Not at all. A small pebble and a giant boulder both sink,
but a small feather and a giant battleship both float.
Buoyancy and pressure determine whether the object floats or sinks.
Whether an object sinks or floats is determined by its density in relation to the density of the fluid it's in. If the object is less dense than the fluid, it will float; if it's more dense, it will sink. The volume of an object alone doesn't affect whether it sinks or floats; it's the relationship between its volume and its overall density that determines its buoyancy.
Density is mass divided by volume. It is important because it is a measure of how tightly packed the mass of an object is. For example, density will tell you whether something floats or sinks.
You can push it under water / under the liquid's surface, and measure the displacement of liquid.
Whether an object floats or sinks is a function of its relative density, to the medium in which it is placed. If the object is less dense, it floats, If it is more dense, it sinks. Density = Mass per unit Volume
Yes, according to Archimedes' principle, when an object floats in a fluid, the weight of the object is equal to the weight of the fluid it displaces. This means that the volume of the displaced water is equal to the volume of the object.
No. A toothpick and a tiny stone both have small mass, but one floats and the other sinks. A passenger ferry and a large boulder both have large mass, but one floats and the other sinks. It's not the mass that determines whether the object will float. It's the ratio of its mass to its volume ... the number known as the object's "density".
The density of the object (mass/volume) compared to the density of the liquid.
To find the volume of something that floats, you can measure the amount of water it displaces when submerged. The volume of water displaced is equal to the volume of the object. This can be calculated by measuring the change in water level before and after submerging the object.
divide the objects mass by its volume.
If you push it down, you can measure the volume of the displaced liquid.
No. The key to whether an object floats or sinks is the average density, i.e., mass divided by volume. Also, whether an object will float or not also strictly depends on the surface volume. A piece of tin foil shaped into a boat will float and the same mass of tin foil shaped into a crumpled up ball will not float.