Physics is the study of matter and energy and their interactions. The fundamental ideas of physics underlie all of the basic sciences -- astronomy, biology, chemistry, and geology -- and all of applied science and engineering. Physicists explore a range of natural phenomena from the dynamics of grains of sand on a beach to the birth of the universe. Their discoveries and inventions, like the transistor and the laser, have changed the way we live. Virtually all the problems of contemporary society have components which physicists are helping to solve.

What do physicists study?

Today is an exciting time to study physics. Physicists study everything from the dynamics of the grains of sand on a beach to the formation of galaxies, from elementary particles to semiconductors, from fiber optics to computers. Physicists test their ideas by performing experiments which lead to new ideas and theories.

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