What is a buoyancy?

Answer 1

The force , usually in water, that makes things float. Steel ships for example. Steel is much heavier than water, but shape the steel in a bowl shape and it floats because it displaces its own weight in the water.
Even lighter than water things, such as plastic foam, displaces its own weight in water due to buoyancy. It density just happens to be lighter than water because of all the trapped air bubbles in the foam.

Answer 2

In physics, buoyancy is the upward force on an object produced by the surrounding fluid (i.e., a liquid or a gas) in which it is fully or partially immersed, due to the pressure difference of the fluid between the top and bottom of the object. The net upward buoyancy force is equal to the magnitude of the weight of fluid displaced by the body. This force enables the object to float or at least to appear lighter. Buoyancy is important for many vehicles such as boats, ships, balloons, and airships.

Answer 3

Buoyancy is the measure of an objects ability to float against another substance. For example a steel boat will float in water because the buoyant force is smaller then the steel boats cross-sectional area compared to the water its floating on. (Force buoyant of water is 1000 kilograms per meters cubed)

Answer 4

There are several answers to that one...cheerfulness and happiness can be called buoyancy, as well as the ability to float in liquid, air or gas...or the force that makes the object float....it can also mean resilience...like when you get right back up if someone hurts you, etc....

Answer 5

Buoyancy is the ability for an object to float in liquid.

Look it up in the dictionary.

Answer 6

When an object is less dense than it's sorrounding medium, the medium exerts a net pressure on the object, moving it towards the surface, until an equilibrium is reached. A balloon filled with helium is less dense than the air around it, so it will float up, until it gets to a point where the air is thinner and the densities are basically equal.

Hope this is helpful.

Answer 7

bouyancy is an object's ability to 'float' on a substance. Density is one of the main issues, as the object must be less dense as the surrounding substance. You can make thihngs float by making them less dense by shaping them so that they contain lots of empty space, such as a bowl, which is how boats are designed.

Remember: water's density is 1, 1 gram per cubic centimeter.

so basically anything that weighs more than a gram per cm3 will sink.

Answer 8

water displacement

Buoyancy provides an upward force on the object. The magnitude of this force is equal to the weight of the displaced fluid. (Displacement is the term used for the weight of the displaced fluid and, thus, is an equivalent term to buoyancy.)

Answer 9

Look up the Thomas Capano murder along the Jersey Shore it'll tell you all about Bouyancy and why the body floated in the cooler instead of sinking ;)

Answer 10

A force that keeps things afloat in water.