[Nfb-science] experiment with magnets

[Shanthala]

Thanks Robert.
I am planning to lower it to a crate of synthetic clay so that the
impression of the magnet can be taken too. So the student can try multiple
times to see that it always comes to rest in the same direction.
How would my student know that the magnet has come to rest? I am planning to
try with a light probe, but not sure if it will work. Is there a simpler
way?

-----Original Message-----
From: Robert Jaquiss [mailto:rjaquiss at earthlink.net] 
Sent: Thursday, December 18, 2014 9:53 PM
To: 'Shanthala'; 'NFB Science and Engineering Division List'
Subject: RE: [Nfb-science] experiment with magnets

Hello Shanthala:

     If I understand correctly, you are creating a compass by suspending a
bar magnet in air. As has been suggested, you could carefully lower the
magnet until it comes to rest. You might want to have the magnet rest on a
rug so it doesn't slide around as easily. If you are trying to determine the
poles of a magnet, using a magnet with labeled poles will identify the poles
of the test magnet.
There is also a solution using the magnetic field sensor one of the probes
available for the  Talking Labquest From Independence Science. See the site:
http://www.independencescience.com/

Hope this answers your questions.

Regards,

Robert

Robert Jaquiss

Email: rjaquiss at earthlink.net



-----Original Message-----
From: Nfb-science [mailto:nfb-science-bounces at nfbnet.org] On Behalf Of
Shanthala via Nfb-science
Sent: Thursday, December 18, 2014 5:50 AM
To: 'NFB Science and Engineering Division List'
Subject: [Nfb-science] experiment with magnets

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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