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Physics

Scientific field of studyPhenomena and processes of physics’ various domains, clockwise from the upper left: a Newton's cradle (classical mechanics), entropic changes in a snowflake (thermodynamics), a Chladni figure (waves, oscillations & acoustics), the aurora borealis (geophysics & electromagnetism), an insect floating across a pond (fluid mechanics & biophysics), gravitational lensing (astrophysics, optics & relativity), the double-slit experiment (quantum mechanics), and a Feynman diagram of beta decay (nuclear physics & particle physics).Physics is the scientific study of matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force.

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