The book “ A New Approach to I.C.S.E. Physics Part I for Class IX ” has been revised and updated in accordance with the latest syllabus of physics prescribed by the Council for Indian School Certificate Examination, New Delhi for Class IX of Indian Certificate of Secondary Education (I.C.S.E.) Examinations. The main strength of the book lies in the subject matter and the experience that a student will get in solving the difficult and complex problems of Physics. Stress has been laid upon mastering the fundamental principles of Physics, rather than specific procedures. The visual appeal of the book together with the material makes studying physics an enjoyable experience. Our long tenure as physics teachers and interaction with students have helped us immensely in the presentation of this book.