What Is AP Physics 2?
AP Physics 2 is an algebra-based, introductory college-level physics course that picks up where AP Physics 1 leaves off. It’s designed to be equivalent to a second-semester college physics course, covering topics you’d typically encounter in the latter half of a university physics sequence for life science majors, pre-med students, and other non-engineering STEM fields.
Unlike AP Physics 1’s focus on mechanics (motion, forces, energy, momentum), AP Physics 2 explores the broader universe of physics: fluids, thermodynamics, electricity and magnetism, optics, waves, and modern physics.
AP Physics 2 was introduced in 2015 alongside AP Physics 1, replacing the old AP Physics B exam. Both courses were designed to emphasize critical thinking, reasoning, and inquiry-based learning over rote memorization of formulas.
Who Should Take AP Physics 2?
AP Physics 2 is not a standalone course—it builds directly on concepts from AP Physics 1.
You should consider AP Physics 2 if:
- ✅ You have successfully completed AP Physics 1 (or an equivalent introductory physics course)
- ✅ You’re comfortable with algebra and basic trigonometry (calculus is NOT required)
- ✅ You’re taking or have completed precalculus (recommended, but not required)
- ✅ You’re in 11th or 12th grade and want to broaden your physics knowledge
- ✅ You’re planning to major in life sciences, pre-med, environmental science, or other STEM fields that don’t require calculus-based physics
- ✅ You want a strong AP science profile for university admissions but aren’t ready for the calculus-based Physics C sequence
Difficulty Level: What Makes It Challenging?
Many students find AP Physics 2 more challenging than AP Physics 1 due to the abstract nature of its topics.
Why Students Struggle
1. Abstract Concepts
Unlike the intuitive mechanics of Physics 1 (you can see a ball fall or a box slide), Physics 2 introduces invisible forces and fields. Electric fields, magnetic induction, and potential energy surfaces are real physical phenomena—but you can’t see them. This requires a higher level of conceptual abstraction.
2. Interconnected Topics
A single problem might combine thermodynamics, electric circuits, and optics—or connect blackbody radiation (modern physics) to thermal energy (thermodynamics). Success requires seeing the big picture, not just memorizing isolated formulas.
3. More Mathematical Rigor (Still Algebra-Based)
While you won’t use calculus, you’ll need:
- Proportional reasoning and algebraic manipulation
- Trigonometry (Snell’s law, vector components)
- Graph interpretation and data analysis
- Logarithms (for sound intensity and radioactive decay)
4. Laboratory Expectations
About 25% of class time is spent on hands-on, inquiry-based lab work. You’ll design experiments, collect data, analyze results, and defend your conclusions—skills that are directly tested on the FRQ section.
The Good News: Pass Rates Are Rising
Despite its difficulty, AP Physics 2 scores have shown consistent improvement.
| Year | 5 | 4 | 3 | 3+ | Mean Score |
|---|---|---|---|---|---|
| 2025 | 21.8% | 28.8% | 22.0% | 72.6% | 3.38 |
| 2024 | 19.1% | 18.0% | 33.4% | 70.5% | 3.20 |
| 2023 | 16.5% | 18.5% | 34.9% | 69.8% | 3.15 |
| 2022 | 16.3% | 18.1% | 35.3% | 69.7% | 3.14 |
| 2021 | 15.4% | 17.9% | 32.0% | 65.3% | 3.06 |
| 2020 | 14.0% | 24.3% | 35.0% | 73.3% | 3.20 |
Source: College Board official score distributions
Key takeaways:
- The 5 rate has more than doubled since 2015 (8.5% → 21.8%)
- The pass rate (3+) has improved from 55.6% to 72.6%
- Approximately 24,211 students took the exam in 2025, up from 20,533 in 2015
2026 Exam: Key Dates and Format
Exam Schedule
| Date | Time | Exam |
|---|---|---|
| Thursday, May 7, 2026 | 8:00 AM | AP Physics 2: Algebra-Based |
Source: College Board AP Exam Schedule
2026 Exam Format (Fully Redesigned)
Starting with the 2024-25 school year (May 2025 exams), all four AP Physics courses underwent a major redesign. The new format continues for the 2026 exam.
