeling Instruction, visit modeling.asu.edu.

Fall 2010 Meeting summary

This post includes a summary of our Fall meeting (it is being expanded during this week).

You  can download and print a certificate of participation here.

• Share and Tell presentations.
• Keynote: Blinky Lights
• Modeling Instruction introduction workshop
• Meeting announcement/description.

Fall Mini-Conference Share n Tell

At every section meeting one of our most popular portions is the Share n Tell during which participants have five minutes to share a demo, idea, concept, book, problem, example, etc. Talkative participants must fear the dreaded gong at the end of five minutes. Below please find notes and relevant links from the special double session of Share n Tell from our Fall NCNAAPT Section Meeting and mini-conference:

Don models Piezo Electric Cars

Don Payne, Carondelet High School

A Piezo Electric popper (spark fed) has been adapted to drive a small toy car. A film canister is filled with either  ethanol or Bonaca breath spray. By igniting the propellent the can be shot in one direction as the car moves in the other. Can be used for  momentum collisions or projectile motion and potentially adapted for use with photogates. Black film cans with gray lids with a lid work the best and a Nerf ball was added tot the launching end of the can for safety for projectiles. Nicknamed as the “Bonaca Cannon” at the conference, the car is made from a small wood base, Pisco (?) aluminum axle wheels and electric leads for ignition.

Piezo Electric Car

Piezo Electric Car

Piezo Electric Car

Piezo Electric Car 4

Paul Robinson, San Mateo High School

Horace (Rog) Lucidio taught in Pittsburgh and then Fresno. He has since retired and published a book called “Educational Genocide” just recently out. It is available from Amazon or AbeBooks, and comes highly recommended. Read the press release here.

Bernard C, retired

Bernard demonstrated a “Poisson’s Spot” demonstration, misnamed because you shouldn’t get light behind a barrier which in this case is a 4” “ball bearing” used to block the microwave signal AC Amplifier (with sound signal so it doesn’t need to be in the dark).  Can be shown to block specific zones so that it acts as a positive lens and increase the size of the signal using Fresnel Zoning.

Bree models Center of Mass projects

Bree Barnett Dreyfuss, Amador Valley High School

Bree shared a “Center of Mass” Project that students do while studying Torque and Center of Mass. The project is adjusted for a variety of levels including freshmen in Conceptual Physics. There is a website with details and YouTube video that explains the details of the project to students. Sophomores to Seniors in regular Physics have to bring in a balanced object, either a mobile, 3D sculpture or flat oddly shaped object. The flat character/ geographic region is the most popular and allows for the most creativity. Students have also used powerpoint, made videos with classmates and even hand drawn animations in order to demonstrate their understanding of Center of Mass. For younger freshmen, the project is restricted to create a flat creative object and bring it in to class. Then together, they learn how to find the center of mass of their object using a plumb bob.

Cailin models her homemade wind tunnel

Cailin Creighton, iFly educational leader

Cailin is in charge of the education program at the Union City iFly facility and has offered affordable field trips for teachers. She shared models and instructions of a handmade vertical wind tunnel out of a cereal box and plastic bottle. Instructions to come soon. Cailin used a Kellog’s 18 oz cereal box and an Archer Farms water bottle – plastic not glass to create the frame of the wind tunnel. A 80 mm commuter fan hooked up to a 9V battery runs the fan and allows a  light object like tissue paper to fly. This model models the Hollywood (single side tunnel) while the local Union City one has two sides of fans feeding in to the tunnel. Turning vanes are not necessary for the cereal box model due to the simplicity of the design. It was suggested to try adding dry ice to simulate a tornado. 1” Styrofoam balls cut in half will fly, while a whole ball will not fly which is interesting because they have the same surface area but a different weight.  Cailin’s contact information is Cailin@iflysfbay.com.

Paul and Paul model reaction time

Paul Doherty, Exploratorium

A baseball bat is adapted to be used for a reaction time test.

Paul shared the classic Reaction Time experiment adapted to work for a baseball bat that is marked with reaction times. Average human reaction is 0.16 s, volunteer Pablo got 0.22s, then 0.2 s which is consistent with experiments as students improve with time.

