Warmup 23: Heat Transfer I

Course

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IN:
The first three questions refer to the material you were to read in preparation for the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle. Questions 4 is your opportunity to suggest what we should emphasize today and how.

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button at the bottom of this page.


1.

Ethyl Alcohol has about one-half the specific heat of water. If equal masses of alcohol and water in separate beakers are supplied with the same amount of heat, copare the temperature increases of the two liquids.




2.

Why is a person able to remove a piece of dry aluminum foil from a hot oven with bare fingers, while if there is moisture on the foil, a burn results?



3.

A piece of iron has a temperature of 0o C. If a second identical piece of iron is twice as hot, tell what it's temperature must be and why.




4. Below is a space for your thoughts, including general comments about today's assignment (what seemed impossible, what reading didn't make sense, what we should spend class time on, what was "cool", etc.):




You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button.

I received no help from anyone on this assignment.