In an era when few women were working as scientists, Phillips became a leading science educator and spent the majority of her career as a professor of physics. In early 1936 the
American Association of University Women announced that Philips was the recipient of its
Margaret E. Maltby award, one of six women to receive its research fellowships for the 1936–37 academic year. Although Phillips appeared before a subcommittee hearing in New York and agreed to answer questions relating to her work as a scientist and physics educator, she invoked her
Fifth Amendment rights when asked about other topics, including questions about whether she was a member of the
Communist party. As a result of her refusal to cooperate with the commission as a matter of principle, Phillips, a highly regarded physics educator, was dismissed from her professorship at Brooklyn College and her part-time position at the Columbia University Radiation Laboratory. She remained unemployed as a college professor for five years. While unemployed, Phillips lived on her modest savings and co-authored two science textbooks:
Principles of Physical Science (1957), with Francis Bonner, and
Classical Electricity and Magnetism (1955), with
Wolfgang K. H. Panofsky. Both of these publications became standard textbooks in collegiate-level science courses. Phillips returned to teaching in 1957, when she became associate director of a teacher-training institute at
Washington University. Phillips remained at
St. Louis until 1962, when she joined the faculty at the
University of Chicago as a professor of physics. Under her guidance the university began teaching
physical science courses to non-science majors. She also made laboratory work part of its curriculum. Phillips retired as a
professor emerita from the University of Chicago in 1972, but continued to teach elsewhere. Philips was active in the
American Association of Physics Teachers throughout her career. She became a member of the AAPT in 1943 and served as its first woman president (1966–67). She also co-edited the organization's official history. In addition, Phillips served on the Commission in College Physics (1960–68) and on the advisory board of the School of Mathematics Study Group (1964–67). For her service to the field of science education, Phillips was elected a fellow of the
American Physical Society and the
American Association for the Advancement of Science. == McCarran Commission ==