FizziksGuy

Sounds like a great plan to me! I love seeing grades (and more importantly, learning) on a constant upward trend!!!

You've got the right idea, but thankfully with a wagon, you don't have to lift niece Emma. Because it's on wheels, instead what you apply is a force on the handle bar at some angle theta, so the work done will be F*d*cos(theta). More info here: http://www.aplusphysics.com/courses/honors/WEP/work.html

Wow, flexible circuits -- pretty amazing stuff! Hard to imagine as well the current level of integration on computer chips, with critical dimensions on transistors now cutting into the 14 nanometer node. Absolutely amazing!

Name: Center of Mass - Fosbury Flop Category: Kinematics Date Added: 03 March 2014 - 07:27 AM Submitter: FizziksGuy Short Description: An analysis of the Fosbury Flop high jump technique from the perspective of center of mass View full lesson: http://ed.ted.com/lessons/an-athlete-uses-physics-to-shatter-world-records-asaf-bar-yosef When Dick Fosbury couldn't compete against the skilled high jumpers at his college, he tried jumping in a different way -- backwards. Fosbury improved his record immediately and continued to amaze the world with his new technique all the way to Olympic gold. Asaf Bar-Yosef explains the physics behind the success of the now dominant Fosbury Flop. Lesson by Asaf Bar-Yosef, animation by NEIGHBOR. View Video

Great analysis of a fun movie!

File Name: Circuits Mistake Game Review Activity File Submitter: FizziksGuy File Submitted: 27 Feb 2014 File Category: Electricity Students are presented with a number of problems and solutions that have subtle mistakes. It is their job to find the mistake, fix it, and present their solution to the class. Designed as a pre-exam review activity.

File Name: Inquiry Lab - Resistivity of Play-Doh File Submitter: FizziksGuy File Submitted: 27 Feb 2014 File Category: Electricity Students will independently determine the resistivity of an unknown material (Play-Doh) using common electrical equipment available in the lab. Students have been introduced to Ohm’s Law and the Resistance of a Resistor formulas previously, and have had a very brief introduction to building electrical circuits from a schematic from the “Resistivity” Lab. Students have also used ammeters and voltmeters in the resistivity lab, though all the equipment is still quite unfamiliar. The goal of this activity is to reinforce Ohm’s Law and the resistance equation in a practical sense, while guiding the students to develop their own experimental procedure and analysis in an inquiry-based format. The added challenge of students working with circuit schematics to design and build their own circuits will also provide them a head start into our next activities, focused on series and parallel circuit analysis. Objectives: CIR.A2 I can utilize Ohm’s Law to solve for current, voltage, and resistance. CIR.A3 I can calculate the resistance of a conductor CIR.B3 I can use voltmeters and ammeters effectively Materials: Play-Doh Ammeter Voltmeter DC Power Supply Connecting Wires

Wow, 2 football fields away (200m)... amazing!!!

Looks like your integration is off a bit... More math here, then: From there you just substitute in your specific values for the distance from the line and the reference distance (2.5m)

Good strategy, but the electric field due to a line of charge isn't lambda/(4 pi e0). Use Gauss's law to derive it. It's in your notes, in the Gauss's Law video, and also in the course guides.

It's all about center of mass...

Not quite sure where the music plays in the whole work-energy theorem thing.

Great post math geek, things for the insight! And I agree, I don't think it's possible to remain conscious as you read a physics book page by page. Reading the book (to me) involves trying to do the practice problems, looking back for help when I get stuck, trying to forge ahead, going back, ... Best of luck to you!

Hi Judy... something like this? http://www.aplusphysics.com/courses/regents/worksheets/ws_index.html

What a catastrophe!

I can only imagine what a night in a hotel like that would cost. Oh my!

Was just reading about this from my Twitter feed the other day... Mind blowing!

I had my doubts, but yes, this is funny!

There's tons of physics in video games, and the industry is hard pressed to find good designers and coders who also have a strong physics background. Great potential career field!

So there's even physics in Lord of the Rings? Interesting! So why do swords have to be sharp (in physics terms?) Would make a great follow-up.

Have you ever gone curling? There's a curling club in town!

Wow, what a moving blog post. You must have been hit by bovine inspiration, and really milked it for all its worth.