AP Relativity

Time Dilation

=> Since we opted to use class time to work on our group projects, the video listed above includes all of the information that was going to be addressed in class.  If you have any questions after viewing this video, please post a response on the blog.  There should be a comment balloon just to the upper right of this post.

 Length Contraction

=> This video is a short demonstration of the consistency of Time Dilation and Length Contraction.

Level II Rotational Dynamics

=> Rotational Dynamics Terms: Terms for rotational dynamics.  Use the comment button to address any term that you may be struggling with understanding.  I understand that there may be an issue opening the Word docuement for the terms.  Here is a PDFformat…give this a try…Terms-for-rotational-dynamics text

=> Click the link for the PDF solutions of he Torque, Balanced Torque, and Rotational Inertia worksheets. Torque Solutions

=> Here is the solution sheet from the angular momentum worksheet. angular momentum solutions

AP Physics

On Friday, 4/13, we took a look an analyzing series RCL circuits.  I created this Excel document that allows you to adjust inductance, capacidance, and resistance to see how the response changes in the circuit.  You will need Office 2010 version to view the file.Resonant Workbook

I also was able to use a screen capture program in attempt for yo to see a short clip of the changes that take place. Resonant Freq video

Level I Thermal Physics

This entry currently contains a term sheet and a test solution from the past

=> Here is a list of terms that you should be able to define.  It is more important for you to be able to understand these terms than to recite a textbook definition.  Comment on this blog if there are terms/definitions that you do not understand. A Thermal Physics Terms

=> AT Thermal(08) This is the solution to the test that was sent out via email.

=> On May 8th, we solved a sample problem in preparation for the test involving ice melting due to heat conducting through a glass.  the problem on the board was photographed and made into a short 3 minute movie.  The movie is here in mp4 format Conduction class problem and in WMV Conduction class problem.

=> Heat of Fusion Activity: Please read the process below to ensure completion.

  1. View the video in either format (mp4 Melting Ice) or (wmv Melting Ice).  Headphones are recommended as there is audio.  I would also recommend pencil and paper for note-taking.
  2. Write a lab report (50 points) including Purpose, Procedure (including all equations and derivations of equations), the data in graphical form, data aanalysis to determine the Latent Heat of Fusion of water, and a conclusion.  You should be within 30% of the accepted value.  The data is available here as an Excel table. You may plot in Excel (Need slope) or in Graphical Aanalysis. (Excel data link : melting ice).  Submit your report as a printed hard copy.
  3. Open the shared Google Doc “Melting Ice Discussion” and post an entry.  You will receive 30/30 points for making a relevant entry, 20/30 for a non-relevant entry.  You may post more than once.  The guidelines for this entry will be on the Google Doc.

Apparent Weight & Gravity; Level II

Terms

Apparent Weight terms Download the term sheet and complete

Respond to the Google Doc.  If it’s not yet shared with you, let me know via mailto:dshoemaker@mbgsd.org

Apparent Weight

apparent weight This video is partially recorded during a class, and partially recorded after a class.  Included is a review of apparent weight as done in the elevator, then an explanation to applying to centripetal acceleration on a roller coaster.

Test Prep

Worksheet distributed in class Satellite Motion and Apparent Weight with circular motion

PDF Solutions (to the above worksheets) to the Apparent Weight and Satellite Motion worksheet Gravity and apparent weight solutions

MP4 video solutions to the Satellite and Apparent Weight work sheets.  This video is an explaination during the creation of the above PDF solutions. Apparent Weight and Satellite solutions

Gravity

Gravity and satelite motion This is a video captured during class explaining gravity and satelite motion.

Solutions to the Gravity Worksheet distributed in class on March 26. gravity worksheet solution

Rotational Dynamics Unit Level I

Statics

Sample problem #1.  This file is a PDF.  The solution is not yet available, althought we have completed this in class.

Horizontal Bar supported by a pin and a cable

Sample Problem #2, “The Opera Singer”

Static problem 2 This is a PDF of the problem.

statics problem #2 solution.  This is a video created from still pictures, including explanations.

Sample Problem from class.  This is a video of a problem completed in the Pd 4 class including friction as a force acting.

Meter stick on board This video is constructed from still photos and explained with a voice-over.

Below is an advanced problem using the “Method of Joints.”  This extends beyond the scope of our course, but is a good exercise in problem solving.  At least give the file a look, as the concepts are actually easier than what we do in class.

Static problem 3 PDF showing and explaining the “Method of Joints.”

Class on April 3, 2012, we solved some sample problems with statics.  Some still photos of the one problem were collected and and video was created.  This video can be accessed by clicking this link. Static sample problem from class #1

Rotational Dynamics

Linear term to angular term transformation.  This video was captured during class.  The purpose was to show how all of the linear equations can be used with angular motion.  This video was captured in a year prior to this year, so the class was “different” than what was experienced this year.

Rotational Inertia This is a video captured during class from year’s past.  Rotational inertia is explained, and an example is worked through.

Rotational Dynamics solutions to the worksheet distributed on March 26 in class.  *NOTE* I found an two errors with #2 (and #5..Thanks McKenna)!!!  I failed to include the angular velocity.  The answer should be 11,000 Watts.  ALSO!!!  Find the error in #5…the answer should be 8.4 m/s….

Rotational Dynamics Key From years past.  Rotational Dynamics Quiz solution from class AQ rotational Dynamics 11