Question

A fluid exert pressure

• A. only downwards
• B. only upwards
• C. in all directions
• D. Fluids do not exert pressure

Answer 1

Answer: (C)

in all directions

A fluid is a substance that has no fixed shape and yields easily to external pressure; a gas or a liquid.

Pressure is exerted by fluids because of their weight. Static fluid pressure is exerted by the depth of the fluid, the density of the fluid and the acceleration of gravity. They exert pressure in all directions, which is given by $F=PA$

where $P$ is the pressure, and $A$ is the area on which force acts.