University Physics is a three-volume collection that meets the scope and sequence requirements for two- and three-semester calculus-based physics courses. Volume 1 covers mechanics, sound, oscillations, and waves. Volume 2 covers thermodynamics, electricity, and magnetism, and Volume 3 covers optics and modern physics. This textbook emphasizes connections between theory and application, making physics concepts interesting and accessible to students while maintaining the mathematical rigor inherent in the subject. Frequent, strong examples focus on how to approach a problem, how to work with the equations, and how to check and generalize the result. – This is the official print version of this OpenStax textbook. OpenStax makes full-color hardcover and B&W paperback print copies available for students who prefer a hardcopy textbook to go with the free digital version of this OpenStax title. The textbook content is exactly the same as the OpenStax digital book. This textbook is available for free download at the www.openstax.org website, but as many students prefer to study with hardcopy printed books, we offer affordable OpenStax textbooks for sale through this storefront and on Amazon as well as through campus bookstores. OpenStax course materials are the most widely used OER textbooks in the world. Always free in digital format, the books are also available low cost in full-color hardcover and B&W paperback print formats.