Mechanisms of Heat Transfer recall heat moves from areas of high temperature to low heat transfers can occur by four different mechanisms: a) radiation = emission or absorption of electromagnetic radiation from an object ultimate source of energy driving nearly all life on earth is solar radiation&#151;absorbed by objects on earth (including plant photosynthetic pigments, rocks and soil, your skin, etc.)&#151;warmed up by absorbing solar radiation objects then typically re-radiate this energy as lower quality infrared radiation&#151;this re-radiation can then: escape the earth&#146;s atmosphere into space, cooling the Earth&#151;especially on a clear, cloudless night be again absorbed by substances in the atmosphere&#151;such as water vapor, clouds and carbon dioxide, which act like blankets trapping the heat and heating the Earth&#151;likened to effect of glass in a greenhouse
(Mechanisms of Heat Transfer; recall; heat moves from areas of high temperature to low heat transfers) (s atmosphere into space, cooling the Earth&#151;especially on a clear, cloudless night be again absorbed by substances in the atmosphere&#151;such as water vapor, clouds and carbon dioxide; act; like blankets) (radiation = emission or absorption of electromagnetic radiation from an object ultimate source of energy; driving; nearly all life on earth) (blankets; heating; the Earth&#151) (this re-radiation; can then escape; the earth) (blankets; trapping; the heat)
Mechanisms of Heat Transfer s atmosphere into space, cooling the Earth&#151;especially on a clear, cloudless night be again absorbed by substances in the atmosphere&#151;such as water vapor, clouds and carbon dioxide radiation = emission or absorption of electromagnetic radiation from an object ultimate source of energy blankets this re-radiation blankets
recall act driving heating can then escape trapping
heat moves from areas of high temperature to low heat transfers
like blankets
nearly all life on earth
the Earth&#151
the earth
the heat