Classical physics

Definition

Classical physics is the branch of physics that deals with phenomena that can be described by theories developed before the advent of quantum mechanics. It primarily includes Newtonian mechanics, electromagnetism, thermodynamics, and classical wave theory.

5 Must Know Facts For Your Next Test

1. Classical physics relies on deterministic laws where outcomes are predictable given initial conditions.
2. Newton's laws of motion form the foundation of classical mechanics.
3. Maxwell's equations are crucial in describing classical electromagnetism.
4. Classical physics successfully explains macroscopic phenomena but fails at atomic and subatomic levels.
5. Thermodynamics and classical wave theory are also integral parts of classical physics.

Review Questions

• What are the main areas covered under classical physics?
• Why does classical physics fail to explain atomic and subatomic phenomena?
• List and briefly describe one major law or principle from each area of classical physics (mechanics, electromagnetism, thermodynamics, wave theory).

Related terms

Newtonian Mechanics: A branch of classical physics that deals with the motion of objects using Newton's laws of motion.

Electromagnetism:

A branch of classical physics concerned with electric and magnetic fields and their interactions with matter.

Thermodynamics: The study of heat, energy, and work, and how they interconvert in physical processes.