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Unit 05 26-27

Thermal Energy

TermDefinition
thermal energy The energy of a substance's particles due to their motion and interactions.
temperature A measure of the average kinetic energy of particles in a substance.
heat (heat transfer) The transfer of thermal energy from one object or place to another because of a temperature difference.
kinetic energy The energy of motion.
conduction Transfer of thermal energy through direct contact between particles or objects.
convection Transfer of thermal energy by the movement of a liquid or gas caused by temperature and density differences.
radiation Transfer of thermal energy by electromagnetic waves that can travel through empty space.
thermal equilibrium When objects have the same temperature and there is no net transfer of thermal energy.
particles Tiny pieces of matter.
conductor A material that transfers thermal energy easily.
insulator A material that slows the transfer of thermal energy.
convection current The movement of a liquid or gas caused by temperature and density differences.
infrared radiation Electromagnetic radiation emitted by objects. Thermal cameras detect it to display apparent surface temperatures.
system The object or group of objects being studied.
Created by: LMS 7 Sci
 

 



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