States of Matter
Solid, liquid, and gas
What are the three states of matter?
Particles move slower in this state of matter than they do in the other states.
What is a solid?
This source of energy releases heat when two chemicals are combined
What is a chemical source of energy?
How many mechanical heat sources are there?
What is four?
A material that allows heat to pass through it easily
The temperature at which a solid turns into a liquid
What is a melting point?
The addition of ______ results in particles picking up speed and spreading out.
What is heat?
If an electrical current experiences resistance while moving through wires, energy will be produced in the form of heat.
What is an electrical source of heat?
What is friction?
A material that resists or blocks the flow of heat
What is an insulator of heat?
The temperature at which a gas turns into a liquid
What is a condensation point?
Heat is a form of _______
What is energy?
When the energy of movement is turned into heat.
What is a mechanical source of heat?
When two things are hammered or pounded together.
What is percussion?
The transfer of heat or electric current from one substance to another by direct contact
What is conduction?
When a gas turns into a solid
What is sublimation?
When particles move closer together and decrease their speed, because heat has been removed.
What is contraction?
This type of energy is absorbed by molecules, which results in them becoming warmer. However, the surrounding air the energy travelled through does not get warmer (think of how a microwave heats food).
What is radiation?
When molecules are squished closer together to fit in a smaller space
What is compression?
This is how heat is transferred from a fire to warm the surrounding air
What is radiation?
The temperature at which molecules no longer experience any movement
What is absolute zero?
This concept explains why the metal ball in our science demonstration did not fit through the ring after it was heated.
What is expansion?
When heat is produced from atoms fusing together. This is how our sun generates heat.
What is a nuclear source of heat?
The bending, stretching, and crumpling of matter to bounce molecules off of each other.
What is distortion?
The transfer of heat through a liquid caused by particle motion
What is convection?