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BJU PhysicalWorld 16 Word Scramble

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Question	Answer
caloric theory	A theory that defined thermal energy as an substance that flowed from hot bodies into cold bodies.
calorie (cal)	The amount of thermal energy required to increase the temperature of 1g of water 1 degree C
conduction	The flow of thermal energy from an object to another object through contact.
conductors	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.
convection	The flow of thermal energy from one place to another by the movement of particles.
convection current	A mass of moving particles that carries thermal energy.
entropy	The amount of disorder and randomness in a system, unusable energy.
heat	The kinetic energy present within the particles of matter; the transfer of thermal energy.
heat of fusion	The amount of thermal energy needed to change a substance from its solid phase to its liquid phase.
heat of vaporization	The amount of thermal energy needed to change a substance from its liquid phase to its gaseous phase.
insulators	A substance that does not conduct electricity or heat very well.
kilocalorie (kcal)	1000 calories
kinetic theory of thermal energy	Identifies the thermal energy of an object with the motion of its particles.
R-value	A measurement of the insulating ability of a substance.
radiation	The transportation of thermal energy without the use of matter.
specific heat	The amount of thermal energy needed to raise the temperature of 1g of a substance 10 C.
temperature	The measure of the average kinetic energy in a material.
thermal equilibrium	When the average kinetic energy of the particles of two objects are at the same temperature and conduction stops.
thermal expansion	An increase in the volume of a substance caused by the addition of thermal energy.
thermodynamics	The branch of physics that deals with thermal energy.