click here for the introduction to Joule and energyclick here to see and conduct the virtual paddlewheel experimentclick here for further information about Joule's life and workclick here to view Joule's apparatus and notebooksclick here for educational resources for teachers and students
WELCOME >> EDUCATIONAL RESOURCES FOR TEACHERS AND STUDENTS >> PADDLE WHEEL EXPERIMENT

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Educational Resources for teachers and students
The paddle wheel experiment introduced by James Joule


The answer must be no, because it is an important rule that energy cannot be destroyed. So, what happens to the energy?

The answer is that it changes back into heat and the object heats up. Now, this is a nice idea, but can we prove it? Well, the problem is that the change in temperature is not very large.

I decided that I would use these ideas and try to measure this change in temperature. Instead of just showing that the work became energy, and then heat, I wanted to measure exactly how much heat came out of a certain amount of work.