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7 Cards in this Set
- Front
- Back
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what is the cause of thermal energy |
Net thermal energy is transferred only when there is a difference in temperature . |
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direction of thermal energy transfer |
Thermal energy is always transfered from a region of higher temperature to a region of lower temperature |
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3 types of thermal energy transfer processes |
Conduction,convection,radiation |
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definition of conduction |
Conduction is the transfer of thermal energy through a medium without any flow of the medium |
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definition of convection |
Convection is the transfer of thermal energy through a medium by means of convection currents in a fluid , due to a difference in density |
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definition of radiation |
Radiation is the transfer of thermal energy in the form of electromagnetic waves such as infared radiation , without the aid of a medium |
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working principle of radiation |
All objects and surfaces emit and absorb infrared radiation at the same time |
