Buoyancy

Summary

densities B > Wobject B = Wobject B < Wobject
ρobject < ρfluid object rises
(wholly immersed )
float on surface
(partly immersed)
 
ρobject = ρfluid   neutral buoyancy
(wholly immersed)
 
ρobject > ρfluid     object sinks
Buoyancy and Density