[Nfb-science] experiment with magnets

Shanthala shanthala at enable-india.org
Thu Dec 18 16:06:11 UTC 2014


Thanks so much. I will try this with my student.

-----Original Message-----
From: Kelly Thornbury [mailto:kthornbury at bresnan.net] 
Sent: Thursday, December 18, 2014 8:35 PM
To: Shanthala
Subject: Re: [Nfb-science] experiment with magnets

Lowering shouldn't change the compass orientation of the magnet. I use this
technique all the time in orienteering classes. You could try hanging the
magnet from a supported horizontal dowel and raise/lower as if on a pulley.
It just takes a steady hand, but the technique has never led me the wrong
way (in relation to classmates using sight and a compass) on the course.  
On Dec 18, 2014, at 7:30 AM, Shanthala wrote:

> Lowering makes it move again!
> 
> -----Original Message-----
> From: Kelly Thornbury [mailto:kthornbury at bresnan.net] 
> Sent: Thursday, December 18, 2014 7:27 PM
> To: Shanthala; NFB Science and Engineering Division List
> Subject: Re: [Nfb-science] experiment with magnets
> 
> Once it settles lower it onto a desk top. 
> 
> Sent from my iPhone
> 
>> On Dec 18, 2014, at 06:50, Shanthala via Nfb-science
> <nfb-science at nfbnet.org> wrote:
>> 
>> Hi all,
>> 
>> My student and I are conducting few science experiments these days and
> this
>> week the topic is magnetism. We want to do the experiment where the
magnet
>> when suspended freely comes to rest in north-south direction.
>> 
>> My question to you all is whether there is a way to find out how the
> magnet
>> is aligned when it comes to rest. We cannot touch it since it starts
> moving
>> the moment we touch. How can the student know the alignment without
> touching
>> it?
>> 
>> Thanks much,
>> Shanthala
>> 
>> 
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