Particle Model of Matter
Particles are always doing what?
moving
Heat transfers from _________ to ___________ concentration
high to low
What type of material would be used to absorb the most amount of heat?
black, dull material
The type of heat transfer when you touch a hot stove and burn your hand
conduction
Conduction only takes place in which state of matter?
SOLIDS
The state where particles are the farthest apart.
gas state
The average amount of speed per particle in a substance is know as what?
Temperature
Name all the phase changes
Freezing
Melting
Condensation
Evaporation
Sublimation
Air swirls in your bedroom when the furnace turns on; what type of heat transfer is this showing?
convection.
Convection takes place in these 2 states of matter
liquids and gases
State of matter when particles are closest to each other and are tightly connected.
solid
What temperature does water freeze and melt at?
0 Celcius
This type of material allows transfer of heat easily
a conductor
The movement of magma underneath earths crust shows what type of heat transfer?
convection
Convection currents are formed when? (What is the most important concept that is responsible for them)
Hot air (or liquid) rises
When you add heat to a substance the particles do what?
move faster.
What is the temperature of Absolute Zero in Celsius?
-273.15 Celsius
This type of material does not allow easy transfer of heat
an insulator
You are sitting by the campfire and feel the heat from it; what type of heat transfer is this?
radiation
No ___________ are required for radiation to transfer heat
particles
What happens when you add energy to a solid and it gets enough energy to change to a liquid.
It melts
Heat is measured in what?
Joules
What is the term for energy in a substance going towards a change of state, rather than an increase in temperature?
Latent Heat
The handle on your frying pan is hot to the touch. This is an example of
Conduction
What is the heat source called that is obtained from a man-made dam?