PHYSICS 128
Cosmology and Particle Astrophysics
Grades
3.57
Average grade awarded in PHYSICS 128. Not a student rating: this is what the grades were.
In the A range
74%
of the 34 letter grades
D, F or W
2.9%
of every letter grade awarded, plus withdrawals
Taken pass/no pass
0%
nobody in the record took it pass/no pass
The registrar's own records: 34 grades over 2 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.
What is inside that record
No summer session is in that record.
The table below splits them, and term averages across those 2 terms ran 3.36 to 3.85.
Historical grades for all professors, across recorded terms. The course summary above includes all professors.
- A+ 5 · 14.7%
- A 13 · 38.2%
- A- 7 · 20.6%
- B+ 2 · 5.9%
- B 3 · 8.8%
- B- 1 · 2.9%
- C+ 2 · 5.9%
- D- 1 · 2.9%
Percentages are of the 34 letter grades. Grey bars are non-letter outcomes.
How the non-letter outcomes are counted
They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.
By instructor
| Instructor | Predicted GPA | Raw | n | Terms | A range | Workload | Fall 2025 |
|---|---|---|---|---|---|---|---|
| GELMINI, GRACIELA BEATRIZ reviews ↗ | 3.56 | 3.57 | 34 | 2 | 74% | - | not teaching it |
Why Predicted is not the Raw average
“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so an instructor with a handful of students sits near the course mean rather than topping the list.
Grade records describe outcomes. For what a course is like to take, read student reviews written on dibs below or follow the separate external review link.
Workload and assignments
Work types reported in BruinWalk reviews of this course, across recorded instructors and terms. They may differ from this term's syllabus.
dibs has not read this course’s reviews, so it cannot say what kind of work it sets. That is dibs not having looked. It is not a course without papers or exams, and the reviews linked below are the answer until dibs catches up.
What comes first
dibs has not read a class page for PHYSICS 128 in any term it holds, so it cannot say what comes before it.
Counted in courses rather than quarters: dibs does not know which of them a department lets you take together.
From the registrar's catalog
Lecture, three hours; discussion, one hour. Requisites: courses 115A, 115B, 126. Introduction to cosmology and high-energy particle astrophysics, based on latest developments of both experiment and theory. Special emphasis on unified picture of universe that emerges from particle physics, astronomy, and cosmology. Extensive discussion of unsolved problems and future prospects to help students determine their opportunities in future. Letter grading.
Sections in Fall 2025
From the people who took it
Student reviews
What taking PHYSICS 128 was like: the work, the teaching, and what students wish they’d known.
Your experience could be the first.
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