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5 : the transfer of heat between two parts of a stationary system, caused by a temperature difference between the parts.
6 : the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
7 : the transfer of internal energy in the form of electromagnetic waves. For most bodies on the Earth, this
radiation lies in the infrared region of the electromagnetic spectrum.
The 8 of how much heat is needed to cause some 9 for a material is the
10 of the material. If the particles in the material are 11 to move, then more energy is needed to make them move 12 , so a 13 will cause a 14 change in temperature.
A different particle that is 15 to move will need 16 heat for the 17 in temperature.
Specific heat capacities can be looked up in a table, like this one.
Unless some work is done, heat moves only from 18 things to 19 things.
Heat can be measured. One of the 20 of measurement for heat is the 21 .