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PS TNOM Chapter 2

States of Matter

TermDefinition
Matter Anything that has mass and volume (takes up space)
Solid Matter with definite shape and volume
Amorphous Solid Any solid lacking definite crystalline shape
Cohesion The sticking together of like particles due to inter-molecular forces
Surface Tension The tendency of some liquids to stick together and resist pushing or pulling apart at the surface
Liquid Matter with definite volume but indefinite shape
Viscosity Resistance to flowing
Gas Matter with indefinite shape and indefinite volume
Melting Phase change from a solid to a liquid
Specific Heat Capacity The amount of thermal energy required to change the temperature of one gram of substance by one degree Celsius
Temperature A measure of the average translational kinetic energy of particles in a substance
Heat The movement of thermal energy from one substance to another
Freezing Phase change from a liquid to a solid
Vaporization Phase change from a liquid to a gas
Condensation Phase change from a gas to a liquid
Sublimation Phase change from a solid directly into a gas
Deposition Phase change from a gas directly into a solid
Pressure The force exerted by an object divided by the area over which it is exerted.
Force A push or a pull
Bernoulli's Principle In fluid dynamics, the principle that states that when the speed of a fluid increases, the pressure it exerts decreases
Buoyant Force An upward force exerted by a fluid that opposes the weight of an immersed object
Archimede's Principle Principle that states that the buoyant force on an object is equal to the weight of fluid displaced by the object
Pascal's Principle Principle that states that when a force is applied to a confined fluid, the change in pressure that results is exerted equally throughout the fluid
Density Mass of a substance divided by its volume. The ratio of mass to volume for any substance.
Created by: MrGross