Key Words Heat And Temp Flashcards
Conductor
A material that lets heat pass through it
Conduction
Heat transfers in a solid
Insulation
Where heat doesn’t transfer in a solid
Insulator
A material that doesn’t let heat pass through it
Convection
Heat transfer in a fluids
Radiation
Heat transfer in a vacuum. Another name for heat and tracked in infrared waves
Convection current
A current created by heat causing changed in the density of a fluid
Expansion
When particles are heated they expand and vibrate faster
Contraction
When particles are cooled they vibrate slower and contract
Melting point
The temperature when a solid is melted to a liquid
Freezing point
The temperature where a liquid freezes to a solid (same temp as melting point)
Boiling point of water
100 degrees
Freezing point of water
0 degrees
Less dense
More gaps and particles further apart
Heat
Type of energy and is measured in joules
Temperature
How hot or cold something is and measured in degrees Celsius
How a thermometer works
Particles are liquids
As the material gets hotter it gains more energy and particles move more
Mercury in thermometer gets heated and moves up
Vacuum
A place with no particle
Metals are good conductors
Metals have free electrons which collide with other atoms and pass on heat energy
Shiny objects in radiation
They absorb less heat but reflect it so cools down slower
Black objects
Absorb more energy by emit more energy so cools down quicker
