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Vocabulary flashcards covering key terms from 5.2 Thermal Energy and Temperature.
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Kinetic theory of matter
A theory that states that all of the particles that make up matter are constantly in motion.
Temperature
A measure of how hot (or cold) something is; specifically, a measure of the average kinetic energy of the particles in an object.
Thermal energy
The kinetic energy of a substance's atoms.
Degree
The units of a temperature scale.
Thermometer
An instrument that measures and indicates temperature.