it is archimedes' principle
visocity
Pascal's principle states that when pressure is applied to an enclosed fluid, it is transmitted undiminished to every part of the fluid. That pressure is also transferred to the walls of the container.
The rising and sinking motion is called convection current.
...the former is too solidified (sedimented politics!) and the latter too fluid; need Grace to put together! P.S. - Wrote on 3.6.07 to bbc.co.uk
One cup. In US measure: 1 quart = 4 cups And 1 cup = 0.25 quart. There are 32 US fluid ounces (2 pints, or 4 cups) in 1 US quart (946.4 ml). There are 40 Imperial fluid ounces (2 pints) in 1 Imperial quart (1,136 ml). Note that there is no 'cup' in the Imperial system, it is best to use pints or half pints, and not 'cups'.
buoyant force
The buoyant force on any object in a fluid ... whether partially or fully submerged ... isequal to the weight of the fluid displaced by the object. That's related to the object'svolume, and has nothing to do with its weight.
Gravity pulls both the fluid and the submerged object downward. The difference between the gravitational attractive forces on the fluid and the submerged object describes the upward (buoyant) force that the fluid exerts on the object.
Buoyant force.The buoyant force is the net upward force exerted by a fluid on a submerged or immersed object.Archimedes' principle states that the buoyant force is equal to the weight of the fluid displaced.An object will float in a fluid if the buoyant force on the object is equal to the object's weight.
Since the object is submerged, we know that the buoyant force is not sufficient to overcome the weight of the object, otherwise it would be floating rather than being submerged. Therefore, the buoyant force is equal to the weight of the displaced water, not the weight of the object itself.
Archimedes Principle states that the buoyant force on a submerged object is equal to the weight of the fluid that is displaced by the object
The net force on the object is upward, so the object accelerates upward in the fluid.
A buoyant force is produced when an object is completely or partially submerged in a fluid at rest .
When the weight of any object surrounded by fluid is greater than the buoyant force on it, it sinks. (The buoyant force is just the weight of the fluid that would be in that space if the submerged object were not there.)
FALSE
I think you mean a buoyant force. When an object is submerged into a liquid, the liquid pushes up on the object with a force equal to the weight of the amount of fluid that is displaced.
The buoyant force on an object submerged in a fluid is caused by the pressure difference between the top and bottom of the object. To overcome the gravitational force, the buoyant force acts in the upward direction. The larger pressure at greater depth pushes upward on the object.