Definition: An object immersed in a liquid (or gas) is vertically supported by the liquid (or gas).

Cause: The object immersed in liquid (or gas) is subjected to different upward and downward pressures of liquid (or gas) and the buoyancy of the object due to the difference between these two pressures.

F Floating =F Up-Down (Differential Pressure Method)

Dimension measurement: f float =G-F (experimental weighing method)

Where g represents the gravity of the object and f represents the pointer of the spring tensiometer after the object is immersed in liquid.

Buoyancy direction: always vertical upward.

Buoyancy is the supporting force of liquid to an object immersed in liquid.

Whether an object immersed in a liquid is affected by buoyancy depends on whether the object is affected by the pressure difference between the upper and lower parts of the liquid. If the bottom of the cylinder is completely bonded to the bottom of the container, it is not affected by the upward pressure of the liquid, so the liquid does not exert buoyancy on it.

The point of buoyancy action can generally be drawn on the center of gravity of an object.

Archimedes'principle

The buoyancy of an object immersed in a liquid is equal to the gravity it receives when it displaces the liquid.

Expression: F float =G row (principle formula method) or? F float =m line = liquid gV line.

This principle also applies to gases, where P gas is the density of the liquid immersed in it.

According to Archimedes principle, buoyancy only depends on the density of the liquid and the volume of the displaced liquid, and has nothing to do with the density, shape and immersion depth of the submerged object.

I can only offer so much. I hope it works for you.