does buoyancy force exists without gravity?

Answer 1

Nope!
Buoyant force= vdg-vrg , v= vol. of the body immersed, d = density of body, r = density of fluid.
where, g = 0
buoyant force = 0

Answer 2

No. 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 only place that exists without gravity is space in which you are operating in a vacuum (i.e. absent a liquid or gas).

Answer 3

Buoyancy force is equal in magnintude to the mass of the volume of the liquid (Medium) displaced. The buoyance force comes in when we multiply the mass of the displaced medium by the acceleration due to gravity. So no, in that respect. But, however if we were talking of a bobber in a lake, the lake would be subjected to the same gravity as the bobber. So they don't play in in that respect.

Answer 4

Buoyancy, like centrifugal force, really isn't a real force.
It is a handy myth to explain a more complex scenario.

In the centrifugal force case, the force is actually caused
by a body's tendancy to maintain its inertial profile
as something else causes it to change from its intertial
profile - like someone holding onto a rope connected
to a weight and swinging it around their head.

In the case of buoyancy, the object is lighter than the
liquid surrounding it, and the liquid pushes it out of the
way to get closer to the source of gravity...

The force in question is really gravity - so if you get rid
of gravity, then the apparent motion goes away.

Of course, if you get rid of one source of gravity, the
universe is filled with others, and they will all effect
on your solid-in-a-liquid experiment, but only in
relation to their distance and appropriate masses.

Of course, if your experiment is in free fall, then all
of the components are free to fall into their largest
gravity well and should all do it at the same speed
so they won't appear to move in relationship to
each other, at least for density reasons. However,
as soon as you inhibit your experiment from moving,
the heavier liquid will cause the lighter solid to
move away from the predominant source of gravity.

Answer 5

gravity doesnt play a role in the phenomnenon of bouyancy
but without gravity the object and the fluid will just float around
but technically buoyancy does exist without gravity

Answer 6

Yes, they are unrelated to gravity. It can be tested in space lab. but most people who understand them will tell you without blinking an eye.

Strictly a density relationship.

Gravity makes them easy to observe.

Take large clear sphere of radius "R", fill it with water 1/3 way, take a ball 1/4R put the ball inside the sphere and seal the sphere so water cannot come out. Send it out to outer space(no gravity people can float in the space-lab) and notice the relative postions of the water air and the ball. It should be the same as on earth.

Answer 7

I think that you might have something going here. But I'm not sure if the dense ball would give off enough energy though. However, it is possible to create something with a more larger amount of energy. That is a very good thought.

Answer 8

there would be no difference between the fluid pressure under and above the object if there were no gravity (if we define buoyant force as the net upward force resulting from that difference), so no.

Answer 9

Nope, wouldn't think so. Who cares what the density of liquids and things are if they are not attraced to a large body. All float free.

Answer 10

ask nasa...they're up in space all the time.