Thrust And Pressure

Question 1

What are the factors on which liquid pressure depends?

Answer 1

(1) Increases with depth

(2) Increases with density

Question 2

State Pascal’s Law.

Answer 2

Pressure exerted in any confined mass of fluid is transmitted undiminished in all directions.

Question 3

What is buoyancy?

Answer 3

The tendency of liquids to exert upward force on objects immersed in it called buoyancy.

Question 4

What are the factors affecting buoyant force(U)?

Answer 4

(1) Volume of the object immersed in the liquid (V)
(2) Density (D)
(3) Acceleration due to gravity (g)

U = VDg

Question 5

State Archimedes’ Principle.

Answer 5

When a body is completely or partially immersed in a fluid, the weight of the fluid displaced by it is equal to the upthrust exerted by the fluid on the object.

Question 6

What is the physical of relative density?

Answer 6

RD gives us the heaviness of a substance in comparison to equal volume of water.