Question

Pressure is expressed as __________ and its SI unit is ________.

• A. $\frac{Force}{Area}$, pascal (Pa)
• B. $\frac{Force}{Length}$, pascal (Pa)
• C. $Force\times Area$, newton (N)
• D. $\frac{Force}{Area}$, newton/metre (N/m)

Answer 1

The correct option is A $\frac{Force}{Area}$, pascal (Pa)

Pressure is defined as force per unit area. The unit of force is newton (N) and the unit of the area is meter square ($m^2$). Therefore the unit of pressure is N/$m^2$, which is called pascal named after Blaise Pascal.