Refraction
Because of bending of any wave, such as a light or sound wave, when it passes from one medium into another of different optical density.
Whether a substance will float or sink in another substance.
The relative density of a substance is defined as the ratio of density of any substance to the density of water at 4 degree celcius.Formula=Density of any substance/Density of water at 4 degree celcius.
Mass
Relative density is determined by the ratio of the density of a substance to the density of a reference substance.
Refraction ( the bending of light as it passes from a one transparent material to another with a different density)
Because of bending of any wave, such as a light or sound wave, when it passes from one medium into another of different optical density.
Pure gold has a specific density like all other substances.If an another substance was mixed with gold the density may fluctuate.Refer to Archimedes
It floats.
no
Whether a substance will float or sink in another substance.
It means how much a standard volume of a substance weighs - or more precisely, how much mass it has. If a liter of one substance has more mass than a liter of another substance, the first substance is said to have greater density. Density is defined as mass divided by volume.
Mass and volume
water is the only substance on earth where its density is HIGHER when liquid, and LOWER when solid. a substance will float on top of another if its density is lower than the other substance. so because the ice has a LOWER density it will float on top of the water
If two different people use two different methods to calculate the density of a sample of the same substance, and they get two different answers, then at least one of them made a mistake. If the method of calculation makes a difference, then the whole concept of density is out the window. The only possible difference between two statements of the density of a substance should be the units in which the density is stated. But one unit can always be converted to the other, and when they're both in the same units, they had better both be the same number.
It seems that the phrase you are looking for is "physical property". Density depends on several factors, such as: is the substance a solid, liquid or gas (the same substance will have vastly different densities at different states, but density is still a physical property of that substance); what temperature is it being measured at (most substances expand and become slightly less dense when heated); among others.
The relative density of a substance is defined as the ratio of density of any substance to the density of water at 4 degree celcius.Formula=Density of any substance/Density of water at 4 degree celcius.