Heat & Temperature Flashcards
Temperature
Measure of the hotness of an object
Thermometric property
A physical property that changes measurably with temperature
Heat Capacity
The heat energy needed to change the temperature substance by 1K
Specific Heat Capacity
The heat energy needed to change 1kg of a substance by one kelvin
Specific Latent heat
the amount of heat energy needed to change the state of 1kg of a substance without a change in temperature
Conduction
The movement of heat energy through a substance by the passing on of molecular vibration from molecule to molecule, without any overall movement
Convection
The transfer of heat through a fluid by means of circulating currents of fluid caused by heat
Radiation
the transfer of heat energy from one place to another in the form of electromagnetic waves
U-value
the amount of heat energy conducted per second through 1m squared of that structure when a temperature difference of 1K is maintained between it’s ends.
Solar Constant
The average amount of the sun’s energy falling per second perpendicularly on 1 metre squared of the Earth’s atmosphere