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Matter & Energy Ch 4

Vocabulary from Ch. 4: Temperature and Heat

QuestionAnswer
kinetic theory of matter states that all of the particles that make up matter are constantly in motion.
temperature a measure of the average kinetic energy of all the particles in an object.
degrees units used to measure temperature, equally spaced units between two points.
thermometer a device that measures temperature through the regular variation of some physical property of the material inside.
heat a flow of energy from an object at a warmer temperature to an object at a cooler temperature.
thermal energy the total random kinetic energy of particles in an object.
calorie the amount of energy needed to raise the temperature of 1 gram of water by 1 degree Celsius.
joule the standard scientific unit in which energy is measured.
specific heat the amount of energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius.
conduction the process that moves energy from one object to another when they are touching physically.
conductors materials that transfer energy easily.
insulators materials that are poor conductors, and often have high specific heats.
convection the process that transfers energy by the movement of large numbers of particles in the same direction within a liquid or gas.
radiation energy that travels as electromagnetic waves, which include visible light, microwaves, and infrared light.
Created by: misskazantzis
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