Use of bold face for jargon and technical terminology, whose definitions are provided in the glossary at the end of each chapter. I did not catch any inaccuracy while browsing though the chapters, all diagrams and figures are relevant and convey accurately the information that is discussed in the text. Apart from the fact that the physics covered in the book has not changed for the past 200 years, and yet it is still relevant, the text tries to maintain its relevance by using contemporary applications both in the examples and in the problem sets. Examples of this effort is found in several places, for example, Section 6.4 on drag force and terminal speed, which includes a discussion of contemporary applications for reducing aerodynamics and hydrodynamic drag, and Section 8.5 on sources of energy, where a discussion of energy uses and clean energy is presented. Often times contemporary applications problems appear in the Example Problems, such as Example 9.9, 10.3, and 11.3, or in the Challenge Problems section. The Interface has been great. However, the PDF sometimes has confusing to read equations in the way they are written but looks fine on the online format. I wish there were links to videos or demonstrations of solving problems.

The book does have a glossary for each chapter, giving the meaning of bolded words throughout. These definitions are concise and accurate. The content of the book is about physics over a century old (300 years in most cases). The material is not going to change but I suspect that interactive online resources will supplant the text pasted online that is here. the volumes are somwhat dense in parts with small text but none the less very readable. there are plenty of two tone diagrams and full colour pictures to aid the reader. The presentation of topics is made in a clear, accessible, and approachable way, including many visuals and examples. The figures and examples do try to be inclusive of all genders, ethnicities, and cultures. While physics as a discipline continues to struggle with gender representations and authentic inclusion of underrepresented minority groups, this textbook is no worse than any other textbook currently on the market.

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I think this book is clear to the reader in a hurry, but not too much in a hurry. Some sentences are a little hard to understand if the context isn’t clear. This book is decent from what I remember, but if your required text is good then I don't think I would bother spending a lot of money on it. I used it a fair bit during my first year E&M class (it was the required text), but I actually ended up donating it to someone a few months ago because I hadn't touched it since. No spelling and grammar errors have found in this textbook. It is a great textbook for students in college. The text is clear and easy to follow. All figures and formulas are explained in sufficient detail, and overall the language in the text is coherent. In general, the book is lucid and accessible. Sometimes the steps for calculating the calculus problems are not detailed enough so that for a student who is currently learning calculus it is tough for them to follow the logic and steps. There are times when the book is a little too simplistic and feels like Middle School level of reading, and then there are times when the reading is dense and needs to be explained more clearly.

The topics in the textbook are well established and it would be difficult to find a topic that is not relevant or needs an update in several years, all examples and general information is relevant to standard University Physics, now and in future. Dr. Samuel Ling has taught introductory and advanced physics for over 25 years at Truman State University, where he is currently Professor of Physics and the Department Chair. Dr. Ling has two PhDs from Boston University, one in Chemistry and the other in Physics, and he was a Research Fellow at the Indian Institute of Science, Bangalore, before joining Truman. Dr. Ling is also an author of A First Course in Vibrations and Waves, published by Oxford University Press. Dr. Ling has considerable experience with research in Physics Education and has published research on collaborative learning methods in physics teaching. He was awarded a Truman Fellow and a Jepson fellow in recognition of his innovative teaching methods. Dr. Ling’s research publications have spanned Cosmology, Solid State Physics, and Nonlinear Optics.The text is consistent in its use of terms and variables. However, summations are done early in the text without indices (Newton’s Laws) but are fixed in the section equilibrium. There are a few instances where the choice of symbols is confusing, but otherwise the text is consistent in terminology. This is the best free general physics textbook I have found so far, and it provides examples and application points which point to relevant technology and cultural phenomena, but usually in a general enough way that it does not require a separate update every 5 years. One exception is the photo of an early iPhone as an example of GPS - it already looks a bit dated given the pace of cell phone updates, and I expect it will seem moreso to students as time goes on, given the familiarity of this generation with the latest in smartphone technology. The presentation of the text is clear and follows a typical sequence of subjects in standard introductory physics textbooks. Nice aspects of its organization are:

On another note, I find that oscillation and waves are usually coupled with optics and electricity/magnetism. However, in the three-volume set here, oscillation and waves are in Volume I while Optics are in Volume III. Overall, the language and format appears to be less technical/formal than some standard texts, such as Halliday. Most students these days supplement the text with other resources such as video lectures and simulations, and open courseware, which I encourage. However, this means convincing students to read the text in-depth is even more difficult than in the past. The less formal language may help with this, and students comprehend the material at a level such that student outcomes will be affected by the slight reduction in rigor. Certain sections dealing with common misconceptions, such as centrifugal force, were given specific treatment with careful language, which is important.

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