Which one of the following physical quantity has the same unit as that of pressure ?

Pressure is defined as the force acting perpendicularly per unit area, with the SI unit being the pascal (Pa), which is equivalent to one newton per square metre (N/m²) [2]. Stress is defined similarly as the internal restoring force per unit area and shares the exact same SI unit, the pascal (Pa). In contrast, angular momentum is measured in kilogram metre squared per second (kg·m²/s) [1]. Work is defined as force multiplied by displacement, resulting in the unit joule (J) or newton-metre (N·m). Strain is a dimensionless quantity representing the ratio of change in dimension to the original dimension, and thus it has no units. Therefore, among the given options, only stress has the same unit as pressure.

Sources

1. [1] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 6: Pressure, Winds, Storms, and Cyclones > A step further > p. 87
2. [2] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 6: Pressure, Winds, Storms, and Cyclones > 6.1 Pressure > p. 82