Tuesday, October 7, 2014

Thermal Expansion

August 28, 2014

The professor perform a demonstration for thermal expansion using a brass ring and a metal ball, and a metal strip with one side made out of brass and the other with Invar. The students conducted an experiment to solving the latent heat of vaporization and fusion.



As shown the brass ring expanded and made the hole big enough for the ball to go through.


This clip shows the Invar side of the strip being heated and is bending towards the Invar.
On this clip, the brass side of the strip is being heated but the bending is still towards the Invar.


A steamer is attached to the rod while a rotation motion sensor is used to measure the movement of the rod while being heated.
This graph shows the movement of the rod.
On this whiteboard are calculations solving for the type of metal the rod was made out of.


This was the setup to solving the latent heat of fusion and vaporization.

This was the plan to solving the latent heat and specific heat of water.

This graph shows the increase of temperature until it reached a plateau.


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