Heat Note Skeleton

Heat Note Skeleton
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1. How does heat transfer from one location or material to another?
a. ____Convection______
b. ____Conduction______
c. ____Radiation_______

2. Molecules are two or more __atoms_____ that are connected together with bonds. (Hint: think really small)

3. Does everything in nature have heat energy? ____yes__ What causes heat energy? (Hint: It involves molecules.) _________the movement of molecules________
4. How is temperature different from heat? Heat is a form of energy, but temperature is a measure of the ability of a system to transfer, or gain heat. There are three temperature scales that in general use today:

The Fahrenheit(F) scale is used in the United States and some English speaking countries. It is no longer in scientific use.
The Celsius(C) scale is used in virtually every country and is also widely used in science.
The Kelvin(k) scale is an absolute temperature scale based on the Celsius scale and is the international standard for scientific temperature measurement.

5. What are the 3 scales used to report temperature? ___Kelvin, Fahrenheit, Celsius (there are also the Rankine and Reaumur which are very rarely used)_______

6. Define Absolute Zero. ____the lowest temperature that can be theoretically obtained; all molecular movement stops; 0 degrees Kelvin________

7. Can an object at 0 degrees Celsius have more heat energy than a different object at 100 degrees Celsius? __yes___ Explain. _The mass of an object affects it's heat energy. If the "colder" object has a great deal more mass, it is possible; e.g., a large ice block has more heat energy than a match_

8. Fill in the chart below.

Term	Define	Draw/List an example
Convection	A process for transferring heat from one part of a liquid or gas to another. Warm air/liquid rises and cool air/liquid falls.	a flame, most house heating systems
Conduction	A process for transferring heat from one part of a solid to another.	metal spoon in a hot drink, handle of a metal pot on the stove
Radiation	A process for transferring heat through space.	the sun
Insulation	A material which prevents or reduces heat transfer.	gloves, a coat, Styrofoam

9. Why/How does a thermos keep a drink warm? _there is a vacuum space between the outer and inner container that prevents conduction_____

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