Question

What are some examples of buoyant force?

Answer 1

Hint: In order to solve this question we will first know about what is buoyant force and then learn it with few examples. Buoyancy was discovered by Greek mathematician Archimedes in around 250 BC, and hence it is also known as Archimedes, principle.

Complete answer:
When an object is immersed in a fluid, whole or partial, the fluid exerts an upward force opposite its weight. This phenomenon is known as buoyancy, and the upward force is known as the buoyant force. A characteristic of buoyancy is that it determines whether an object will be floating or sinking.

According to Archimedes’ principle, when an object is immersed in a fluid, partially or whole, it displaces the fluid. The weight lost by the object is equal to the weight of equivalent volume of the displaced fluid. Here are some examples of the buoyant force in day to day life.

Boat sailing on the river, Iceberg floating on water, A person with a life vest floating on water, Ship floating on the ocean, Helium balloon rising in the air, etc. The buoyant force is proportional to the density. The factors that affect buoyancy are:
-The density of the fluid.
-The volume of the fluid which is displaced.
-Acceleration due to gravity.

Note: The buoyant force is responsible for objects to float. The point on the object where buoyancy is applied is called the center of buoyancy. Below are some real-life applications of buoyancy. To measure the volume and density of substance, To measure the relative densities of liquids, To control the position and depth of a submarine, etc.