AP Physics 1 exam review: format, the 8 units, and how to study
The AP Physics 1 exam is 3 hours long: 42 multiple-choice questions answered in College Board’s Bluebook app, then 4 free-response questions you handwrite in a paper booklet. The two halves are worth the same.
What’s on the AP Physics 1 exam?
The exam runs 3 hours and the two sections count for half your score each. Section I is 42 multiple-choice questions in 85 minutes, taken on a computer or tablet in College Board’s Bluebook app; the questions come either singly or in sets built around one stimulus or data set. Section II is 4 free-response questions in 95 minutes. You read those in Bluebook too, but you handwrite your answers in a paper booklet the proctor provides.
| Section | Questions | Timing | Share of score |
|---|---|---|---|
| I (multiple choice) | 42 | 85 minutes | 50% |
| II (free response) | 4 | 95 minutes | 50% |
| Total | 46 | 3 hours | 100% |
Those numbers are the current ones and they changed recently. College Board took the multiple-choice section from 40 questions in 80 minutes to 42 in 85, and shortened the free-response section from 100 minutes to 95, effective with the May 2027 exam. So if a guide you are reading still says 40 questions in 80 minutes, it is not making things up; it is describing the previous edition. The current figures are on College Board’s own exam page.
The four free-response questions
Section II is not four generic problems. The four question types are fixed, they appear in the same order every year, and they are worth 40 points between them. College Board publishes a suggested time for each one, and the four suggestions total 85 to 105 minutes against a 95-minute section, so the upper ends do not all fit.
| Question | Type | Points | Suggested time |
|---|---|---|---|
| 1 | Mathematical Routines | 10 | 20–25 minutes |
| 2 | Translation Between Representations | 12 | 25–30 minutes |
| 3 | Experimental Design and Analysis | 10 | 25–30 minutes |
| 4 | Qualitative/Quantitative Translation | 8 | 15–20 minutes |
All four ask you to justify a claim in words, and College Board defines justifying as reasoning that goes past the derivation itself. That is why memorizing equations is not enough on this paper.
A four-function, scientific, or graphing calculator is allowed on both sections, and Bluebook has a Desmos scientific and graphing calculator built in, so you are covered even if you do not own one. The equation sheet is provided as well, inside Bluebook and printed for the free-response booklet, so you are never asked to recall a formula from memory. Our AP Physics 1 equation sheet lists exactly what you get on test day.
The 8 units of AP Physics 1
AP Physics 1 is algebra-based, has no calculus prerequisite, and covers roughly the first semester of a college physics course across 8 units. The Fall 2024 redesign added Fluids as a full eighth unit, so older guides that show seven units are out of date.
The units are not weighted evenly, and the weighting College Board publishes is a share of the multiple-choice section rather than of your exam score. Units 2 and 3 are jointly the heaviest.
How AP Physics 1 is scored
Your 42 multiple-choice answers and your 4 free-response questions are combined into a single raw composite score, which College Board converts to a 1–5 score each year. The cutoffs move slightly from year to year because they are set after the exam, so a 5 is not a fixed percentage, and College Board does not publish a conversion table.
That is the mechanism rather than the odds. For the odds — what share of students score a 3 or higher, how many 5s there are, and how the four physics exams compare — our page on is AP Physics 1 hard carries College Board’s published distributions. To see what a given raw score turns into, run the numbers through our AP Physics 1 score predictor, remembering that its cutoffs are estimates and not College Board’s.
How to study for AP Physics 1
Start by learning the reasoning behind each relationship rather than the symbols. Because the equation sheet is provided, points come from knowing when a formula applies and being able to justify it, not from recall.
Give experimental design its own practice time. Creating experimental procedures is examined only on the free-response section and never on the multiple choice, and the wider science practice it belongs to (applying a law to make a claim, justifying that claim with evidence, and designing the procedure in the first place) carries 35 to 45 percent of the free-response score. If everything you practice is calculation, that is the part you are leaving out.
Practice the free-response section out loud and on paper, since explaining your steps in writing is exactly what the graders reward. Work old free-response questions under a timer, then check your structure against our AP Physics 1 FRQ guide. Drill one unit at a time using our AP Physics 1 Progress Check answers, and keep our AP Physics 1 cheat sheet next to you for fast review in the final week.
When is the AP Physics 1 exam, and how long is it?
AP Physics 1 is given once a year during College Board’s May testing window, usually in early to mid-May. The exam itself takes 3 hours: 85 minutes of multiple choice, then 95 minutes of free response. College Board sets the exact date and start time each year, so confirm the current-year schedule on the official AP calendar with your AP coordinator before you plan around it.
Scores are released online in July. College Board announces the exact release date in the spring of the exam year, so treat any earlier date you see as a guess.
If you are sitting more than one exam this season, our AP study guides cover every subject the same way.
Frequently asked questions
Quick answers, checked against College Board.
How many questions are on the AP Physics 1 exam?
There are 46: 42 multiple-choice questions and 4 free-response questions. The multiple-choice questions come either singly or in sets built around one stimulus or data set, so the count of scenarios you have to read is lower than 42.
How long is the AP Physics 1 exam?
The exam takes 3 hours, split 85 minutes for the multiple-choice section and 95 minutes for the free response. The shorter section holds far more questions, so the pacing is completely different in each.
Is the AP Physics 1 exam digital?
Partly. College Board calls it a hybrid digital exam: you answer the multiple-choice questions and read the free-response questions in the Bluebook app, then handwrite your free-response answers in a paper booklet that is collected and scored.
How many units are on AP Physics 1?
There are 8, since the Fall 2024 redesign added Fluids. They are not weighted evenly: Force and Translational Dynamics and Work, Energy, and Power are jointly the heaviest at 18 to 23 percent of the multiple-choice section each, while Oscillations and rotating systems are 5 to 8 percent each.
Is a calculator allowed on AP Physics 1?
Yes, on both sections. You may bring a four-function, scientific, or graphing calculator, and Bluebook also has a Desmos scientific and graphing calculator built in, so you are covered if you do not own one. The equation sheet is provided as well.
Is a 70% a 5 on AP Physics 1?
There is no published answer to that. College Board sets the score boundaries after each administration and does not publish a raw-to-1-5 conversion table, so any percentage you see quoted is somebody’s estimate rather than an official cutoff. That includes the cutoffs in our own score calculator, which we label as estimates.
Is AP Physics 1 hard?
The algebra is not the hard part. Every free-response question asks you to justify a claim in words, and College Board defines justifying as reasoning that goes beyond the derivation itself. For what the scores actually look like, our page on is AP Physics 1 hard carries College Board’s published distributions.