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  1. Physics | Definition, Types, Topics, Importance, & Facts | Britannica

    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 …

  2. physics - Kids | Britannica Kids | Homework Help

    Physics is one of the major branches of science. People who work in physics are called physicists. Physicists study matter and the forces (pushes or pulls) that act on it.…

  3. Physics Portal | Britannica

    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 …

  4. Physics Definition & Meaning | Britannica Dictionary

    PHYSICS meaning: a science that deals with matter and energy and the way they act on each other in heat, light, electricity, and sound

  5. Work | Definition, Formula, & Units | Britannica

    Dec 10, 2025 · Work, in physics, measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement. …

  6. Physics - Nuclear, Particles, Forces | Britannica

    Physics - Nuclear, Particles, Forces: This branch of physics deals with the structure of the atomic nucleus and the radiation from unstable nuclei.

  7. Wave | Behavior, Definition, & Types | Britannica

    Nov 20, 2025 · What is a wave in physics? What are the main types of waves? How do transverse waves differ from longitudinal waves? What are the basic properties of waves, like wavelength and …

  8. Velocity | Speed, Acceleration, Motion | Britannica

    Nov 20, 2025 · Accessed 17 December 2025. UMass Amherst Libraries Open Books - Physics 131: What Is Physics? - Acceleration Purdue University - Angular Velocity and Acceleration (PDF) …

  9. Amplitude | Definition & Facts | Britannica

    Oct 24, 2025 · Amplitude, in physics, the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position. It is equal to one-half the length of the …

  10. Acceleration | Definition, Facts, & Units | Britannica

    Accessed 17 December 2025. UMass Amherst Libraries Open Books - Physics 131: What Is Physics? - Acceleration Loughborough University - Velocity and Acceleration Purdue University - Angular …