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25 Cards in this Set
- Front
- Back
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Caloric
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A hypothetically indestructible, highly elastic, self-repellent, all-pervading fluid formerly thought responsible for the production possession and transfer of heat
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Caloric theory of thermal energy
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A theory that defined thermal energy as a substance that flowed from hot bodies into cold bodies
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Calorie
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1000 calories; a kilocalorie (kcal)
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calorie
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The amount of thermal energy required to increase the temperature of 1 g of water 1 degree C
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Conduction
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The flow of thermal energy from an object to another object through contact
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Conductors
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Any substance that will allow the flow of thermal energy; in electricity, a substance that holds its valence electrons loosely, allowing the flow of electricity
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Convection
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The flow of thermal energy from one place to another by the movement of particles
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Convection current
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A mass of moving particles that carries thermal energy
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Degree
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a unit of temperature
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Entropy
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The amount of disorder and randomness in a system; unusable energy
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Heat
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The kinetic energy present within the particles of matter; the transfer of thermal energy
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Heat of fusion
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The amount of thermal energy needed to change a substance from its solid phase to its liquid phase
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Heat of vaporization
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The amount of thermal energy needed to change a substance from a liquid phase to a gaseous phase
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Insulators
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A substance that does not conduct electricity or heat very well
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Kilocalorie
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1000 calories
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Kinetic energy
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The energy of motion
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Kinetic theory of thermal energy
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Identifies thermal energy of an object with the motion of its particles
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Radiation
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The transport of thermal energy without the use of matter
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R-value
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A measurement of the insulating ability of a substance
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Specific heat
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The amount of thermal energy in calories needed to raise the temperature of 1 g of a substance 1 degree C
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Temperature
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The measure of the average kinetic energy in a material
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Thermal energy
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The total energy of the particles in an object related to the motion of the molecules or ions in matter
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Thermal equilibrium
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If an object with a higher temperature comes in contact with a lower temperature object, it will transfer heat to the lower temperature object.
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Thermal expansion
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Increase in the volume of a substance caused by the addition of thermal energy
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Thermodynamics
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The branch of physics that deals with thermal energy
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