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Re: [Phys-l] heat/energy

or just put the shot in a plastic container, probably tube like and invert it many time and check the temp.

Joseph J. Bellina, Jr. Ph.D.
Professor of Physics
Saint Mary's College
Notre Dame, IN 46556

On Jan 28, 2010, at 7:43 AM, Michael Meyer wrote:

Anthony -

We take a tennis ball that's been filled with BB's and insert a thermocouple into it. We then drop the tennis ball repeatedly, and track the internal temp on a graph.

Michael R. Meyer
Lecturer/Lab Coordinator
Mich Tech Physics Dept.

----- Original Message -----
From: "Anthony Lapinski" <>
Sent: Thursday, January 28, 2010 7:34:52 AM GMT -05:00 Colombia
Subject: [Phys-l] heat/energy

I'm looking for some simple activities for a heat investigation/lab.
Specifically, when two objects collide, I want to show how kinetic energy
(loss) changes to work, sound, and heat. I thought about just hammering a
nail. They can clearly see the nail going into the wood and hear the
noise. I tried this (driving the nail about 1.5 cm), but could not really
sense a temperature change in the nail and hammer head. I then tried
pounding a lead brick with a sledgehammer, but both felt cool to the
touch. Maybe this has to be done for a longer time?

Does anyone have a demo/activity that "easily" shows a temperature rise
when two objects impact?

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