Conduction,+convection,+and+radiation+as+they+relate+to+heat.+Part+1

=__**What is Conduction, Convection, and Radiation Relating to Heat?**__= Contributed by: Sullivan M. Date of publication: September 30, 2011

Conduction is the transfer of heat when the objects or substances are connected such as when a pot is on a stove and the source of heat is connected with the thing it is heating.
===Convection is when heat is transferred by an up and down movement. A form of convection is an old light stove that has a fire pit in the bottom and a tubular pipe going up. A hot air balloon is another form of convection. The gas/heat goes up so the hot air balloon goes up.=== ===Radiation is when magnetic waves go through space. The sun is a form of radiation because it brings heat to the earth and the heat travels through space. Another form of radiation is an x-ray machine .=== Modern stove showing conduction ||  ||
 * [[image:smm_conduction,radiation,convection.jpg caption="Light stove showing convection."]] ||^  || [[image:smm_conduction,_convection,_radiation.JPG width="223" height="175" align="right"]]
 * [[image:smm_conduction,radiation,convection.jpg caption="Light stove showing convection."]] ||^  || [[image:smm_conduction,_convection,_radiation.JPG width="223" height="175" align="right"]]
 * [[image:smm_conduction,radiation,convection.jpg caption="Light stove showing convection."]] ||^  || [[image:smm_conduction,_convection,_radiation.JPG width="223" height="175" align="right"]]
 * Light stove showing convection ||^  ||



Sun showing radiation


 * Sources of Heat**

Six sources of heat are burning, the sun, and heat from the earth, electricity, and nuclear weapons. A form of electricity is a hair dryer. Also, friction of a car can cause heat and so can heat from the earth, (geothermal heat), such as heat from a volcano. Remember, fire is not the only source of heat.


 * Interesting Facts**


 * Heat conduction can also be called diffusion
 * Sunlight is a form of radiation; it has to travel through 93 million miles of empty space to bring heat to the earth.
 * Temperature and heat are not the same thing.
 * Count Rumford found out that energy=heat.


 * GLOSSARY**

Conduction: The transfer of heat between substances that are in contact with each other.

Convection: The up and down movement of gasses caused by the transfer of heat.

Radiation: When electromagnetic waves come in contact with each other and make heat.

Heat transfer: The transfer of heat.

Transfer: To remove from one place and to be put into another.

Geothermal: Heat from the earth


 * CITATIONS**

"convection." Encyclopedia Britannica. Encyclopedia Britannica Online School Edition. Encyclopedia Britannica, Inc., 2011. Web. 20 Sept. 2011. .

“heat transfer” Laurie Jarvis and Deb Simpson. Wisc-Online. Web. 20 September, 2011

Lowe, Lindsey, ed. //Introducing Physics Matter, Energy, and Heat.// United States of America: Anne O’Daly. 2010. Print.

“photo of an old brick fireplace” 123RF. 123RF. September 20, 2011. Web. 20, September 2011.