OpenStax
Open Stax: College Physics: Heat
In this section of the textbook, find information about how heat and work transfer energy. Also understand how a heat transfer is related to temperature and what mechanical equivalent of heat relates to work and heat transfer. Book can...
Texas Education Agency
Texas Gateway: Heat and Heat Transfer Methods: Heat
By the end of this section, you will be able to do define heat as a transfer of energy.
University of Waterloo (Canada)
University of Waterloo: James Prescott Joule
Lists the most important scientific contributions of James Prescott Joule. Provides some biographical details. Part of a set of History of Thermodynamics course notes.