After MATH 022
Gateway: MATH 022
Building the department map…
Department paths
Courses with no prerequisites inside the department that unlock the most downstream work.
Each of these unlocks the largest share of downstream work on this map. Courses from other departments can appear here when they genuinely gate PHY coursework.
Generated from Lehigh University’s catalog, prerequisite, and concentration data. Spotted an error? Departments can adjust labels, ordering, and notes without a code change, so contact us.
Intro tiers at the top, advanced work below; arrows point from a prerequisite to the course it unlocks. Courses from other departments appear where they gate PHY work. Click any course to see what it requires and unlocks without leaving this page; hovering lights up its neighbors. The lists on this page carry the same courses in text form.
Showing the 60 PHY and feeder courses that have prerequisite links. 18 more PHY courses have no recorded prerequisites. They are listed under Tracks below, not drawn as loose dots here.
The concentrations and majors that build on PHY, and how their requirements are structured. Expand a program to see which courses satisfy each group, then plan it in the Planner.
Option Aall required
All ofall required
1 course from1 required
1 course from1 required
Mathematics and Collateral Science Requirementschoose 1
One additional Mathematics course ( MATH 012 and above).; Complete 6-8 credits (at least two additional courses) in Astronomy ( ASTR 105 or above), Biology ( BIOS 041 or above), Chemistry ( CHM 031 or above), Mathematics ( MATH 012 or above), Computer Science and Engineering ( CSE 003 or above), or Physics ( PHY 013 or above).
1 course from1 required
Upper-level clusters, grouped by the gateway that opens them.
Gateway: MATH 022
Gateway: PHY 011
The deepest prerequisite chains in PHY. These are the routes that take the most semesters to climb.
9 courses deep, ending at PHY 443
7 courses deep, ending at PHY 221
7 courses deep, ending at PHY 352
7 courses deep, ending at PHY 431
1 course from1 required
1 course from1 required
Elective Courses12 required
Select four Physics or Astronomy courses numbered higher than 100. One course in an appropriate technical area offered in other departments may be substituted, when selected with advisor approval. Students planning graduate work in physics are encouraged to include PHY 273 (Research) among their electives.
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
Elective Courses9 required
Select three Physics or Astronomy courses numbered higher than 100. One course in an appropriate technical area offered in other departments may be substituted, when selected with advisor approval. Students planning graduate work in physics are encouraged to include PHY 273 (Research) among their electives.
Required Biological Science coursesall required
Advanced Laboratory; Electives in Biological Sciences (3 hours minimum); Technical Writing (2 hours minimum)
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
Major Electives15 required · verify with the official sheet
Select three courses from EES or cross-listed offerings at the 100 level or above.; Select four courses from EES or cross-listed offerings at the 300 level or above.
Field Requirementchoose 1
Internships or work experience, approved by your advisor: the experience must include substantial work in the field involving research and/or technical work.; Complete 5 of the following 7 courses
MATH 009 or higher
Major Electives15 required · verify with the official sheet
Select six courses from EES or cross-listed offerings at the 100 level or above.
1 course from1 required
1 course from1 required
1 course from1 required
All PHY courses in the Lehigh catalog
Grade medians are for verified students. Sign in with your school email to see them.
Use your school emailNo section schedule with instructor names for PHY yet.
No clubs or organizations on record under PHY yet.
This shows once five students share their club memberships.
PHY does not run a page here yet. When it does, its events show up here and on the Lehigh campus feed.