Re: Weight and Mass

[Jack Uretsky <jlu@HEP.ANL.GOV>]

Hi Tina and all-
   No one seems to have asked this question: Why did you try to explain
the difference between weight and mass?  What was the context that called
for the explanation?  Arons emphasized the importance of:
   1.  Concept first, name later.
   2.  Wait until you need a concept before introducing it.

  We often introduce the notion of mass along with the notion of momentum.
Momentum is usually discussed in the context of collisions.
  When do we HAVE to differentiate between mass and weight?  Probably not
as early as you tried to do it?
                                      Regards,
                                                Jack



On Mon, 24 Sep 2001, Tina Fanetti wrote:

> I thought I had explained clearly what the difference between weight =
> and mass was to my students.  I asked them to write down any question=
> s they had at the end of class and some one wants me to explain the d=
> ifference again with examples.
>
> Thoughts?
> Tina
>
> Tina Fanetti
> Physics Instructor
> Western Iowa Technical Community College
> 4647 Stone Ave
> Sioux City IA 51102
> 712-274-8733 ext 1429

--
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                     <The 5-MINUTE ILIAD and Other Classics>