Re: [Phys-l] Newton's First law Demo

["John Clement" <clement@hal-pc.org>]

The first half is genuine, and actually demonstrates the second law, but not
the first because the objects actually move a bit.

This is the typical first law demo, which merely confirms what students
already know.  A demo which confronts their misconceptions is seldom done.
They have to see that when forces are balanced object MOVE at a constant
rate.

It is cute, but not very useful pedagogically.

John M. Clement
Houston, TX


Forum for Physics Educators <phys-l@carnot.physics.buffalo.edu> writes:
> For those of you who did not receive this link from Arbor Scientific,
> click on the following for an amazing demo of Newton's 1st.
>
> http://www.youtube.com/watch?v=-cM9S2AzU28&feature=player_embedded#
>
> Bob at PC

There is some funny jittering about halfway through the long table event. 
Makes me suspicious.   Photoshop can do really neat things.

skeptical at best..

Pete Lohstreter                           "Happy is he who gets to know 
The Hockaday School                 the reasons for things. "
11600 Welch Rd                          Virgil (70-19 BCE) Roman poet.
Dallas, TX  75229

214-360-6389 

plohstreter@mail.hockaday.org

See what our students are doing......
http://home.hockaday.org/physics/index.html


_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l