A physics teacher instructs high school students on the science of matter and motion through space. A physics teacher often uses scientific experiments to illustrate a lesson. The responsibilities of a physics teacher include lesson planning, organizing and conducting tests and labs, and presenting physics lessons, as well as preparing, testing, and grading exams. Qualifications for a career as a physics teacher include a teaching certificate and a bachelor’s degree in physics, and a master’s degree in education or physics, though specific requirements vary by state.