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Heat Transfer
In class we have been learning abaout heat transfers.

Here is some things i learned:

Heat is the vibration of molecules in a substance. Three ways molecules vibrate is by conduction, convection, and radiation.

Conduction occurs when heat energy flows from one molecule to another as they collide. Conductive heat can only pass through solids.

Convection is the flow of energy that occurs in a gas or liquid.

Radiation is waves of energy. For example when the sun hits things on earth, it excites the molecules that make them vibrate faster and creates heat.

:)
Article posted November 17, 2008 at 07:35 PM • comment • Reads 34 • Return to Blog List
 
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