Physics is the most fundamental of all the sciences. It aims to understand how nature is put together and how it works. Physics examines matter and energy in all their forms: from the kinetic energy of a speeding car to the nuclear energy released by fusion in the core of a star. The concepts you learn in Physics can be applied to mechanical, electrical, magnetic, astronomical, chemical and biological situations. Its principles are essential in many applied disciplines such as Engineering, Architecture, Environmental Science and Information Technology.