How much is 1 Pascal (Pa) equivalent to?

A Pascal (Pa) is defined as a unit of pressure equal to one force of one Newton applied perpendicularly to an area of one square meter. Therefore, it can be expressed as 1 Newton per square meter (N/m²). This clear definition illustrates how pressure relates force and area; to find pressure, you take the force applied and divide it by the area over which that force is distributed.

In this context, the definition encompasses both the physical interpretation and the mathematical relationship that defines the Pascal. The other options do not accurately represent the definition of pressure. Joules per kilogram or cubic meter pertain to energy per unit mass or density, respectively, which are unrelated to the concept of pressure. Thus, the correct understanding of a Pascal being equal to 1 Newton per square meter highlights its role in physics when dealing with forces acting over areas.