(Cross-listed as PHYS 094) The grading mode for this course is credit/no credit (CR/NC). 0.5, 1, or 2 credits. (CR/NC) Fall 2024. Staff. Spring 2025. Staff. Fall 2025. Staff. Spring 2026. Staff. Catalog chapter: Physics and Astronomy Department website: http://www.swarthmore.edu/physics-astronomy