The Pascal is a derived SI unit that measures what?

The Pascal is a derived SI unit specifically used to measure pressure. Pressure is defined as force per unit area, and the Pascal quantifies this by expressing how much force is applied over a certain area. One Pascal is equivalent to one newton per square meter, highlighting the relationship between force (newtons) and area (square meters).

In various scientific and engineering contexts, pressure plays a critical role—ranging from atmospheric pressure measurements to various applications in hydraulics and pneumatics. Understanding pressure and its units, like the Pascal, is essential for fields that involve fluid mechanics, meteorology, and material sciences, among others.

The other options like temperature, volume, and mass relate to different physical properties and are measured using other units such as Kelvin for temperature, cubic meters for volume, and kilograms for mass. Each of those measurements has its own context and usage, distinct from how pressure is quantified with the Pascal.