Question

Force acting per unit area is

• A. Acceleration
• B. Pressure
• C. Velocity
• D. None

Answer 1

Answer: (B)

Pressure is defined as force per unit area. The standard unit for pressure is the Pascal, which is a Newton per square meter.

$P=\frac{F}{A}$

For an object sitting on a surface, the force pressing on the surface is the weight of the object, but in different orientations it might have a different area in contact with the surface and therefore exert a different pressure.