We all need sciences, don't we? Is physics not one? With rising need for technological growth in all facets of life, not too many people can go far in sciences without mastering the subject physics from the scratches. The text book is a comprehensive guide to students in colleges, polytechnics and first year undergraduates. The book is designed to enable the students of physics effectively discover themselves in a world of sciences since physics is the bedrock of technological advancement of any nation. This book vigorously emphasizes mechanics properties of matter and heat energy as foundation of science, engineering and applied sciences. Chapter one discuses dimension of physical quantities, dynamics (chapter two), Hydrodynamics (chapter three), Heat, temperature and work (chapter four) and thermal expansion/ laws of thermodynamics (chapter five). The book will no doubt meet the needs of teachers and students in the areas of physics covered. - Mbwas, D.C Ag. HOD Basic Studies Department. Plateau State College of Agriculture, Garkawa