| A | B |
|---|
| polluted water | water that contains such high levels pf unwanted materials that it is unacceptable for drinking or other specifinc purposes |
| thermal pollution | excess heat in water |
| evaporation | when a liquid changes to a gas gradually at teperatures below the boiling point. |
| condensation | takes place when a gas changes to a liquid |
| heat of fusion | the amount of energy neeses to change a material from the solid state to a liquid state |
| heat of vaporization | the amount of energy needed to change a material from a liquid to a gas |
| pressure | the amount of force exerted per unit of area |
| pascal | (Pa) the SI unit of pressure |
| Boyle's Law | The law that states, if you decrease the volume of a container of gas, the pressure of the gas will increase, providing the temperature does not change. |
| Charle's Law | This law states, the volume of a gas increases with increasing temperature, providing the temperature does not change |
| buoyancy | the ability of a fluid --a liquid or gas-- |
| Archimeded' Principle | this principle states, the buoyant on an object in a fluid is equal to the weight of the fluid displaced by the object |
| Pacal's Principle | this principle states, that pressure applied to a fluid is transmitted unchanged throughout the fluid |
| Bernoulli's Principle | this principle states, as the velocity of a fluind increases, the pressure exerted by the decreases |
| Venturi Effect | the reduction in pressure in these spaces is a special case of Bernoulli's Principle |
| Formula: specific heat=thermal energy | Q=m*DeltaT*C |
| Formula: Energy=mass*heat of fusion | E=m*(KJ/kg) |
| Formula: Energy of Boiling Water= mass*vaporation | E=m*v |
| Formula: Pressure=Force/Area | P=F/A |
| states of matter | there are four --solid, lquid, gas, and plasma |
| kinetic theory of matter | the idea that tiny particles in constant motion make up all matter |
| crystals | in most solids, the particles are arranged in repeating geometric patterns |
| plasma | a gaslike mixture of positively and negatively charged particles. |
| thermal expansion | the characteristic that almost all matter expands as it gets hotter and contracts when it cools |
| crystalline | have a definite shape(glass, rock, ice, snowflake) |
| noncrystalline | have no definite shape(clay, wax) |
