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Concepts for Heat
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Primary |
Intermediate |
Middle |
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Sun provides heat. Heat is necessary for life. |
Heat can be produced in many
ways, such as burning, rubbing, or mixing one substance with another. Heat is transferred from a source to a reciever. Heat is transferred in predictable ways, flowing from warmer objects to cooler ones, until both reach the same temperature. Heat can be transferred during a chemical, electrical, magnetic, light, mechanical, or nuclear reaction. Objects that give off light usually give off heat. Mechanical energy is usually related to heat through friction. Hot and cold objects will transfer heat energy until they reach equilibrium. Some material conduct energy better than others. Some materials can transfer heat by contact or at a distance |
Heat is almost always a result
of energy transfer. Heat can be transfered by touching of particles (collisions of atoms conduction), or through space (by rays radiation) or currents in a fluid (convection). Heat energy is the disorderly motion of molecules and in radiation. |