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Physical Science
Question | Answer |
---|---|
Describe gases using the terms volume and shape | Gas is the state of matter in which a material has neither a definite shape nor volume |
Describe liquids using the terms volume and shape | Liquid is the state of matter in which a material has a definite volume but not a definite shape |
Describe solids using the terms volume and shape | Solid is the state of matter in which materials have a definite shape and volume |
Which substance (gas, liquid, or solid has the greatest attraction between particles? | Solid substances have the greatest attraction between particles |
Which substance (gas, liquid, or solid has the least attraction between particles? | Gas substances have the least attraction between particles |
What is a force is distributed over an area called? | Pressure |
Collisions between gas particles with walls of a closed container causes what? | Gas Pressure |
Raising the temperature of a gas will ___(1)___ the pressure if ___(2)___ stays the same. | Increase |
Raising the temperature of a gas will ___(1)___ the pressure if ___(2)___ stays the same. | Number of particles |
In a container, if the temperature and volume stay the same,___(1)___ will increase if the number of particles increases. | Gas Pressure |
Define Charles' Law | States that the volume of gas is directly proportional to its temperature in kelvins if the pressure and the number of particles are constant |
Define Boyle's Law | States that the volume of a gas is inversely proportional to its pressure if the temperature and the number of particles are constant |
What is the reverse of sublimation? | Deposition |
What is the reverse of vaporization? | Condensation |
What is the reverse of melting? | Freezing |
Define the heat of fusion | Amount of energy needed for a solid to melt |
What phase change causes water molecules to become more orderly? | Freezing |
What phase change causes water molecules to become less orderly? | Melting |
What state of matter exists at extremely low temperatures? | Bose-Einstein condensates |
Define the Kinetic Theory of matter | Says that all particles of matter are in constant motion |
The motion of one particle of a gas is unaffected by the motion of other particles of the gas unless the particles do what? | Collide |
Using Charles' Law the temperature has to be expresses in? | Kelvins(C=273=K) |
Why does the air pressure in a car's tires increase after a long drive? | The temperature in the tires increases so there is more collisions of particles |
What is the SI unit for pressure? | Pascal |