Putting a stiff card at the top of the baseball bat acts as an amplifier. You can strike the bat at different locations and hear an amplified thud. The sound will decrease as you reach the “sweet spot” which is a vibrational node. This is why hitting a home run on the sweet spot feels better than hitting off the spot.

Don Rathjen, Exploratorium

A Fan cart is helpful in teaching Newton’s Third Law by moving the fan and sail positions to show that when both are on the same cart it will not move. Don has a fabulous design that is very low friction. Don also added a waterbottle that was cut in half with the “sport top” that pops up that can be used to create a consistent drip timer. This can be added to the fan cart to work as a drip timer for motion to model motion.

Don Rathjen's Fan Cart

Newton, NC's 3 laws

Lee Trampleasure, Carondelet High School

Lee (who had lost his voice) shared a humorous PowerPoint on Newtons three laws (Newton, North Carolina, that is) with single picture explanations of each of Newton’s Three Laws:

• 1^st law: 35 mph Speed Limit sign
• 2^nd Law: “no left turn” sign
• 3^rd Law: “no parking” sign

Pauline models torque

Pauline Seales

Pauline described a demo in which she asks a “strong” student to bend a nail with their bare hands, which they can’t do. She then asks a “small” student to bend it and hands them two pieces of metal pipe that are inserted on each end of the nail (increasing the lever arm distance) and they are able to bend it easily.

Pauline also modeled using a pre-cut mop handle attached with a PVC pipe to show how balanced Torques does not mean balanced forces. Students often don’t believe her and have to weigh the broom head (heavier) and handle (lighter) themselves because they don’t believe her.

Pauline with precut mop

Dean Baird, Rio Americano High School

Showed Simple Harmonica Motion:

Simple Harmonica Motion

Dean also discussed a large mural of white light reflected on an equilateral triangle outside his room with almost the right angles. He showed a video of a Newton’s Cradle that does not behave normally as discussed in his blogpost.

Paul Doherty added that the Exploratorium recently created a large Newton’s “ridable” Cradle with 1 meter diameter Lexican balls. Paul also told us about the Exploratorium’s After Dark adult only program that goes from  6-9pm, on the first Thursday of every month.

Rob Benn, American High School

Using video in the classroom using iMovie, iPods, iTouches, etc. in order to model Bridges, motion at Great America, etc. Can also be used with high speed cameras. VideoPoint is additional software that you can use. The FH100 Casio will do 1000 frames/ second but is $300. Students participate in Knieval Physics which makes for interesting videos. Due to the wealth of information available from Rob, he was encourage to do a workshop next time.

Dean Baird, Rio Americano High School

Dean showed an additional short film of a Newton’s Cradle in which the balls appear to fly apart. After showing a hint video we were able to see the answer, all videos available on his blogpost.

Dobbson models a Gaussian Cannon

J Robert Dobbson

Dobbson shared a Gaussian Cannon that can be made rather than bought with ½” steel ball bearings and neodymium magnets on a plastic ruler. Having an assistant pull the last ball, last two balls and last three balls off the end you can learn that the approximate magnetic strength changes with proximity to the neodymium magnet. Allowing the first ball to fall down a small incline the loss of potential energy becomes kinetic energy. The ball also gains energy as it is attracted to the magnet and as the energy grows the last ball flies off at a larger velocity.

Dobbson also shared a coil of magnetic wired that he had to modify so that it appropriately showed the magnetic field inside the coil without being affected by the lights. He coiled 10 cm, made a Uturn in the coil for 20 cm, used another Uturn and then another 10 cm.

Rodger talks about temperature

Rodger Moorehouse, Pomona

Rodger discussed the history of different temperature scales and their origins.

Bree Barnett Dreyfuss, Amador Valley High School

Bree shared a variation of the Blinky Light activity from her website as well as an online game about Torque called Levers.

Paul Robinson, San Mateo High School

Paul shared the ramp he designed which is very repeatable and consistent. He was unable to show his baseball videos but they are available on his website.

