Physics is the most fundamental science and underlies the understanding of nearly all areas of science, technology, and engineering. Physics is concerned with the study of energy, space, time, matter, the interaction between material objects and the laws that govern these interactions at various scales from sub nano-scale to light-years scale. Physicists study mechanics, sound, heat, light, electric and magnetic fields, gravitation, relativity, atomic and nuclear physics, solid state physics, wave-like properties of particles and particle-like properties of radiation.

Applied physics is not a specific branch of physics but the application of all branches of physics to the broad realm of practical problems in scientific and industrial applications, applied science, and advanced industry. Applied Physics (AP) is the interface between physics, applied sciences and technology; between the theory, laboratory, and practice. It involves applications of optics, acoustics, and materials in fields such as nanotechnology, telecommunications, medical physics and devices, or advanced and electronic materials.

The Applied Physics degree is a flexible degree designed to interface physics with applied sciences and engineering disciplines. The degree in Applied Physics at Kettering University provides excellent preparation for work in industry or in government agencies. The program also serves as a solid foundation for students desiring to go on to graduate school in physics or any number of fields in pure and applied science. The curriculum in Applied Physics provides a solid education in mathematics, and applied sciences and physics with emphasis on the four areas of Applied Optics, Acoustics Materials Science, nanotechnology and Medical Physics.