Major physics terms are explained in these articles. Here you can learn about some of the fundamental physics concepts.

Ultraviolet Radiation

Ultraviolet Radiation, electromagnetic radiation with wavelengths between those of visible violet light and those of X rays.

21-30 of 35
  • Flexibility


    Flexibility, the property of a substance that enables it to bend without breaking. See more »

  • Geissler Tube

    Geissler Tube

    Geissler Tube, an electron tube that is used to study the behavior of gases. It was invented in the 1860's by Heinrich Geissler, a German. See more »

  • Lenz's Law

    Lenz's Law

    Lenz's Law, a law of electromagnetic induction formulated in 1833 by the German physicist H. See more »

  • Mass Spectroscope

    Mass Spectroscope

    Mass Spectroscope, an instrument used to measure the mass of atoms and molecules. See more »

  • Perpetual Motion Machine

    Perpetual Motion Machine

    Perpetual Motion Machine, a device that will run forever without any outside source of energy. See more »

  • Radiometer


    Radiometer, an instrument designed to detect and measure radiant energy. A simple type, devised by Sir William Crookes, consists of four vanes of mica or aluminum foil that revolve on a needle point within a glass globe from which most of the air has been removed. See more »

  • Regelation


    Regelation, the melting of ice under pressure and its refreezing when the pressure is relieved. See more »

  • Relativity, Theory of

    Relativity, Theory of

    Relativity, Theory of, a description of space and time as determined by physical measurements. See more »

  • Specific Heat

    Specific Heat

    Specific Heat, a measure of the heat required to raise the temperature of a given amount of a substance by one degree. See more »

  • String Theory

    String Theory

    String Theory, in physics, a theory that describes the most elementary objects in nature as extremely small, one-dimensional structures called strings. See more »

21-30 of 35
More To Explore
  • Most Popular
  • Most Watched
Don't Miss