It is the ratio pf mass and volume.
The ratio of thee density of a substance of the density of a standard , usually water for a liquid or solid and aur for a gas. The SI unit of relative density is g/ m3
Perhaps you mean "specific gravity". That refers to an object's density, compared to the density of a reference subtance (usually water). For example, if iron has 8 times the density of water, then its specific gravity is said to be 8.
Specific gravity, usually referred to as relative density is the ratio of the mass of a given volume of a substance to the density of a different reference substance. Water is often used as the reference.
No, it's not.Gravity is the force of attraction between objects having mass, where the force on an object is given by the product of the gravitational acceleration and the object's mass. Gravitational acceleration has the units of length per time squared.The density of an object or material is the mass of the object divided by its volume, e.g., water has a density of 1 g per mL. Density has the units of mass per volume.
density is usually in some form of mass per volume. so for example you could say grams per cubic inch or milligrams per cubic centimeter.
density changes when the substance changes.
The density of sandstone ranges quite considerably, usually between 2.0 and 2.6 Kg/m3 (more usually 2.23 to 2.5).
The specific gravity of a substance is the ratio of its density to the density of a reference substance (usually water). Specific gravity is a dimensionless quantity that allows us to compare the density of different substances without units.
g/mL usually
Different oils have different densities; usually a bit less than the density of water.
Yes. The density of a liquid is usually close to that of a solid, and much higher than in a gas.
The unit for density is kg m-3.
Usually, an object can float if it has a lower density than the liquid it is in.
Density is a measure of how much mass is contained in a given volume of a substance, while relative density is the ratio of the density of a substance to the density of a standard substance (usually water). Relative density is a dimensionless quantity used for comparison purposes.
Density usually changes when an object is heated or cooled - especially in the case of gases, or when there is a change of phase.
Usually you would use the basic definition of "density": just divide mass by volume.
Density is usually expressed in some unit of mass, divided by some unit of volume. As a result, the SI unit, of course, is kilogram / cubic meter. In this case, water would have a density of about 1000. In practice, it is often expressed in kilogram per liter, or the equivalent, gram per cubic centimeter, in which case water has a density of approximately 1.