KEY MESSAGE: As the most widely adopted new physics text in more than 50 years, Knight’sPhysics for Scientists and Engineerswas published to widespread critical acclaim from professors and students. In this eagerly awaited second edition, Knight builds on the research-proven instructional techniques he introduced, as well as national data of student performance, to take student learning even further. Knight’s unparalleled insight into student learning difficulties, and his impeccably skillful crafting of text and figures at every level — from macro to micro — to address these difficulties, results in a uniquely effective and accessible book, leading students to a deeper and better-connected understanding of the concepts and more proficient problem-solving skills. Building on an NSF-sponsored educational research program and input from tens of thousands of student users, the second edition refines and extends the pedagogical innovations that years of use has now shown to be effective. Unprecedented analysis of national student metadata has allowed every problem to be systematically enhanced for educational effectives, and to ensure problem sets of ideal topic coverage, balance of qualitative and quantitative problems, and range of difficulty and duration.Newton's Laws: Concepts of Motion • Kinematics in One Dimension • Vectors and Coordinate Systems • Kinematics in Two Dimensions • Force and Motion • Dynamics I: Motion Along a Line • Dynamics II: Interacting Objects • Dynamics III: Motion in a Plane Conservation Laws:  Impulse and Momentum • Energy • Work Applications of Newtonian Mechanics: Rotation of a Rigid Body • Newton's Theory of Gravity • Oscillations • Fluids and Elasticity Thermodynamics: A Macroscopic Description of Matter • Work, Heat, and the First Law of Thermodynamics • The Micro/Macro Connection • Heat Engines and Refrigerators Waves and Optics: Traveling Waves • Superposition • Wave Optics • Ray Optics • Optical