Fizika

	Fizika
	Ekvivalencija mase i energije
Grane
	Klasična mehanika ; Elektromagnetizam ; Statistička mehanika · Termodinamika ; Kvantna mehanika ; Teorija relativnosti
Polja istraživanja
	Primijenjena fizika ; Astrofizika ; Atomska, molekularna i optička fizika ; Biofizika ; Fizika kondenzirane tvari ; Geofizika ; Fizika elementarnih čestica
Eksperimenti iz prošlosti
	2-degree-Field Galaxy Redshift Survey ; 2-Micron All-Sky Survey (2MASS) ; Bellov test · BOOMERanG · Camera obscura experiments · Cavendishov eksperiment · Cosmic Background Explorer (COBE) · Davisson-Germer · Youngov eksperiment · Foucaultovo njihalo · Franck Hertz · Gravitacijska Sonda A · Gravitacijska sonda B · Geiger–Marsden · Davisov eksperiment · Oil-drop experiment · Michelson-Morley · Neutrino eksperiment · Sloan Digital Sky Survey · Stern-Gerlach · Wilkinsonova mikrovlana anziotropna sonda
Eksperimenti u toku
	Relativistički sudarač teških iona; HERA · LHC ; Svemirski teleskop James Webb
Znanstvenici
	Bohr · Dirac · Einstein · Feynman· Galileo · Heisenberg · Maxwell · Newton · Pauli · Rutherford · Schrödinger · Wigner

Fizika (grč. φύσις, phisis: priroda^[1]^[2]) je osnovna fundamentalna prirodna nauka koja proučava osnovna ili suštinska svojstva prirodnih pojava i tela.^[3] Fizičari proučavaju osnovna svojstva, strukturu i kretanje materije u prostoru i vremenu.^[4] Fizičke teorije se najčešće izražavaju kao matematičke relacije. Najutemeljenije pojave se nazivaju fizičkim zakonima ili zakonima fizike, međutim, i oni su kao i sve druge naučne teorije, podložni promenama. Pri tome, novi fizički zakoni obično ne isključuju stare, nego samo ograničavaju domen njihovog važenja.^[5]^[6]

Fizika je usko povezana sa drugim prirodnim naukama, kao i matematikom (zbog matematičkog opisivanja prirode), posebno hemijom, naukom koja se bavi atomima-hemijskim elementima i molekulima-hemijskim jedinjenjima. Hemija se u mnogome bazira na fizici, pogotovo na kvantnoj mehanici, termodinamici i elektromagnetizmu. Ipak, hemijske pojave su dovoljno različite i kompleksne tako da je hemija zasebna disciplina.

↑ „physics”. Online Etymology Dictionary.
↑ „physic”. Online Etymology Dictionary.
↑ At the start of The Feynman Lectures on Physics, Richard Feynman offers the atomic hypothesis as the single most prolific scientific concept: "If, in some cataclysm, all [] scientific knowledge were to be destroyed [save] one sentence [...] what statement would contain the most information in the fewest words? I believe it is [...] that all things are made up of atoms – little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another ..." (Feynman, Leighton & Sands 1963, p. I-2)
↑ "Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular succession of events." (Maxwell 1878, p. 9)
↑ Young & Freedman 2014: str. 9
↑ "Physics is the study of your world and the world and universe around you." (Holzner 2006, p. 7)

[etymonline-physics-1] „physics”. Online Etymology Dictionary.

[etymonline-physic-2] „physic”. Online Etymology Dictionary.

[feynmanleightonsands1963-atomic-3] At the start of The Feynman Lectures on Physics, Richard Feynman offers the atomic hypothesis as the single most prolific scientific concept: "If, in some cataclysm, all [] scientific knowledge were to be destroyed [save] one sentence [...] what statement would contain the most information in the fewest words? I believe it is [...] that all things are made up of atoms – little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another ..." (Feynman, Leighton & Sands 1963, p. I-2)

[maxwell1878-physicalscience-4] "Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular succession of events." (Maxwell 1878, p. 9)

[youngfreedman2014p9-5] Young & Freedman 2014: str. 9

[holzner2003-physics-6] "Physics is the study of your world and the world and universe around you." (Holzner 2006, p. 7)

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