Gas station without pumps

2011 September 22

Tracker Video Analysis and Modeling Tool for Physics Education

Filed under: Data acquisition,home school — gasstationwithoutpumps @ 12:30
Tags: , , , ,

Thanks to quantumprogress’s blog I found what looks like a cool tool for science fair projects and physics instruction.  And it comes from Cabrillo College, the local community college:

Tracker Video Analysis and Modeling Tool for Physics Education.

My first several attempts to use it (months ago) were abject failures.  When I tried to load movies in any format, nothing happened.  Even the movies provided on the website failed to load. When I tried to load a series of still photos, it ran out of memory.

I mentioned the problem in comments on quantumprogress’s blog, and was told that the problem was that the video tracker relied on features of QuickTime 7 that were removed in QuickTime 10. It turns out that is not the problem.  Private e-mail from quantumprogress pointed me to a post by Rhett Allain, which explained that the problem is with the 64-bit Java interpreter.  Switching the order of the Java interpreters so that the 32-bit version is preferred fixes the bug. Now I have to figure out how to use the tracker and what I can do with it.  Luckily I got this message before I attempted the painful installation of QuickTime 7, which would have required finding the DVDs that came with the Mac to do the install from them.

Since then, I picked up a new version (Version 4.05) which uses a different video player, and Tracker seems to be working fine even with 64-bit Java.  I have only tried it with the provided videos, but I plan to record some videos with the home school students and see if we can get decent measurements that way.  The most important feature for us will be the “autotrack” of point masses.

2 Comments »

  1. […] the original post here: Tracker Video Analysis and Modeling Tool for Physics Education … This entry was posted in Uncategorized and tagged education, even-the-movies, first-several, […]

    Pingback by Tracker Video Analysis and Modeling Tool for Physics Education … | My Blog — 2011 September 23 @ 12:34 | Reply

  2. […] it to record a series of time and distance measurements for a moving object, or try learning to use Tracker to do video analysis. Eco World Content From Across The Internet. Featured on EcoPressed European Debt Crisis […]

    Pingback by Physics Lab 1: ultrasonic rangefinders « Gas station without pumps — 2011 September 23 @ 16:27 | Reply


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