| Section | Question Type | Number of Questions | Time | Weight |
|---|---|---|---|---|
| Section I | Multiple-Choice (MCQ) | 40 questions | 80 minutes | 50% |
| Section II | Free-Response (FRQ) | 4 questions | 100 minutes | 50% |
*Source: College Board AP Physics Revisions 2024-25*
What changed from previous years:
- ✅ Fewer MCQs: Down from 50 to 40 questions
- ✅ No more multi-select questions: Every MCQ has exactly 4 answer choices (single answer)
- ✅ More time per question: 2 minutes per MCQ (up from 1.8 minutes)
- ✅ Fewer FRQs: Down from 5 to 4 questions
- ✅ More FRQ time: 25 minutes per question (up from 18 minutes)
- ✅ Four standardized FRQ types (see below)
The Four FRQ Types
All four FRQs follow predictable, standardized formats. Knowing these structures gives you a significant advantage.
| FRQ Type | Points | Time Recommendation |
|---|---|---|
| Experimental Design and Analysis | 12 points | 25 minutes |
| Qualitative/Quantitative Translation | 12 points | 25 minutes |
| Short Answer Question 1 | 7 points | 20 minutes |
| Short Answer Question 2 | 7 points | 20 minutes |
Total FRQ points: 38
Critical Tip: The College Board grants substantial partial credit on FRQs. Even if your final answer is wrong, showing correct equations, reasoning, and setup can earn you most of the points. Always show your work!
Course Content: Unit-by-Unit Breakdown
AP Physics 2 covers seven units (numbered 9 through 15, following the 8 units of AP Physics 1).
Unit Weight Chart (Multiple-Choice Section)
| Unit | Topic | Exam Weight | Priority |
|---|---|---|---|
| 9 | Thermodynamics | 15-18% | ⭐⭐⭐⭐⭐ |
| 10 | Electric Force, Field, and Potential | 15-18% | ⭐⭐⭐⭐⭐ |
| 11 | Electric Circuits | 15-18% | ⭐⭐⭐⭐⭐ |
| 12 | Magnetism and Electromagnetism | 12-15% | ⭐⭐⭐⭐ |
| 13 | Geometric Optics | 12-15% | ⭐⭐⭐ |
| 14 | Waves, Sound, and Physical Optics | 12-15% | ⭐⭐⭐ |
| 15 | Modern Physics | 12-15% | ⭐⭐⭐ |
Source: College Board AP Physics 2 CED
🔴 Priority Focus Areas (~50% of exam)
Unit 9: Thermodynamics (15-18%)
The study of heat, temperature, and thermal energy in contexts such as heat engines, heat pumps, and refrigerators.
Key topics:
- Ideal gas law (PV = nRT)
- First law of thermodynamics (ΔU = Q – W)
- Work done by/on a gas
- Entropy and the second law of thermodynamics
- Blackbody radiation and the Stefan-Boltzmann law (new for 2025)
Unit 10: Electric Force, Field, and Potential (15-18%)
Begin your study of electromagnetism by understanding electric charge and the forces between charged particles.
Key topics:
- Coulomb’s law (F = k q₁q₂ / r²)
- Electric fields (E = F/q)
- Electric potential energy and electric potential (voltage)
- Equipotential surfaces and field line mapping
- Capacitance and dielectrics
Unit 11: Electric Circuits (15-18%)
Examine the behavior of charged particles in circuits—the path that electric current travels.
Key topics:
- Current, resistance, and power (P = IV = I²R)
- Ohm’s law (V = IR)
- Kirchhoff’s laws (junction and loop rules)
- Series and parallel combinations
- RC circuits (charging and discharging)
- More comprehensive treatment of circuits (new for 2025)
🟠 High Priority (~25% of exam)
Unit 12: Magnetism and Electromagnetism (12-15%)
Build on your knowledge of electrostatic forces to explore the relationships between moving electric charges and the magnetic forces and fields they generate.
Key topics:
- Magnetic force on moving charges (F = qvB)
- Magnetic fields from current-carrying wires
- Faraday’s law of electromagnetic induction
- Lenz’s law (direction of induced current)
- Motional EMF and inductance
Strategy Tip: Many students postpone Unit 12 until late in their prep. Don’t make this mistake. It represents roughly one-eighth of your exam score. Faraday’s law and Lenz’s law are FRQ favorites.
🟡 Moderate Priority (~30% of exam)
Unit 13: Geometric Optics (12-15%)
How light interacts with materials and how images are formed by mirrors and lenses.
