AP exams, 7 units
AP Physics C: Mechanics exam guide
Calculus-based mechanics across the seven units of the revised framework, from kinematics to oscillations.
Follows the fall 2024 course and exam description, from 14 May 2025
Overview
What AP Physics C: Mechanics covers.
AP Physics C: Mechanics is a calculus-based college physics course covering the same physical territory as AP Physics 1 at a higher mathematical level. Derivatives and integrals are used throughout: velocity and acceleration come from differentiating position, work comes from integrating force over displacement, and rotational inertia comes from integrating over a mass distribution.
The framework was revised effective fall 2024. It is organized into seven units that parallel the first seven units of AP Physics 1, and the exam grew from a 90-minute assessment to a full three hours with a longer multiple-choice section and four free-response questions. Gravitation is now developed within the dynamics and energy units rather than standing alone.
Arcade Academy is an independent study workspace. Because the framework and exam were revised recently, treat the official Course and Exam Description and exam page as authoritative for unit organization, published weightings, and current timing, and use the unit pages below to organize problem practice.
At a glance
- Total time
- 3 hours
- Section I
- 42 multiple-choice questions in 1 hour 25 minutes, 50% of the exam score
- Section II
- 4 free-response questions, 50% of the exam score
- Format update
- The multiple-choice count and per-section timing changed beginning with the May 2027 exam; confirm the current numbers on the official exam page
- Delivery
- Hybrid digital: multiple-choice questions are answered and free-response prompts are read in College Board's Bluebook app, and free-response answers are handwritten in a paper booklet
- Calculator
- Permitted on the exam; an equations and reference information sheet is provided
- Mathematics
- Calculus is used throughout, and calculus is a corequisite for the course
- Score scale
- 1 to 5
- Governing body
- College Board
- Who takes it
- High school students taking calculus concurrently or already, usually those heading toward engineering, physics, or another quantitative major.
Scoring
The multiple-choice and free-response sections each contribute half of a composite score, which College Board converts to the reported 1 to 5 scale using cut points set for that year's exam. Because AP Physics C: Mechanics and AP Physics C: Electricity and Magnetism are separate exams, each receives its own score, and colleges may grant credit for one without the other.
Exam structure
Units
AP Physics C: Mechanics covers 7 units. Open one for its topics, published weighting, and section-specific study tips.
Unit 1: Kinematics
Unit 1 recasts motion in the language of calculus. Position, velocity, and acceleration are related by differentiation and…
5 topics
Unit 2: Force and Translational Dynamics
Unit 2 develops Newton's laws with calculus-capable force models. Resistive forces that depend on velocity, such as air drag, are…
6 topics
Unit 3: Work, Energy, and Power
Unit 3 defines work as an integral of force over displacement, which lets the course handle position-dependent forces cleanly…
6 topics
Unit 4: Linear Momentum
Unit 4 develops momentum, impulse as the integral of force over time, and conservation of momentum for systems. Center-of-mass…
5 topics
Unit 5: Torque and Rotational Dynamics
Unit 5 rebuilds dynamics for rotating rigid bodies. Rotational inertia is computed by integration for continuous bodies, the…
6 topics
Unit 6: Energy and Momentum of Rotating Systems
Unit 6 applies conservation laws to rotation. Rotational kinetic energy, work done by a torque, angular momentum, and angular…
6 topics
Unit 7: Oscillations
Unit 7 treats simple harmonic motion as the solution of a differential equation rather than as a set of memorized results…
4 topics
Study strategies
How to work through this exam.
These strategies follow from the exam's own structure. Adapt them to the time you actually have each week.
- Practice using calculus as the default tool rather than as a special case, since problems with non-constant forces and continuous mass distributions are where this exam separates from the algebra-based courses.
- Derive rather than memorize wherever the derivation is short; the exam rewards students who can rebuild a relationship when the situation is unfamiliar.
- Work free-response questions in full under a timer, showing setup and reasoning, because partial credit follows the visible steps.
- Rehearse the standard derivations (rotational inertia by integration, terminal velocity, work from a variable force) until they can be reproduced quickly.
- Solve symbolically and check limiting cases, which catches errors and matches how many exam questions are framed.
- Treat the official Course and Exam Description as the source for unit organization and published weightings, since the framework was revised recently.
Common questions
AP Physics C: Mechanics questions students ask.
How is the AP Physics C: Mechanics Exam structured?
The exam runs 3 hours and is split evenly between a multiple-choice section worth 50% of the score and a free-response section of 4 questions worth the other 50%. The exam was lengthened in the revised framework, and the multiple-choice count and section timing changed again beginning with the May 2027 exam, so confirm current numbers on the official exam page.
How much calculus does the course actually require?
Calculus is used throughout and is a corequisite, meaning students are expected to take it concurrently if they have not already. Differentiation and integration appear in kinematics, work, rotational inertia, and oscillations, so comfort with both is more important than advanced technique.
Which parts do students find most challenging?
College Board does not rank difficulty. Students commonly report that velocity-dependent resistive forces, rotational inertia by integration, and combined rolling problems require the most practice. Use your own practice results to set priorities.
How is the exam scored, and is it separate from the Electricity and Magnetism exam?
The two sections combine into a composite score converted to the reported 1 to 5 scale using cut points set each year. AP Physics C: Mechanics and AP Physics C: Electricity and Magnetism are separate exams with separate scores, and colleges may grant credit for one without the other.
When do students usually start exam preparation?
A common approach is to work problems continuously through the year and then begin cumulative timed practice roughly two months before the exam. Since the course leans on calculus, keeping calculus skills current matters as much as reviewing physics content.
Is Arcade Academy affiliated with College Board?
No. AP® is a registered trademark of College Board, which was not involved in the production of, and does not endorse, this site. Arcade Academy is an independent educational resource.
Before you build the schedule
Exam structures change. Confirm the current format, eligibility, and policies with College Board before you commit to a study plan.
Official exam information opens in a new tabGuide structure last checked against official sources on August 30, 2026.
Markdown version of this guide for citation, offline reading, and language models.
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