What is the definition of buoyant force?

Answer 1

Hi Imbaai!

Buoyant force is an upward force exerted by a fluid, which opposes the weight of an object in the fluid. Objects immersed in water observes a loss in weight due to buoyant force.

Hope it is clear!

Cheers!!

Answer 2

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Answer 3

The average density of a given body is less than the density of water (or salt water) in which the body is immersed. Gravity pulls down on the water around the body more than it pulls down on the body, so the body is sort of squirted up like a tomato seed between your fingers.

Answer 4

The weight of an object has no effect on the buoyant force; however the density does. Simply put, if a material is denser (heavier for the same volume) than water, it will sink. If less dense, it will float.

Obviously a steel ship floats - because it's effective total density is a combination of air and steel, making it - in total - lighter than water.

Following Archimedes principle, a floating object displaces the same weight in water as it weighs itself.

For any floating object, the amount of water displaced will be the same as the volume of the part of the object that is under water.

Answer 5

Buoyant force is the force that makes you float in the water. Our bodies have natural buoyant force, and so we float. Wet and some dry suits have buoyant force, so we would need weights to offset the buoyant force. This is why you need to inflate your BC before you dive. When I got certified, I learned that buoyant force allows you to go up faster.

Answer 6

The buoyancy force is a net force and is the result of the water exerting pressure on the object. Pressure is force per unit area.

Go to the other great Wikianswer in the Related Questions section below for a full understanding.

Answer 7

The buoyant force is created when you first put the object in water, and of course the object moves water out of its way to reach the bottom. However, the amount of water it would push away at the time is how much the buoyant force is. e.g: drop a shape with a volume of 6cm in water. That means there would be 6cm of water to fight back the shape.

That is how the buoyant force is created.

Answer 8

The principle that the net fluid force on a body submerged (or floating) in a stationary fluid is an upward force equal to the weight of the fluid displaced by the body

Answer 9

The buoyant force always pushes up on an object - if the object weighs more than the water it displaces, the buoyant force will not be sufficient to make it float or be neutrally buoyant.