What is the relationship between density and buoyancy?

Answer 1

The greater the density of the fluid, greater is the buoyancy. For example, when a piece of wood is pushed into different fluids, different forces have to be applied to do so. the denser the fluid, more is the force required to push the body into it. This is the reason that we apply more force to push a body into salt water than onto ordinary water this is because sea water has more density.

Answer 2

The net upward buoyant force exerted on any object partially or completely immersed in a fluid ( in this question water) is equal in magnitude to the weight of the fluid (here water) that the object displaces.

This is known as Archimedes' principle

Mathematically :Fb=mfg (buoyant force)

where Fb is the buoyant force

mf is the mass of the fluid displaced

g is gravitational accelerationWhat Archimedes' principle says in simple words is that when you place an object in a fluid (say water), part of the fluid is moved out of the way and the object takes its place.

This object immersed in the fluid will feel a net upward force equal to the weight of the fluid that it moved out of the way and whose place it took.

The buoyant force exists because the pressure of a fluid increases with depth, so the force near the bottom of the object is greater than that near the top of the object.

Answer 3

The gravity in space is to strong so if u throw something on the ground when it on land it will go down but for space if u throw something it will be floating