Please see @Charles Link's answer (which is correct).Janus said:Buoyancy is caused by a difference between the density of the buoyant object and the medium surrounding it. What happens to the density of helium if you compress it to a higher pressure?
Increased pressure does not have a direct effect on buoyancy. Buoyancy is determined by the difference in density between an object and the fluid it is submerged in.
Increased pressure alone cannot cause an object to sink. However, if the pressure increases while the density of the object remains constant, it could cause the object to sink as the buoyant force decreases.
No, increased pressure does not affect the buoyant force. The buoyant force is determined by the density of the fluid and the volume of the displaced fluid, which are not affected by pressure.
The depth at which an object is submerged does not directly affect buoyancy. However, as depth increases, pressure also increases, which can affect the density of the fluid and the buoyancy of the object.
Increased pressure does not change the weight of an object. Weight is determined by the mass and the force of gravity, which are not affected by pressure. However, if the object is submerged in a fluid with changing pressure, the apparent weight of the object may change due to the buoyant force.