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Active Physics
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Active Physics, 2nd Edition
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Chapter 1 - Physics in Action
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ACTIVITY 7 - The Mu of the Shoe (S2, A6)
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General suggestions/questions/comments
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admin
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General suggestions/questions/comments
«
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July 15, 2005, 09:05:00 AM »
We have provided opportunities below to comment on the What Do You Think or the For You to Do or the Physics Talk. If that level of organization is not suitable for you for comments, then please use this thread. Do you have any general suggestions/questions/comments that you would like to make about this Activity?
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Katheryn "Katy" Shannon
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Re: General suggestions/questions/comments
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Reply #1 on:
July 27, 2005, 07:32:48 AM »
I found that in the movie "Constantine" there is an excellent example of a very high mu, as the devil tries to pull a condemned man into hell.
Posted by Kate for John
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cswartzwelder
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Cheryl Swartzwelder
Re: General suggestions/questions/comments
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Reply #2 on:
July 27, 2005, 07:35:01 AM »
Adding the second shoe on top of the first to double the weight is a great idea. However, students must be careful that the weight of the second shoe is distributed equally or the area in contact will change and affect mu greatly.
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Janie Martin
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Janie
Re: General suggestions/questions/comments
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Reply #3 on:
July 27, 2005, 07:45:20 AM »
Yes my first response was to try to fill the shoe up with weights. That was good thinking.
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Kristie Reighard
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Kristie Reighard
Re: General suggestions/questions/comments
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Reply #4 on:
July 27, 2005, 07:48:13 AM »
There are many great movie clips to show. Try some that are not rated R. Administratiors will appreciate that.
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Katheryn "Katy" Shannon
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Re: General suggestions/questions/comments
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Reply #5 on:
July 27, 2005, 07:50:14 AM »
It was quite a powerful example of effect of frictional force on the ability to drag a body.
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KathyLucas
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Kathy Lucas
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Reply #6 on:
July 27, 2005, 07:52:13 AM »
A good extension would be to have the students collect data on different surfaces around the school(ramps, stairs, classroom floor, hallway,...). Wetting the desktop with furniture polish makes it real interesting. Just be careful not to get any on the floor tile or a safety issue ensues.
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Paul W. Shafer
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Re: General suggestions/questions/comments
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Reply #7 on:
July 27, 2005, 08:11:41 AM »
We have used different oils to test viscosity versus friction. The kids have misconceptions about 50W oil versus a 2W machine oil versus axle grease versus TFE powder.
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Alan Nauertz
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Re: General suggestions/questions/comments
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Reply #8 on:
July 27, 2005, 09:25:49 AM »
Quote from: Katheryn "Katy" Shannon on July 27, 2005, 07:32:48 AM
I found that in the movie "Constantine" there is an excellent example of a very high mu, as the devil tries to pull a condemned man into hell.
Posted by Kate for John
Here is a sample test
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Active Chemistry
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===> Chapter 1: Fun with the Periodic Table
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=====> Activity 5: Purification I-Suspended Particles and Iron
=====> Activity 6: Purification II-Water Softening
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=====> Activity 8: Disinfection
=====> Chapter Challenge and Assessment
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Active Physics
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===> Chapter 1 - Physics in Action
=====> General suggestions/questions/comments
=====> ACTIVITY 1 - A Running Start and Frames of Reference (S2, A1)
=====> ACTIVITY 2 - Measuring Motion
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