The density of matter is expressed in the form mass per unit of volume (mass per unit volume).
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The density of an object describes how tightly packed its matter is. It is calculated as an object's mass divided by its volume. A high density indicates closely packed matter, while a low density indicates less tightly packed matter.
Density.
Density
Density is considered an intrinsic property of matter because it is dependent only on the composition of the material and not on the sample size or shape. This means that no matter what the size or shape of the object is, its density will remain constant as long as the composition does not change.
The units of probability density are typically expressed as the reciprocal of the units of the variable being measured. For example, if the variable is measured in meters, the units of probability density would be expressed as 1/meters.