Paul's ramp

Fall Section Event/Meeting: November 5th & 6th, 2010, Concord, CA

You are invited to our Fall 2010 Mini-conference / Meeting, Friday and Saturday, November 5th & 6th.

Friday afternoon/evening

Program

Join us for a tour and presentation on some of the cutting edge energy research being conducted at the DOE Joint Genome Institute.

5:00-6:30 PM

Social

Food and drink (no host) and socializing at one of the Bay Area’s quality brewpubs.

7:00-9:00 PM

Pyramid Alehouse, Brewery & Restaurant

1410 Locust Street

Saturday, November 6th

Mini-conference and Meeting

7:45-3:00

Carondelet High School

7:45 Registration, Coffee, Donuts and other culinary delights

Sign up for lunch if you would like one.

8:55 Welcome and Announcements

9:00 Show & Tell — Part 1

Share your favorite demonstration or teaching tip. Since new teachers and section members will be at this meeting, you are encouraged to dust off some of your oldies but goodies. If you have handouts, please bring 75 copies. Time limite is 5 minutes per person or you risk the dreaded Gong!

10:00 “Blinky Lights — Quantized Motion”

Invited Speakers: Paul Doherty & Don Rathjen

Join the crew from the Exploratorium investigating the motion of objects using time exposure digital images of Inova microlights which blink at 100 Hz. We’ll do quantitative analysis of constant velocity, accelerating and rotational motion. We’ll produce some artistic images as well. Bring your own digital camera and learn ahead how to take long exposures.

11:15 Break

11:30 Business Meeting

12:00 Show & Tell — Part 2

12:30 Lunch

For those staying for the afternoon workshops, or just to socialize.

1:00-3:00 Workshops

Workshop A: Introduction to Modeling

Lee Trampleasure, Carondelet High School

Have you been interested in the Modeling Method of High School Physics Instruction? Come to a two-hour mini-workshop to get your hands on some of the activities, and have some of your questions answered. “Modeling,” developed in 1990, cultivates physics teachers as experts on effective use of guided inquiry in physic teaching. Program goals are fully aligned with National Science Education Standards. The Modeling Method corrects many weaknesses of the traditional lecture-demonstration method, including fragmentation of knowledge, student passivity, and persistence of naive beliefs about the physical world. The Modeling Method organizes the course around a small number of scientific models, thus making a more course coherent.

Workshop B: Exploring Optics at the Convenient Three Centimeter Wavelength

Bernard Cleyet, Retired

While many of the properties of E-M radiation are readily demonstrated with visible light (the geometric) some are not (many physical), because of its microscopic wavelength. The invention of the klystron and more recently the Gun diode makes it possible to more easily demonstrate those of microscopic character, because their generated wavelengths are about five orders of magnitude greater. These include measurement of the evanescent wave resulting from frustrated total internal reflection, Miraldi’s spot, zone plates, and the phase speed of E-M radiation confined in a waveguide. We can demonstrate some of these using the X-band radiation generated by a WW II surplus klystron. Several firms sell instructional systems using Gun diodes. However, they don’t include the apparatus or directions for the above and other more esoteric effects. If time permits, we can explore those in addition to the former listed above. They include dichroism (birefringence), retardation plates, and various optical elements using artificial dielectrics including optical activity. The commercial systems include such basic demonstrations as polarization and refraction. If desired, we can do these, also.

Registration

$10 for NCNAAPT members; Free for first-time attendees and students.

Lunch tickets will be available for $10

If you know you’re coming, please RSVP to let us get an approximate head count. If you decide to come at the last minute, please come even if you didn’t RSVP.

We will have “proof of attendance” letters documenting attendance for any teacher who needs one for their district/credential professional development purposes.

Dues and Don’ts

Section dues are $25 for the academic year, due each Fall. If you cannot attend the meeting, remain an active member and ensure you’ll receive all our mailings by sending dues to our treasurer, Dennis Buckly, PO Box 735, Brentwood, CA 94513

Lodging

Three local hotels include:

or

or

Exploring Optics at the Convenient Three Centimeter Wavelength

RSVP

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