Question

19. Which of the following is the property of liquid pressure?

a. Liquid exerts pressure only in downward direction

b. Liquid pressure may be different at the same depth

c. Liquid pressure increases with depth from the surface

d. Liquid pressure increases as we move up towards the surface​

Answer 1

Answer:

Pressure is a scalar quantity defined as force per unit area. Pressure only concerns the force component perpendicular to the surface upon which it acts, thus if the force acts at an angle, the force component along the direction perpendicular to the surface must be used to calculate pressure.

The pressure exerted on a surface by an object increases as the weight of the object increases or the surface area of contact decreases. Alternatively the pressure exerted decreases as the weight of the object decreases or the surface area of contact increases.

Pressure exerted by ideal gases in confined containers is due to the average number of collisions of gas molecules with the container walls per unit time. As such, pressure depends on the amount of gas (in number of molecules), its temperature, and the volume of the container.

Key Terms

ideal gas: Theoretical gas characterized by random motion whose individual molecules do not interact with one another and are chemically inert.

kinetic energy: The energy associated with a moving particle or object having a certain mass.

Answer 2

Explanation:

option C is the right answer ... as the property of a liquid pressure is liquid pressure increases with depth from the surface