The Physics major starts with a three-course introduction to space, time, motion, electromagnetism, oscillations, and waves. It also begins with a comprehensive, three-course introduction to calculus.

Everyone's path through the major is slightly different, but we have some advice on where to start based on your prior experience with physics and calculus. Be sure to check out potential Pathways through the Physics Major and to consult with your advisor or our Department Chair as well.

### Placement advice

Most students considering a major in Physics or Astronomy should start with *The Newtonian Synthesis* (PHYS 123), which is only offered in the Fall. If you are working on the calculus prereq, there are several Physics and Astronomy courses in the Fall that have no prerequisites: *Energy* (PHYS 109) and *Exploring the Cosmos* (ASTR 111). We also offer *Mechanics* (PHYS 116) each semester; in the Fall, we recommend potential majors take PHYS 123. PHYS 116 is an option for a Spring-semester start, for example if you are completing the calculus pre-req in the Fall.

If you have already taken a calculus-based mechanics course and received a 5 on the AP Physics C Mechanics exam, you automatically place out of PHYS 123 and should take *Oscillations and Waves* (PHYS 125, Fall) and/or *Introductory Astrophysics* (ASTR 228, Fall). If you have taken a calculus-based mechanics course but do not have AP credit, you should take our placement exam. The placement exam covers Newton’s laws of motion, work and energy, momentum, rotation, gravitation, and oscillations. Tests must be submitted by the first day of class. The Department Chair will contact students with results by email. If you have scores from IB Higher-Level or comparable exams, you should take the placement exam.

### Math preparation

Physics and Astronomy make thorough use of the calculus. The Physics major requires MATH 111, 121, and 211. If you are placed in MATH 105/106 or 111, you should complete this before taking PHYS 123 or 116. If you are placed in MATH 121, you should take it at the same time as PHYS 123, since MATH 121 is a prerequisite for PHYS 124. If you are placed into MATH 211, you should take it in your first two years – earlier if you plan to take more math courses.

### Declaring your major

Majors are officially declared in Workday. See the advising information page for a how-to guide. Feel free to contact the department chair with any questions.