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'''Physics''' is the branch of [[physical science]] that traditionally deals with [[matter]], [[energy]], [[force]], and [[motion]].  These concepts can be applied to virtually any area of the physical sciences; therefore, physics is often considered to be the most fundamental branch of science.  Indeed, according to [[reductionism|reductionist]] thought, all other branches of science are specialized subdivisions of physics.

'''Physics''' is the branch of [[physical science]] that traditionally deals with [[matter]], [[energy]], [[force]], and [[motion]].  These concepts can be applied to virtually any area of the physical sciences; therefore, physics is often considered to be the most fundamental branch of science.  Indeed, according to [[reductionism|reductionist]] thought, all other branches of science are specialized subdivisions of physics.

== Classical and Modern Physics ==

== Classical and Modern Physics ==

[[Classical physics]] generally encompasses all areas of physics that were well-understood by the end of the 19th century (i.e., before the events that led to the advent of the theory of relativity and quantum mechanics).  It is applicable to problems on an "everyday" scale; that is, situations in which energies are large enough to permit one to neglect quantum effects, but small enough to neglect relativistic effects.  Areas of study within classical physics include

[[Classical physics]] generally encompasses all areas of physics that were well-understood by the end of the 19th century (i.e., before the events that led to the advent of the theory of relativity and quantum mechanics).  It is applicable to problems on an "everyday" scale; that is, situations in which energies are large enough to permit one to neglect quantum effects, but small enough to neglect relativistic effects.  Areas of study within classical physics include