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Physics (from the Greek, φύσις (phúsis), "nature" and φυσικός (phusikós), "natural"), the most fundamental physical science, is concerned with the basic principles of the Universe. Consequently, physics deals empirically with the dynamics of matter in the cosmos.

Introduction


Discoveries in physics find applications throughout the other natural sciences as they regard the fundamental constituents of the natural world. Some of the phenomena studied in physics, such as the phenomenon of conservation of energy, are common to all material systems. These are often referred to as laws of physics. Others, such as superconductivity, stem from these laws, but are not laws themselves because they only appear in some systems. Physics is often said to be the "fundamental science" (chemistry is sometimes included), because each of the other weaker sciences (biology, chemistry, geology, material science, engineering, medicine etc.) deals with particular types of material systems that obey the laws of physics. For example, chemistry is the science of matter (such as atoms and molecules) and the chemical substances that they form in the bulk. The structure, reactivity, and properties of a chemical compound are determined by the properties of the underlying molecules, which can be described by areas of physics such as quantum mechanics (called in this case quantum chemistry), thermodynamics, and electromagnetism.

Physics is closely related to mathematics, which provides the logical framework in which physical laws can be precisely formulated and their predictions quantified. Physical definitions, models and theories are invariably expressed using mathematical relations. A key difference between physics and mathematics is that because physics is ultimately concerned with descriptions of the material world, it tests its theories by observations (called experiments), whereas mathematics is concerned with abstract logical patterns not limited by those observed in the real world (because the real world is limited in the number of dimensions and in many other ways it does not have to correspond to richer mathematical structures). The distinction, however, is not always clear-cut. There is a large area of research intermediate between physics and mathematics, known as mathematical physics.

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Physics exam over!! No more physics for six weeks!!
msaint2010 (Molly) Mon, 14 Dec 2009 15:41:04 -0000
Physics exam over!! No more physics for six weeks!!
So this how time I thought my physics final was at 11:00 nope its not until 2:00 yessss I get more time to study cuz I'm def gonna need it
JASwizzy (Jasmine Switzer) Mon, 14 Dec 2009 15:38:54 -0000
So this how time I thought my physics final was at 11:00 nope its not until 2:00 yessss I get more time to study cuz I'm def gonna need it
Louisa Gilder reveals 'The Age of Entanglement' about quantum physics with enjoyable zeal -- New in Paperback...http://p.gs/kscxd
kanoa89 (William) Mon, 14 Dec 2009 15:38:43 -0000
Louisa Gilder reveals 'The Age of Entanglement' about quantum physics with enjoyable zeal -- New in Paperback...http://p.gs/kscxd
@popscab no, i wonT, tons of math and physics exercises waiting for me...
nathaliaborges (Nathália Borges) Mon, 14 Dec 2009 15:38:04 -0000
@popscab no, i wonT, tons of math and physics exercises waiting for me...
Just kicked some ass on my Physics final. Now let's pray the roads don't kick mine. http://twitpic.com/thvcx
ckinniburgh (C J Kinniburgh) Mon, 14 Dec 2009 15:37:18 -0000
Just kicked some ass on my Physics final. Now let's pray the roads don't kick mine. http://twitpic.com/thvcx
yeah #physics in school over :D
pupserfish (Simon Hägele) Mon, 14 Dec 2009 15:37:16 -0000
yeah #physics in school over :D

 
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