Its Hot!!! Heat flows from Hot to Cold! –Which is the same as saying energy goes from areas of high energy density to areas of low energy density… it spreads.

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Presentation transcript:

Its Hot!!! Heat flows from Hot to Cold! –Which is the same as saying energy goes from areas of high energy density to areas of low energy density… it spreads out!

Temperature The average Kinetic Energy of a substance Everything is wiggling!!!!!

There are 3 kinds of Heat Transfer Conduction Convection Radiation

Convection at work Heating up a fluid causes its density to decrease – it is more bouyant, so it moves up. Cooler material is denser and moves down.

Just like in Kona! The sun heats up the mountain, the air moves upslope – and condenses to form clouds – keeping the coffee plants shaded!

Convection

Conduction Atom to Atom energy transfer – some are better than others at moving energy Bi-Metallic strip demo

Radiation Electromagnetic Radiation Infrared

BoilingMelting CondensationRadiation ConductionSublimation ConvectionPhase EvaporationPhase change FreezingAbsorption Heat of fusionEntropy Heat of vaporization

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