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education/physics/PHYS2210/Chapter 15.md

@@ -9,3 +9,9 @@ A fluid is defined as a matter that flows under the influence of external forces
 
 Fluids cannot maintain a fixed structure, but fit the shape of the container they're confined to.
 
+# Pressure
+
+Pressure is defined as **force *per* unit area*** exerted by a fluid.
+
+$$ p = \frac{F (N)}{A(m^2)} $$
+The SI unit for pressure is called a pascal, and it's $\frac{N}{m^2}$.