Question

In which direction is liquid pressure always directed?

options:-
a. upwards b. downward
c.both (a)and (b) d.all direction ​

Answer 1

The correct answer of this question is option D, all direction.

• The liquid particles are loosely bonded with each other and that's why these molecules can travel in every direction.

• And,we know that the pressure created by a liquid is directed towards the direction of the movement of the liquid molecules.

• Now,we know that the direction of the movement of the liquid molecules is possible in every direction and that's why the pressure of a liquid is also possible in every direction. ( Pascal law also supports this statement)

Answer 2

In downward direction the liquid pressure always directed.

Option: (b)

Explanation:  

• Pressure can be defined as the force exerted per unit of volume. Now the force is due to the weight of the liquid.  

• Now the weight is always directed downwards due to the gravitational pull of the earth. Hence pressure is always directed to the downwards direction.

• However the pressure direction may also be other direction, if the object is moved with an acceleration in any direction.  

• However the most common force on a liquid is the gravitational force, and so the pressure is downward.