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Matter and Energy

Unit 2.1 Vocabulary works

TermDefinition
Boiling point The temperature at which the pressure of the vapor in the liquid is equal to the external pressure acting on the surface of the liquid
Heat of fusion The amount of energy needed to change a substance from a solid to a liquid at it's melting point
Heat of vaporization The amount of energy needed for the liquid at its boiling point to become a gas
Kinetic Theory An explanation of how particles in matter behave
Melting Point The temperature at which a solid begins to turn into a liquid
Plasma Matter consisting of positively and negatively charged particles
Sublimation The change from a solid to a gas without the liquid state
Thermal Expansion An increase in the size of a substance when the temperature is increased
Kinetic Energy Energy of motion. An explanation of how particles in gases behave
Thermal Energy The total energy of the particles in a material. Includes potential and kinetic energy
Potential Energy Energy of position
Created by: user-1484425
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