Physics is the discipline that investigates the inner workings of the world in which we live and seeks to understand the properties and interactions of atoms, nuclei and the fundamental particles of the Universe.? It deals with the forces that govern the history and the future of the Universe, from the time of its birth to its ultimate fate.? And, on a more practical scale, physics helps us understand the workings of the human body, the properties of engineering materials, and the most efficient uses of energy.? Whatever the question, it is likely that physics holds the answer.?