This book is a compilation of teaching materialspresented in a format which is easilyaccessible to students of schools and colleges.Most concepts of the main topics are given inthe form of mind maps linking the key wordsand phrases. Mind maps are followed by short texts, graphs andexplanations for easy consolidation of the concepts. It is believedthat the mind maps will provide a strong focus on the wholeconcept and a powerful tool for understanding physics. The bookwill be a pathway to learning and enjoying physics.