Physics uncovers a picture of the world that is continually changing. For many students and scientists, Physics is an immensely satisfying intellectual persuit. In some areas it is a difficult subject, in others easy, but always it is self consistent and able to explain many aspects of nature. The force of gravity that can be demonstrated in the lecture room is the same force that holds the planets in orbit around the sun and that creates black holes, among the most intriguing objects in the Universe. Physics deals with fundamentals - the nature of space and time, matter and energy, simplicity and complexity.
Physics underpins all sciences.
Many major developments in chemistry, biology, geology and even medicine have been made by physicists. Physics is also the foundation of much modern technology. The quantum theory, which underpins much of modern chemistry, was developed by physicists in the 1920's. X-Ray diffraction and radioactive tracers, used to explore the structure of DNA and to reveal biochemical processes, were developed by physicists. Physics is a generalist degree that, instead of preparing you for a narrow career path in just one area, allows you great freedom of choice in your ultimate employment.