IMathAS-libretexts

A student has three objects of different shapes, as shown, and wants to compare their densities using liquids of known density. Which of the following experimental methods will allow the comparison to be made?

Let each object float in the same liquid, and compare the heights of the parts of each object that are below the liquid surface.
Let each object float in the same liquid, and compare the fractions of the objects' volumes that are below the liquid surface.
Hang each object from a scale, submerge each object in the same liquid, and compare the readings on the scales.
Hang each object from a scale, submerge each object in the same liquid, and compare the change in readings on the scales.

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