branches of physics by Justjanet

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									                           Some Branches of Physics
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Broadly, physics can be separated into two areas: experimental and
theoretical. Since physics is about the study of the physical universe,
physicists can be doing either experimental or theoretical work in any of a
number of subject areas. Some examples are listed below.

Acoustics: The study of sound, especially of its generation, transmission,
and reception.

Astrophysics: A branch of astronomy concerned with the study of the
physical and chemical properties of material objects and energy sources
situated outside the boundaries of the earth's atmosphere.

Atomic and Molecular Physics: The study of the properties of matter at the
atomic or molecular scale. The study of the structure of atoms and molecules
and the forces that act between positive nuclei and the negative electrons in
orbits around nuclei or the interaction of electrons from one atom with those
from another.

Cosmology: A branch of astronomy focused on the study of the origin,
structure, and evolution in space and time of the physical universe.

Dynamics: A chapter of mechanics dealing with the behavior of material
objects under the action of external forces.

Electricity: The study of the behavior of electric charges and the fields they
create in their surrounding space.

Electrodynamics: The study of the relations between electrical, magnetic,
and mechanical phenomena. The study of the interactions between electric
currents and magnetic fields created by other electric currents.

Field Theory: A classical or quantum mechanical theoretical study of fields,
based on the knowledge of the field equations, or of the commutation rules
satisfied by the field operators.

Fluid Mechanics: The study of the properties and behavior of matter in fluid
(gas or liquid) state.



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Geophysics: The physics of the earth and its environment, including the
physics of fields such as meteorology, oceanography, and seismology.

Hydrostatics / Hydrodynamics: The study of the mechanical behavior of
fluids and of solid bodies immersed in fluids, which are in static equilibrium or
in motion relative to them.

Magnetism: The study of magnetic properties of matter and the fields
created in the surrounding space.

Mechanics: The study of the behavior of physical systems in terms of their
position in space, under the action of external forces which may be equal of
different from zero.

Nuclear Physics: The study of the properties of atomic nuclei. The study of
the structure of atomic nuclei and the forces responsible for the stability or the
disintegration of atomic nuclei.

Optics: The study of light and vision. The study of the phenomena
associated with generation, transmission and detection of electromagnetic
radiation, from the short wave length edge of radio waves (1 mm) to the long
wave length edge of X-ray (1 nm). The study of waves associated with
particles, i.e. electron optics, neutron optics, etc.

Particle Physics (also known as High Energy Physics): The study of the
structure, properties and interactions of elementary particles.

Planetary Physics: The study of the origin, structure, and evolution of planets
and planetary systems..

Plasma Physics: The study of the structure and properties of materials in
plasma phase.

Quantum Electrodynamics (also known as Quantum Theory of Light or
Quantum Theory of Radiation): A quantum theory of electromagnetic
radiation. A quantum theory of the interaction of radiation with electrically
charged particles, in particular with atoms and their constituent electrons.




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Quantum Mechanics: A theory of matter based on the idea that material
particles may be described as waves, and waves may be described as
particles.

Solid State Physics (also known as Condensed Matter Physics): The
study of the structure and properties of materials in solid phase.

Space Physics: The study of planetary and interplanetary magnetized
plasmas. The study of the energy flow from the sun through the solar wind
and into terrestrial and planetary magnetospheres, both induced and intrinsic,
and how this energy is dissipated within these magnetospheres.

Statics: A chapter of mechanics dealing with the equilibrium of external
forces acting on material objects.

Statistical Mechanics: The branch of physics that makes theoretical
predictions about the behavior of macroscopic systems on the basis of
statistical laws governing its component particles .

Surface Physics: The study of the structure of solid surfaces. The study of
physical and chemical processes occurring at the interface between solid
objects and the gas or liquid environments surrounding them.

Thermodynamics: The study of mechanical properties of matter related to
heat energy.




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