States
This state of matter is relatively easy to compress into a smaller volume
Gas
Change of state from a solid to a liquid
Melting
______is the force acting on a unit area of a surface.
Pressure
__________is a measure of the average kinetic energy of the particles in a material.
Temperature
The state of matter that has a definite shape and definite volume
Solid
Which state of matter contains particles that vibrate in a fixed position?
Solid
This is the change of state from a gas to a liquid:
Condensation
The temperature of a liquid when it begins to form a crystal lattice and becomes a solid is called its ________________ .
Freezing Point
What is the SI unit of temperature?
Kelvin
As you climb up a mountain, atmospheric pressure decreases. Why?
There are less particles of gas above you, exerting less force on you
Which state of matter has a definite volume but an indefinite shape?
Liquid
This is the change of a substance from a liquid to a gas:
Evaporation
The energy released as 1 kg of a substance solidifies at its freezing point
Heat of fusion
When pressure on a liquid increases, its boiling point will ____
increase
Which is the process by which particles of matter fill a space because of random motion?
Diffusion
Provide an example of an amorphous solid
Peanut butter, cotton candy, candle wax
This is when a substance in gas form changes states to become a solid:
Deposition
The pressure of a substance in equilibrium with its liquid is called
Vapor pressure
Kinetic energy of a particle depends on these two things
Mass and speed
Gases expand and contract in response to ______________ much more readily than either solids or liquids.
Temperature
What is the most common form of matter in the universe?
Plasma
The change of state in which a solid changes directly into a gas:
Sublimation
The energy absorbed when 1 kg of a liquid vaporizes at its normal boiling point is called its
Heat of Vaporization
_____ is the temperature below which a substance would have zero kinetic energy.
Absolute Zero
What three factors affect the rate of evaporation?
Surface Area, Temperature and Humidity