What is the term for the movement of heat and smoke from an area of higher pressure to lower pressure?

The term that describes the movement of heat and smoke from an area of higher pressure to lower pressure is known as the flow path. This concept is crucial in understanding how fire behavior and smoke movement work within a structure during a fire incident.

In firefighting, recognizing the flow path allows personnel to predict the direction in which smoke and heat will travel, which is vital for effective firefighting strategies and ensuring the safety of individuals involved. The flow path is influenced by several factors, including ventilation openings and the fire's intensity, which create pressure differentials. By identifying and managing the flow path, firefighters can better control the spread of smoke and heat, improve visibility, and enhance the overall effectiveness of their operations.

While the other options reference aspects related to heat and smoke movement, they do not specifically encapsulate the concept of pressure-driven movement. Understanding flow paths is a fundamental element of fire dynamics that helps firefighters navigate challenging conditions during emergencies.