Physics is a natural science that deals with the study of matter. It primarily studies the motion and behavior of matter through space and time. It also investigates the related entities of energy and force. It is one of the fundamental fields of science that aims to understand the working and behavior of the universe. There are numerous sub-fields within this discipline. These are broadly categorized into classical physics and modern physics. Classical physics deals with matter and forces on a normal scale of observation. Modern physics studies the behavior of energy and matter under extreme conditions, or on very small or large scale. This book is a valuable compilation of topics, ranging from the basic to the most complex theories and principles in the field of physics. It attempts to understand the multiple branches that fall under the discipline of physics and how such concepts have practical applications. Those in search of information to further their knowledge will be greatly assisted by this book.