How does the matter of an object affect its floating and sinking?

Question

Does having greater mass necessarily mean it's denser? Please explain. Thanks. Need it ASAP. :)

Answer 1

Density....
if the molecules of an object are densely packed...it will sink. if the molecules or atoms are uniform and not densely packed it will float.... like ice for example...

Answer 2

Density and displacement both play a role. If a material is less dense than the fluid it is in, it will float. Look at Balsa wood in a bowl of water. Cube, ball, whatever, it will always float.

But displacement also plays a roll. If the water displaced by an object has more mass than the object, the object will float. Look at a ship made of steel. Obviously, a cube of solid steel will sink rapidly, but a ship weighing many tons floats. This is because the mass of the water it displaces is greater than the mass of the ship.

And to answer your question regarding the relationship between mass and density, there is none. Mass is dependent on volume, density is determined by the molecular structure of the material. However, if the volume is constant, say 1 cubic foot, than the material with the higher density will have the greater mass.

Answer 3

Floating and sinking is determined by both the density of the water and the object. And density is affected by both the volume and mass since it is derived from mass/volume.
When the density of the water which means the mass of substances in the water divided by the volume is greater than the density of the object, the object will float. However, if the density of the water is lesser than the density of the object, it will sink.
E.g. Dead Sea as very high density due to the high amount of different salts and minerals present, thus people who can't swim won't even drown there since they float

Answer 4

itz shape n also weight............