Thermostatics is the branch of physics that deals with the principles of heat and temperature. Synonyms for the word thermostatics include thermodynamics, thermal physics, and heat theory. These terms are often used interchangeably and refer to the study of the movement and transfer of heat, as well as the related phenomena like changes in pressure, volume, and energy. Another synonym that may be used is thermal dynamics, which can be defined as the branch of physics that explores the relationship between temperature, heat, and energy. Regardless of the term used, the underlying principles of thermostatics help us to better understand and control the thermal world around us.