Heat = Transfer of energy between objects that are at different temperatures Goes from the HIGHER temp. object to the LOWER temp. object.

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Presentation transcript:

Heat = Transfer of energy between objects that are at different temperatures Goes from the HIGHER temp. object to the LOWER temp. object

substance’s VOLUME increases when TEMPERATURE increases Thermal expansion substance’s VOLUME increases when TEMPERATURE increases

Thermal Equilibrium thermal energy is transferred from one object to the other until they reach the SAME temperature

Conduction transfer of thermal energy by direct contact Kinetic energy is transferred as particles collide Solids, particularly metals, are good heat conductors

Convection the transfer of energy by the motion of heated particles in a liquid or gas Convection currents transfer heat from warmer to cooler parts of a fluid.

Radiation energy transfer by electromagnetic waves Some radiation is absorbed and some is reflected when it strikes a material