Physics plays a critical role in addressing the global energy crisis faced by both developed and developing countries. By collaborating with other fields such as engineering, biochemistry, and computer science, physics professionals and scientists are constantly finding innovative solutions to harness existing energy sources and explore new ones. This book provides an opportunity for students to enhance their problemsolving skills through a series of problems, questions, and answers. It also presents the latest research and reviews on various aspects of physics, including original research articles, review articles, and communications.