Contemporary research in physics can be broadly divided into nuclear and particle physics; condensed matter physics; atomic, molecular, and optical physics; astrophysics; and applied …

Dec 28, 2025 · Physics, science that deals with the structure of matter and the interactions between the fundamental constituents of the observable universe. Its scope of study …

Physics is a discipline that appeals to problem solvers who are curious about the world. Physicists work to gain knowledge of the mysteries of the universe—visible matter makes up only about 5 …

Physics is the most fundamental of the sciences. Its goal is to learn how the Universe works at the most fundamental level—and to discover the basic laws by which it operates.

The Physics Classroom Tutorial presents physics concepts and principles in an easy-to-understand language. Conceptual ideas develop logically and sequentially, ultimately leading …

The Physics Hypertextbook is a reaction to three big problems with textbooks: lack of writer's voice, layouts that reduce readability, and outdated economics.

Physics is often described as the study of matter and energy. It is concerned with how matter and energy relate to each other, and how they affect each other over time and through space.