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14 Cards in this Set

  • Front
  • Back
The transfer of heat by moving fluids is called ____.
convection
The currents within a liquid caused by heated fluids rising and cooler fluids sinking are known as _______ currents.
convection
Name two examples of convection currents:
1
2
1. heating a room in the winter
2. winds are convection currents
How does sea breezes work?
The land heats faster than the sea, causing the breeze to move from the sea to land.
How does land breezes work?
The sea cools slower than the land, causing the breeze to move from land to sea.
___ is one of the poorest conductors of heat.
air
____ is the transfer of heart through space in the form of electromagnetic waves.
Radiation
___ is much faster than conduction and convection.
Radiation
Why is an important difference of radiation from conduction and convection?
Radiation heat can pass through an object without heating it. Ex: magnifying glass
____ energy is radiant heat that is trapped within a container.
Thermal energy
Radiant heat is absorbed and radiated much more easily by _____-colored objects than by light -colored objects.
dark-colored objects
What is one of the most practical uses of the heat transfer concept?
the Dewar flask (Sir James Dewar)
Hot water heating systems warm a room by ______ currents.
convection
A ___ is a device which radiates heat.
radiator