Vocabulary
What are particles?
The tiny building blocks that make up matter
Mater comes in what three states?
Solid, liquid, gas
As the temperature of material increases, do particles move faster or slower
Faster
The movement of thermal heat goes from a higher temperature to a lower temperature
True or False
True
The change from a solid to a liquid?
The change from a liquid to a solid?
Melting
Freezing
A material which allows thermal energy to move through quickly
Conductor
Matter that has a definite shape and definite size
Name an example
Solid
What is the increase in the volume of a material due to a temperature increase
Thermal expansion
When the temperatures of materials are the same, the materials are said to be in thermal ____________?
equilibrium
The change of state from a liquid to a gas
Vaporization
The measure of the average kinetic energy of the particles in a material
Temperature
Matter that has a definite size but no definite shape
Name an example
Liquid
When the temperature of a material decreases and cause its volume to decrease this is known as
Thermal contraction
Heat transfers in three different ways, name all three.
Conduction
Radiation
Convection
The change of state from a gas to a liquid
Condensation
A material in which thermal energy travels through slowly
Insulator
Matter that has no definite size or shape
Name an example
Gas
When particles transfer kinetic energy they are also transferring what
Thermal energy
The transfer of thermal energy from one substance to another by direct contact
Conduction
The change of state from a solid to a gas
The movement from a region of higher temperature to a region of lower temperature
Heat
What does change of state mean?
Can you name one of the change of states?
When a state of matter changes to another state
Example: Freezing, Melting, Deposition, Sublimation, Condensation, Evaporation
When is the theory called that explains how particles move?
Double the points if you can describe how the particles move in each state of matter.
Kinetic Molecular Theory
Gas- Move freely, spread apart, collide
Liquid- Some room to move around, attracted to each other
Solid- Bound together, no movement
Convection
The change of state from a gas to a solid
Deposition