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this flows spontaneously from hot objects to cold objects

heat engine

any device that converts heat into work


a heat pump does work on this so you can keep your veggies cold


the Kelvin scale is used to measure this


a device used to determine the specific heat of a material


the transfer of thermal energy when particles of a fluid move from place to place

specific heat

the amount of heat needed to raise the temperature of one gram of a material by one degree Celsius


the transfer of thermal energy with no overall transfer of matter

thermal energy

the total potential and kinetic energy of all particles in an object


the transfer of energy by waves moving through space


according to the first law of thermodynamics, this is conserved

thermal insulator

a material that conducts thermal energy poorly

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