heat flow

Heat flow refers to the movement of thermal energy from one object or area to another, usually from a warmer place to a cooler one. This transfer occurs through three main methods: conduction (direct contact), convection (fluid motion like air or water), and radiation (energy transfer through electromagnetic waves). For instance, when you touch a hot surface, heat flows through conduction. Understanding heat flow is essential in everyday life, influencing everything from weather patterns to how buildings are designed for comfort and energy efficiency.