Of or pertaining to → astrophysics.
Fr.: jet astrophysique
Fr.: objet astrophysique
Pertaining to the physical sciences, especially physics.
Fr.: adsorption physique
Same as → physisorption.
šimi-ye fiziki (#)
Fr.: chimie physique
The branch of chemistry dealing with the relations between the physical properties of substances and their chemical composition and transformations.
Fr.: condition physique
The state of a → physical system regarding its temperature, density, pressure, etc. at a given time.
pâyâ-ye fiziki (#)
Fr.: constante physique
A fundamental → physical quantity that is generally believed to be both universal in nature and constant in time.
Fr.: dimension physique
Any of basic physical quantities, such as mass, length, time, electric charge, and temperature in terms of which all other kinds of quantity can be expressed.
qânun-e fiziki (#)
Fr.: loi physique
A theoretical principle which is deduced from particular observational facts regarding the behavior of matter. Physical laws are expressed by a general statement that a particular → physical phenomenon always occurs if certain → conditions are present.
halâzân-e fiziki, roxgard-e ~
Fr.: libration physique
A real periodic variation in the rotation rate of a celestial object, as distinct from a → geometrical libration. In particular, slight oscillations in the → Moon's rotation caused by the → gravitational attraction of the Earth on the → equatorial bulge of the Moon's near side. The Moon's physical libration is about 0.03° in longitude and about 0.04° in latitude.
Fr.: optique physique
The branch of optics concerned with the wave properties of light, → diffraction, → polarization, and other phenomena for which the ray approximation of → geometric optics is not valid. Also called → wave optics.
Fr.: paramètre physique
padide-ye fiziki (#)
Fr.: phénomène physique
candâ-ye fiziki (#)
Fr.: quantité physique
A physical → property that can be measured and/or calculated.
Fr.: système physique
A set of physical components chosen to study their relations.