Date: Wed, 9 Feb 2011 21:16:13 -

Author: --- RICHARD HECKATHORN

Subject: Re: inexpensive masses?

Post:

------=_Part_2649484_2018691311.1297304173649
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

Greetings,

If you can find some 35mm film canisters, fill them with the number of
pennies to get the weight you want. Drill a small hole in the bottom and
insert a screw eye into it. Use the screw eyes that have a screw end
that accepts a nut, not the pointed type that one screws into wood.

Can also use wood blocks with a screw eye screwed into it.

Dick

----- Original Message -----
From: Karen Hunter
To: tap-l@lists.ncsu.edu
Sent: Wed, 09 Feb 2011 18:01:21 -0500 (EST)
Subject: [tap-l] inexpensive masses?

I am putting together some experiments on the topics of forces and simple machines to do with the 3rd graders at our local elementary school, and I'm in need of suggestions for inexpensive objects to use for masses / weights.

I bought a box of washers, which were about 9g and 10 cents each, but ideally I'd like to find something where each mass is somewhere between 20 g to 50 g, and less expensive :).

I appreciate any ideas you may have,

Karen Hunter

------=_Part_2649484_2018691311.1297304173649
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: 7bit

Greetings,
If you can find some 35mm film canisters, fill them with the number of
pennies to get the weight you want. Drill a small hole in the bottom and
insert a screw eye into it. Use the screw eyes that have a screw end
that accepts a nut, not the pointed type that one screws into wood.

Can also use wood blocks with a screw eye screwed into it.

Dick----- Original Message -----From: Karen Hunter To: tap-l@lists.ncsu.eduSent: Wed, 09 Feb 2011 18:01:21 -0500 (EST)Subject: [tap-l] inexpensive masses?I am putting together some experiments on the topics of forces and simple machines to do with the 3rd graders at our local elementary school, and I'm in need of suggestions for inexpensive objects to use for masses / weights. I bought a box of washers, which were about 9g and 10 cents each, but ideally I'd like to find something where each mass is somewhere between 20 g to 50 g, and less expensive :).I appreciate any ideas you may have,Karen Hunter
------=_Part_2649484_2018691311.1297304173649--

From tap-l-owner@lists.ncsu.edu Wed Feb 9 21:51:23 2011

Back