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PHYSICS 5A · Lec 2

Physics for Life Sciences Majors: Mechanics and Energy

Fall 2026Tung, N.C.5 units

Seats, time, final and grades

Seats

Closed.

300 of 300 enrolled, lecture and all discussions summed.

Meets

TR 9:30am-10:45am

Lecture only. You also attend a discussion, listed below.

Final

Fri 11 Dec, 11:30am to 2:30pm

One exam for the whole class, Los Angeles time.

Read 3 hours ago.

Grades

3.37
predicted, this instructor · 2,836 grades

2,836 letter grades, Tung, N.C..

Read 31 minutes ago. This is a recent reading, not a live seat count.

Enroll on the registrar (opens in a new tab) Sign in to watch for an opening

Watching is the one thing here that needs an account, because an alert needs somewhere to go. Everything else on this page works signed out.

Put this class on a board

A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.

Before you can enroll

Registrar's Restrictions cell, read 3 hours ago: "Undergraduate Students Only".

Tell dibs what you have already taken and this line will say which of these you have. Your list.

From the registrar limited early, then open

Seats are held for entering students who enroll through New Student Orientation sessions beginning July 2, 2026. New student restrictions will be lifted on September 15, 2026 at 8 a.m. Wait lists are not possible because of the three-part structure (lecture, discussion, and laboratory). Students who retake Physics 5A must enroll in all three sections: lecture, discussion, and laboratory. Once enrolled, send an e-mail to mtran@physics.ucla.edu with your name, student ID number, and quarter in which you originally took the laboratory. You will be manually enrolled in the G99 laboratory. Any student attempting to hold a spot for another student is violating Student Conduct Code 102.23d and may be referred to the Office of the Dean of Students. See https://pa.ucla.edu/physics-and-astronomy-enrollment-information.html for more information.

The limit stands until 15 September, and lifts then. dibs still counts this class as one you can take, but not yet. This class is also Undergraduate Students Only, which that date does not lift.

Restrictions read 3 hours ago.

Discussions

You enroll in the discussion, not the lecture, so the seat figure above is the sum across all of them and can read open while every discussion you could actually join is full.

4 discussions, none open. There is no waitlist either, so the only way in is somebody dropping the lecture.

No discussion is open. Whatever the lecture reads, there is currently nothing here to enroll in.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm

Meets: TR 9:30am-10:45am

Renee and David Kaplan Hall A51

Grades

3.37
predicted, this instructor · 2,836 grades

Of the 5 other people in the grade record for PHYSICS 5A, the 2 with the most grades: BAUER, DAVID JEFFREY at 3.19 over 2,455 grades and SCHRIVER, DAVID at 3.86 over 1,286 grades.

A range
61%
P/NP
<1%
D/F/W
5.6%

Full grade history for PHYSICS 5A

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

Workload, light. 3.4 of 5 for Nathan Tung, where 5 is lightest. Read 30 days ago.

dibs has read this course’s reviews and none of them say what kind of work it sets, so dibs has nothing to show rather than a guess. Read from 226 reviews about 1 month ago. That is the reviewers being silent, and not a course that sets no work.

PHYSICS 5A reviews for Nathan Tung Reviews for all professors of PHYSICS 5A

Will it still be here

high risk chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 19021F
  • 18622W
  • 17022S
  • 18122F
  • 18323W
  • 17123S
  • 19723F
  • 18724W
  • 18324S
  • 18424F
  • 18425W
  • 18125S
  • 29725F
Enrollment by term: 21F 190, 22W 186, 22S 170, 22F 181, 23W 183, 23S 171, 23F 197, 24W 187, 24S 183, 24F 184, 25W 184, 25S 181, 25F 297

Peak 297 · most recent 25F at 297

Seats over time

Filled by 48 over about 2 months

300 of 300 · no seats left in its discussions
17 Aug 12:329 Sep 02:571 Oct 17:22
dibs read 168 of the 176 hours its hourly record covers, 95%, and did not look in 8. dibs had no hourly record before 24 Sep, which is the other 910 of 1086 plotted.300 of 300 enrolled at the newest reading, 31 minutes ago, and no seats left in its discussions. Seats from 17 Aug 12:32 to 1 Oct 17:22, 252 to 300. dibs read 168 of the 176 hours its hourly record here covers, 95%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 8 hours dibs was keeping a record and did not reach this section. Nothing before 24 September at 10:00, where this section's record starts, has a read either way, which is 910 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not: 31 minutes ago.

Show the readings (41)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 17:22 300 300 closed - 168 of 391, 215 no hourly record
15 Sep 11:32 300 300 closed - no hourly record
3 Sep 01:40 276 300 open - no hourly record
2 Sep 22:40 275 300 open - no hourly record
2 Sep 18:40 275 294 open - no hourly record
2 Sep 15:40 275 300 open - no hourly record
2 Sep 13:40 275 294 open - no hourly record
2 Sep 11:40 275 300 open - no hourly record
2 Sep 10:40 275 294 open - no hourly record
2 Sep 09:40 275 300 open - no hourly record
1 Sep 01:40 275 294 open - no hourly record
31 Aug 23:40 271 288 open - no hourly record
31 Aug 22:40 271 294 open - no hourly record
31 Aug 21:40 271 288 open - no hourly record
31 Aug 19:40 271 294 open - no hourly record
31 Aug 16:40 271 288 open - no hourly record
31 Aug 15:40 271 294 open - no hourly record
31 Aug 13:40 271 288 open - no hourly record
31 Aug 12:40 271 294 open - no hourly record
28 Aug 00:40 271 288 open - no hourly record
27 Aug 22:40 262 288 open - no hourly record
27 Aug 21:40 271 288 open - no hourly record
27 Aug 20:40 262 288 open - no hourly record
27 Aug 19:40 271 288 open - no hourly record
27 Aug 11:28 262 288 open - no hourly record
27 Aug 10:55 262 281 open - no hourly record
27 Aug 08:55 262 288 open - no hourly record
22 Aug 00:55 262 281 open - no hourly record
21 Aug 23:55 255 281 open - no hourly record
21 Aug 22:55 262 281 open - no hourly record
21 Aug 21:55 255 281 open - no hourly record
21 Aug 20:55 262 281 open - no hourly record
21 Aug 19:55 255 281 open - no hourly record
21 Aug 18:55 262 281 open - no hourly record
21 Aug 09:55 255 281 open - no hourly record
17 Aug 23:55 255 273 open - no hourly record
17 Aug 22:55 252 273 open - no hourly record
17 Aug 21:55 255 273 open - no hourly record
17 Aug 20:55 252 273 open - no hourly record
17 Aug 19:55 255 273 open - no hourly record
17 Aug 12:32 252 273 open - -
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

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