Heat energy, abbreviated as Q, also called thermal energy, is the exertion of power that is created by heat, or the increase in temperature by the transfer of particles bouncing into each other by means of kinetic energy. Heat energy is a form of energy that is transferred from one body or system to another as a result of a temperature difference. It is the energy that is responsible for causing a change in the temperature of a substance, and it can be transferred through conduction, convection, or radiation. The amount of heat energy that is required to raise the temperature of a substance depends on its specific heat capacity, which is a measure of how much energy is required to raise the temperature of a given mass of a substance by a certain amount.
Heat energy plays an important role in many natural and industrial processes. It is responsible for driving weather patterns, such as convection currents in the atmosphere that lead to the formation of storms and winds. In industry, heat energy is used to generate electricity, power engines, and manufacture products. In the human body, heat energy is used to maintain body temperature and support metabolic processes.
Heat energy can also have positive or negative effects on the environment and living organisms, depending on the intensity and duration of exposure. For example, excessive heat can cause dehydration, heat stroke, and other health problems in humans and animals, while prolonged exposure to cold temperatures can cause hypothermia and frostbite.