Conduction, Convection & Radiation Flashcards
Name the three ways energy can be transferred by heating.
Conduction, Convection and Radiation
What is the transfer of energy by infrared electromagnetic waves called?
Thermal radiation
What is the transfer of energy by heating solids called?
Conduction
What is the transfer of energy by heating liquids or gases called?
Convection
The bigger the energy difference, the faster…
Energy is transferred
What can thermal radiation also be called?
Infrared radiation
Where is infrared radiation on the electromagnetic spectrum?
Next to visible light
Convection occurs when…
The more energetic particles move from the hotter region to the cooler region.
Why can’t convection happen in solids?
The particles can’t move.
What is thermal conductivity?
How well an object transfers energy by conduction.
How do you reduce convection?
Stop the fluid from moving.
How does insulation work?
Insulating materials create pockets of air that trap heat, warming it all up.
Which is more effective: conduction or convection?
Convection
Where is convection most effective?
Roundish or squarish containers
Convection currents are all about…
Changes in density
