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12 terms

Solids, Liquids, And Gases

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Boiling Point
The temperature at which the pressure of the vapor in the liquid is equal to the external pressure acting in on the surface of the liquid
Buoyancy
ability of a fluid- a liquid or a gas- to exert an upward force on an object immersed in the fluid
Diffusion
spreading of particles throughout a given volume until they are uniformly distributed
Heat of Vaporization
the amount of energy required for the liquid at its boiling point to become a gas
Kinetic Theory
explanation of the behavior of molecules in matter states that all matter is made of constantly moving particles that collide without losing energy
Melting Point
temperature at which a solid begins to liquefy
Pascal
SI unit of pressure
Plasma
matter consisting of positively and negatively charged particles
Pressure
amount of force exerted per unit ares; SI unit is the pascal (Pa)
Thermal Expansion
increase in the size of a substance when the temperature is increased
Viscosity
a fluid's resistance to flow
Heat of Fusion
amount of energy required to change a substance from the solid phase of liquid phase