Summary
This section of the textbook introduces the fundamentals of fluid mechanics by exploring how fluids behave both at rest and in motion. Key principles such as Pascal’s principle, the continuity equation, and Bernoulli’s equation are used to explain how pressure, velocity, and elevation interact in fluids. The roles of viscosity and surface tension are also examined, highlighting their importance in practical scenarios ranging from hydraulic systems to biological flows and natural phenomena like buoyancy. Mastery of these concepts is essential for understanding both everyday occurrences and advanced engineering applications.