What is Meant by the Term Buoyancy? - Physics

What is meant by the term buoyancy?

One Line Answer

The property of a liquid to exert an upward force on a body immersed in it is called buoyancy.

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Chapter 5: Upthrust in Fluids, Archimedes’ Principle and Floatation - Exercise 5 (A) [Page 109]

Chapter 5 Upthrust in Fluids, Archimedes’ Principle and Floatation
Exercise 5 (A) | Q 3 | Page 109

The density of aluminium is 2.7 g cm-3 and that of brass 8.4 g cm’3. The correct statement is

Explain the meaning of the statement

‘Relative density of aluminium is 2.7’.

For a floating body, how is its weight related to the buoyant force?

How does the pressure exerted by thrust depend on the area of surface on which it acts? Explain with a suitable example.

The pressure P₁ at the top of a dam and P₂at a depth h form the top inside water (density p) are related as :

Define upthrust and state its S.I. unit.

Write the SI units of Buoyant force

How is thrust different from pressure?

The point at which the force of buoyancy is supposed to act is known as ______.

Salt water provides less buoyant force than freshwater.