Physicist IV researches subjects such as mechanics, heat, light, sound, electricity, pneumatics, magnetism, and radiation. Develops laws and theories of physics for their application to specific industries and fields. Being a Physicist IV describes and illustrates observations and conclusions in mathematical terms. Devises procedures for physical testing of materials. Additionally, Physicist IV conducts instrumental analyses to determine physical properties of materials. Requires a master's degree. Typically reports to a manager or head of a unit/department. Physicist IV is a specialist on complex technical and business matters. Work is highly independent. May assume a team lead role for the work group. To be a Physicist IV typically requires 7+ years of related experience.