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  2. Physics | Definition, Types, Topics, Importance, & Facts |...

    www.britannica.com/science/physics-science

    Physics is the branch of science that deals with the structure of matter and how the fundamental constituents of the universe interact. It studies objects ranging from the very small using quantum mechanics to the entire universe using general relativity.

  3. Physical science | Definition, History, & Topics | Britannica

    www.britannica.com/science/physical-science

    Physical science is the study of the inorganic world. That is, it does not study living things. (Those are studied in biological, or life, science.) The four main branches of physical science are astronomy, physics, chemistry, and the Earth sciences, which include meteorology and geology.

  4. Physics Portal | Britannica

    www.britannica.com/browse/Physics

    Physics, the basic physical science, studies objects ranging from the very small (using quantum mechanics) to the entire universe (using general relativity). It deals with the structure of matter and how the fundamental constituents of the universe interact.

  5. The physical sciences study the inorganic world and comprise the fields of astronomy, physics, chemistry, and the Earth sciences. The biological sciences such as biology and medicine study the organic world of life and its processes.

  6. principles of physical science - Encyclopedia Britannica

    www.britannica.com/science/principles-of-physical-science

    Principles of physical science, the procedures and concepts employed by those who study the inorganic world. Physical science, like all the natural sciences, is concerned with describing and relating to one another those experiences of the surrounding world that are shared by different observers.

  7. physics summary | Britannica

    www.britannica.com/summary/physics-science

    Long called natural philosophy, physics (from Greek physikos) is concerned with all aspects of nature, covering the behaviour of objects under the action of given forces and the nature and origin of gravitational, electromagnetic, and nuclear force fields. The goal of physics is to formulate comprehensive principles that bring together and ...

  8. Science Portal | Britannica

    www.britannica.com/browse/Science

    Physics, the basic physical science, studies objects ranging from the very small (using quantum mechanics) to the entire universe (using general relativity). It deals with the structure of matter and how the fundamental constituents of the universe interact.

  9. Gravity | Definition, Physics, & Facts | Britannica

    www.britannica.com/science/gravity-physics

    Gravity is measured by the acceleration that it gives to freely falling objects. At Earth ’s surface the acceleration of gravity is about 9.8 meters (32 feet) per second per second. Thus, for every second an object is in free fall, its speed increases by about 9.8 meters per second.

  10. Physics - Nuclear, Particles, Forces | Britannica

    www.britannica.com/science/physics-science/Nuclear-physics

    Physics - Nuclear, Particles, Forces: This branch of physics deals with the structure of the atomic nucleus and the radiation from unstable nuclei. About 10,000 times smaller than the atom, the constituent particles of the nucleus, protons and neutrons, attract one another so strongly by the nuclear forces that nuclear energies are ...

  11. Isaac Newton, the brilliant physicist and mathematician, revolutionized our understanding of the universe with his laws of motion and universal gravitation, forever changing the course of scientific inquiry.