# Physical Property

A physical property is any property that is measurable whose value describes a physical system's state. The changes in the physical properties of a system can be used to describe its transformations (or evolutions between its momentary states).

Physical properties can be intensive or extensive. An intensive property does not depend on the size or amount of matter in the object, while an extensive property does. In addition to extensiveness, properties can also be either isotropic if their values do not depend on the direction of observation or anisotropic otherwise. Physical properties are referred to as observables. They are not modal properties.

Often, it is difficult to determine whether a given property is physical or not. Color, for example, can be "seen"; however, what we perceive as color is really an interpretation of the reflective properties of a surface. In this sense, many ostensibly physical properties are termed as supervenient. A supervenient property is one which is actual (for dependence on the reflective properties of a surface is not simply imagined), but is secondary to some underlying reality. This is similar to the way in which objects are supervenient on atomic structure. A "cup" might have the physical properties of mass, shape, color, temperature, etc., but these properties are supervenient on the underlying atomic structure, which may in turn be supervenient on an underlying quantum structure.

Physical properties are contrasted with chemical properties which determine the way a material behaves in a chemical reaction.

Physical properties- Properties that do not change the chemical nature of matter.

Read more about Physical PropertyList of Properties, Distinction From Perceptions

### Other articles related to "physical property, property, physical":

Temperature Coefficient
... The temperature coefficient is the relative change of a physical property when the temperature is changed by 1 Kelvin ... In the following formula, let R be the physical property to be measured and T be the temperature at which the property is measured ... Given these definitions, the physical property is Here α has the dimensions of an inverse temperature (1/K or K−1) ...
Non-aggression Principle - Definitional Issues - Intellectual Property Rights
... as applicable to any unauthorized actions towards a person’s physical property ... Supporters of NAP disagree on whether it should apply to intellectual property (IP) as well ... The argument reflects an analysis of the fundamental reason behind property rights, scarcity ...
The Modern Corporation And Private Property (book) - Book I, Property in Flux - IV The Dispersion of Stock Ownership
... They draw a distinction between "passive" property, or that which merely sits idle or is consumed, and "productive" property, which is actually employed to create more wealth ... They say, “over the enterprise and over the physical property - the instruments of production - in which he has an interest, the owner has little control ... bears no responsibility with respect to the enterprise or its physical property ...
Physical Property - Distinction From Perceptions
... often described (or even "measured") as if they are intensive or extensive physical properties, but in fact perceptions are fundamentally different from physical properties ... For example, the colour of a solution is not a physical property ... of permanganate solution of a given concentration has physical properties related to the colour the optical absorption spectrum is an extensive property ...

### Famous quotes containing the words property and/or physical:

It is as if being was to be observed,
As if, among the possible purposes
Of what one sees, the purpose that comes first,
The surface, is the purpose to be seen,
The property of the moon, what it evokes.
Wallace Stevens (1879–1955)

Dying is something we human beings do continuously, not just at the end of our physical lives on this earth.
Elisabeth Kübler-Ross (b. 1926)