Introduction to Fluid Dynamics and Its Biological and Medical Applications, 85. The Wave Nature of Matter; 236. Fictitious Forces and Non-inertial Frames: The Coriolis Force, 39. Flow Rate and Its Relation to Velocity, 87. Atomic Physics. The correspondence principle states that in the classical limit (large, slow-moving objects), quantum mechanics becomes the same as classical physics. Limits of Resolution: The Rayleigh Criterion, 221. Just as with classical physics, quantum physics has several subfields, such as mechanics and the study of electromagnetic forces. We accept as fact that matter is composed of atoms, the smallest unit of an element, and that these atoms combine to form molecules, the smallest unit of a compound. Quantization of Energy; 231. Photon Momentum; 234. Discovery of the Parts of the Atom: Electrons and Nuclei, 242. Introduction to Two-Dimensional Kinematics, 16. Conservative Forces and Potential Energy, 51. The LibreTexts libraries are Powered by MindTouch® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. It led to intense debates among scientists, and Introduction to Temperature, Kinetic Theory, and the Gas Laws, 94. Quantum mechanics can be thought of roughly as the study of physics on very small length scales, although there are also certain macroscopic systems it directly applies to. In this chapter, we begin the development of quantum mechanics and its description of the strange submicroscopic world. College Physics by OSCRiceUniversity is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted. Sound Interference and Resonance: Standing Waves in Air Columns, XVIII. Quantum physics is the branch of physics that deals with small objects and the quantization of various entities, including energy and angular momentum. Paul Peter Urone (Professor Emeritus at California State University, Sacramento) and Roger Hinrichs (State University of New York, College at Oswego) with Contributing Authors: Kim Dirks (University of Auckland) and Manjula Sharma (University of Sydney). Introduction to Rotational Motion and Angular Momentum, 69. Photon Energies and the Electromagnetic Spectrum, 236. Therapeutic Uses of Ionizing Radiation, 265. Biological Effects of Ionizing Radiation, 259. In the following chapters we shall touch upon several Kinetic Energy and the Work-Energy Theorem, 45. Statistical Interpretation of Entropy and the Second Law of Thermodynamics: The Underlying Explanation, 115. Molecular Transport Phenomena: Diffusion, Osmosis, and Related Processes, XIII. Applications of Statics, Including Problem-Solving Strategies, 65. Have questions or comments? The Most General Applications of Bernoulli’s Equation, 88. Motion Equations for Constant Acceleration in One Dimension, 12. Viscosity and Laminar Flow; Poiseuille’s Law, 90. Speed of Sound, Frequency, and Wavelength, 132. Electric Charge and Electric Field, 135. know of our world. The Particle-Wave Duality Reviewed; XXX. applying his intuition and common sense in comprehending the stars, X Rays: Atomic Origins and Applications, 243. That goal is within our grasp. Introduction to Circuits and DC Instruments, 162. Entropy and the Second Law of Thermodynamics: Disorder and the Unavailability of Energy, 114. Collisions of Point Masses in Two Dimensions, 63. Introduction to Electromagnetic Induction, AC Circuits and Electrical Technologies, 181. Introduction to Frontiers of Physics, 273. (See (Figure).) Electromagnetic Induction, AC Circuits, and Electrical Technologies, 179. Introduction to Vision and Optical Instruments, 213. Introduction to Quantum Physics; 230. Temperature, Kinetic Theory, and the Gas Laws, 92. Introduction to Heat and Heat Transfer Methods, 101. fascinating areas of the quantum world. In later chapters, we will examine many areas, such as atomic and nuclear physics, in which quantum mechanics is crucial. Medical Applications of Nuclear Physics, 256. Quantum mechanics is the branch of physics needed to deal with submicroscopic objects. Certain aspects of quantum mechanics are familiar to us. Electrical Potential Due to a Point Charge, XX. Collisions of Extended Bodies in Two Dimensions, 73. [ "article:topic-guide", "authorname:openstax", "license:ccby", "showtoc:no", "program:openstax" ], Creative Commons Attribution License (by 4.0). Because these objects are smaller than we can observe directly with our senses and generally must be observed with the aid of instruments, parts of quantum mechanics seem as foreign and bizarre as parts of relativity. Introduction to quantum mechanics David Morin, morin@physics.harvard.edu This chapter gives a brief introduction to quantum mechanics. help the reader understand the fundamental concepts of quantum Atoms, molecules, and fundamental electron and proton charges are all examples of physical entities that are quantized—that is, they appear only in certain discrete values and do not have every conceivable value.