20 terms

Ch 8 Matter and Temperture

states of matter
solid, liguid, gas and plasma
kinetic theory of matter
tiny particles in constant motion make up all matter
particles arranged in repeating geometric patterns
a gaslike mixture
thermal expansion
almost all matter expands when it gets hot and contracts when it cools
polluted water
water that contains high levels of unwanted materials
thermal pollution
excess heat in water
liquid changes to gas
gas changes to liquid
heat of fusion
amount of heat needed to change material from a solid to a liquid
heat of vaporization
amount of heat needed to change material from a liquid to a gas
amount of force excerted per unit area (P=F/A)
Pa is the SI unit of pressure
Boyle's Law
If you decrease volume of gas, the pressure will increase provided there is no temperature change
Charles's Law
The volume of gas increases with increasing temperature provided that the pressure does not change
bouyant force
ability of water to exert an upward force on an object
Archimedes' principle
the bouyant force on an object equals the weight of fluid being displaced by the object
Pascal's principle
pressure applied to a fluid is transmitted evenly throughout
Bernoulli's principle
as velocity of a fluid increases, the pressure decreases
Venturi Effect
fluids will flow faster through narrow spaces