Heat Transfer.

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Presentation transcript:

Heat Transfer

Lesson Goals Students will: Explain how heat moves from one place to another including how cooler materials can become warmer and vice versa. Describe how heat moves by conduction, convection and radiation. Give examples of heat transfers that occur in every day situations.

Key Ideas Energy can move from one place, object or system to another. Substances heat or cool as a result of energy transfer. Energy transfers from warmer matter to cooler matter until both reach the same temperature. Heat transfers occur in three ways; by radiation, conduction and convection.

Vocabulary Conduction – the transfer of heat through a material by direct contact. Convection – the transfer of heat in a fluid (gas or liquid) as a result of the movement of the gas or liquid itself. Radiation – the transfer of heat through electromagnetic waves through space. Heat Transfer – the transfer of thermal energy between substances due to a difference in their temperatures.