The transfer of heat through the movement of a fluid is called?

The transfer of heat through the movement of a fluid is known as convection. This process occurs when warmer fluid rises due to its lower density, while cooler fluid sinks, creating a circulation pattern that effectively transfers heat. Convection is commonly observed in various natural phenomena, such as the warming of air in the atmosphere or the boiling of water in a pot.

In contrast, conduction refers to the transfer of heat through direct contact between materials, where heat flows from a hotter object to a cooler one without any overall movement of the material itself. Similarly, radiation involves the emission of energy in the form of electromagnetic waves, which can transfer heat across a vacuum, such as sunlight warming the Earth. Flux, while related to the flow of energy, does not specifically define the heat transfer method associated with fluid movement. Therefore, convection is the correct term for the heat transfer through fluid motion.