Question

Define buoyant force in detail

Answer 1

Answer:

We often observe that our body feels lighter while taking a swim in the pool. Also, when drawing water from a well, the bucket feels lighter till it is partially or fully immersed in water. Have you ever wondered why this change in weight is felt?

We can say, when immersed in water or any other fluid, the body experiences a force from the downward direction opposite to the direction of the gravitational pull, which is responsible for the decrease in its weight. It can be the reason why a ball of plastic floats in water rather than sinking to the base by its weight. But here too, we observe that some objects such as a plastic bottle float over water, while others such as a needle sink. In this article, we shall learn about the concept of buoyancy and buoyant force which gives a proper explanation of such observations.

What is Buoyancy?

Buoyancy is the force that causes objects to float. It is the force exerted on an object that is partly or wholly immersed in a fluid. Buoyancy is caused by the differences in pressure acting on opposite sides of an object immersed in a static fluid. It is also known as the buoyant force. Buoyancy is the phenomena due to Buoyant Force.

We can define Buoyancy as:

The upward force applied by the fluid on the object or the body when an object is put in or submerged in the fluid.

Unit:

The unit of buoyant force is the Newton (N).

When a body is in water, it displaces some amount of water owing to its weight. The amount of displaced water is computed by the object’s density which relates to volume. The volume of a cricket ball and beach ball can be the same as their different weight their density differs. The steel solid block descends in water but the steel ship does not. Therefore, the quantity of displaced water in the upward direction is elucidated in terms of Buoyant force. Let’s discuss the buoyancy force and its formulation with diverse devices grounded on it.

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Answer 2

Answer:

the upward force exerted by any fluid upon a body placed in it

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