08-25-08 Temperature and Heat Transfer

Temperature and Heat Transfer

ok, we did a lot of little labs today. (don't ask how little, or we will be forced to give you a percent difference in how small each was...) We first used glass bulb thermometers and explained how they work. We then learned how temperature scales work and how any scale can be made and used. We made our own temperature scales and used them to measure different temperatures of water. Next, we learned how to covert between Fahrenheit, Celsius, and Kelvin scales.

Then we took a break and Professor Mason showed us the super-exciting SPS Junk Food Cart and the new, more expensive, Vending Machines outside.

After break we learned how to use the Electronic Thermometers and compared them to the Glass Bulb Thermometers. We then found the percent difference between them(do not say they were close...) Later we talked about Time Delay and what factors can affect the time it takes to change a temperature or reach equilibrium. Next, Professor Mason brought out some secret items from the back, of which he did not say how they were held, whether it be hot, cold, or room temperature. We all held each object, wood, styrofoam, and Metal. We recorded which felt colder and then measured the temperature with a thermometer. Then we talked about why each felt the way it did.

Later we estimated the temperature change when placing objects in fluid, talked about what factors can change what happens, then learned how to write equations to find out what the final or initial temperature was, or what the mass or ratio of the masses are

it went fast for a first day!