Conduction is heat that is transferred through when molecules of different temperatures rub or touch each other. Conduction comes in the form of direct heat. When conduction is happening, the hotter atoms start to move faster, making their neighbors hot too. Some materials such as metal are much quicker in heating up then others. Good carriers of heat are called conductors while others are called insulators. An example of when conduction happens is when your hands are touching the handles of a pan when you are cooking food. The heat from the stove goes to the pan, and metal is a good conductor of heat, the heat energy goes through the pan and into your hands! When you are cooking soup or eggs, the heat goes through the pan to the food so the food gets cooked for you to eat. Another example of conduction is when you are holding ice in your hand and it melts after a while. Since your body temperature is hotter than the ice, the faster moving atoms in your hands bump the slower ones in the ice, slowly heating the ice up so it melts.
Thursday, December 3, 2009
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ReplyDeletedigital heat transfers