UBC PHAS Demonstration Room Catalog

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.

====== Conversion Of Work To Heat ======

{{tag>lead shot tube cardboard conservation_of_energy untagged unlocated}}

<WRAP box right>
{{ConversionOfWorkToHeat_003.jpg?400|}}

// //
</WRAP>

===== Description =====

Convert work from raising lead shot into heat.


energy conversion, Newton's first law   

Updated 04/25/13



===== Purpose =====


To show that the work done in raising lead shot many times in a tube is converted to heat.  



===== Apparatus =====


1 m cardboard tubing, 1 kg lead shot, thermometer, rubber stops  



===== Setup =====


Take the temperature of the lead shot to begin with. With the shot in the tube keep turning the tube (about 50 times) allowing the shot to move from one side to the other. Take the temperature immediately afterwards. Work done on the shot is, W = 50*1*1*9.81 = 490 J. Heat gained by the shot is mC(dT) where m = 1 kg and C = 12.6 J/(kg 'C). Hence dT should be about 3.9 'C, but is generally less depending on the heat loss from the tube.  



===== Notes =====



<WRAP group>
<WRAP half column>

</WRAP>
<WRAP half column>

</WRAP>
</WRAP>


<WRAP box>
<WRAP centeralign> // Demo room information // 
</WRAP>
<WRAP tablewidth 100%>
| **Location** | ---- |
| **Maker** | Unknown |
| **Current State** | Working |
</WRAP>
</WRAP>

UBC PHAS Demonstration Room Catalog

User Tools

Site Tools

Page Tools