Physics Concepts and Definitions

What is modern physics?
Answered by Science Channel
  • Science Channel

    Science Channel

  1. Modern physics is a branch of physics in which matter and energy are not separate (as in classical physics), but instead are alternate forms of one another. This branch is based primarily on Albert Einstein's theory of relativity and Max Planck's quantum theory. Modern physics is divided into a variety of different areas of study, including atomic physics, nuclear physics, high-energy physics, ultrasonics, solid-state physics and plasma physics. The laws of conservation are a vital part of modern physics, including those of mass, energy and momentum, which are also part of classical physics. However, the laws of conservation of subatomic particles are unique to modern physics.

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  • How large is the Large Hadron Collider?

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