Key topics:
- Reflection and refraction (Snell’s law: n₁ sin θ₁ = n₂ sin θ₂)
- Thin lens equation (1/f = 1/d₀ + 1/dᵢ)
- Mirror equation
- Sign conventions (critical for getting the right answer!)
Unit 14: Waves, Sound, and Physical Optics (12-15%)
The study of waves, including ways to quantify amplitude, wavelength, period, frequency, and wave speed. Previously covered in AP Physics 1—now part of Physics 2.
Key topics:
- Wave properties (speed, frequency, wavelength)
- Sound waves and the Doppler effect
- Standing waves and resonance
- Diffraction and interference
- Single-slit and double-slit diffraction
- Diffraction gratings
Unit 15: Modern Physics (12-15%)
Concepts of modern physics that resolve conflicts Newtonian physics couldn’t answer.
Key topics:
- Photons and the photoelectric effect
- Compton scattering (new for 2025)
- Atomic spectra and energy levels
- Nuclear decay (alpha, beta, gamma)
- Binding energy and mass-energy equivalence (E = mc²)
AP Physics 2 vs. AP Physics 1: Key Differences
AP Physics 2 is not “harder Physics 1″—it’s a different set of topics that builds on the foundation you built in Physics 1.
| Aspect | AP Physics 1 | AP Physics 2 |
|---|---|---|
| Focus | Mechanics (motion, forces, energy, momentum) | Fluids, thermodynamics, E&M, optics, modern physics |
| Math Level | Algebra, trigonometry | Algebra, trigonometry (more sophisticated) |
| Prerequisite | None (or concurrent Algebra II) | AP Physics 1 or equivalent |
| Difficulty | Challenging (abstract reasoning) | Challenging (abstract + invisible fields) |
| Best For | First-time physics students | Students continuing their physics journey |
The Big Change (2025 Redesign):
- Fluids moved from AP Physics 2 → AP Physics 1 (Unit 8)
- Waves and sound moved from AP Physics 1 → AP Physics 2 (Unit 14)
- Geometric and physical optics split into two separate units
How AP Physics 2 Compares to AP Physics C
| Aspect | AP Physics 2 | AP Physics C (Mechanics + E&M) |
|---|---|---|
| Math | Algebra-based | Calculus-based (derivatives + integrals) |
| Depth | Broad coverage, moderate depth | Narrower focus, greater mathematical depth |
| Topics | Fluids, thermo, optics, modern physics + E&M | Mechanics only (C: Mech) or E&M only (C: E&M) |
| Target Audience | Life sciences, pre-med, environmental science | Engineering, physics, computational STEM |
| Pass Rate (3+) | ~72% | ~72-76% |
| 5 Rate | ~22% | ~23-27% |
Top 5 Mistakes That Cost Students a 5
1. Ignoring the new FRQ structure
The 2025 redesign introduced four standardized FRQ types with predictable scoring rubrics. Students who don’t study these patterns miss easy points.
Fix: Practice each FRQ type separately before mixing them in full tests.
2. Memorizing formulas without understanding concepts
Physics 2 heavily emphasizes why formulas work and when to apply them. Raw memorization without conceptual understanding will sink you on the abstract topics (fields, induction, modern physics).
Fix: Before using a formula, explain to yourself (out loud) what each term represents physically.
3. Skipping Unit 12 (Magnetism) until the last week
Faraday’s law and Lenz’s law are FRQ favorites. Many students postpone this unit—and regret it.
Fix: Study Unit 12 in Month 2, not Month 3.
4. Not showing work on FRQs
Writing only final answers earns zero points. Even if your final answer is wrong, you can earn most of the points by showing correct equations, substitution, and reasoning.
Fix: Use the PEAR framework for FRQs:
- P — Physics principle (state the law)
- E — Equation (write the correct formula)
- A — Application (explain how it applies)
- R — Result (state your conclusion with units)
5. Neglecting the “Experimental Design” FRQ
Many students focus only on calculation-heavy problems and neglect the experimental design question (worth 12 points).
Fix: Practice designing experiments, identifying variables, and evaluating data collection methods.
Resources for Success
Official Resources
- College Board AP Physics 2 Course Page: Download the full Course and Exam Description (CED) .pdf — the complete framework for everything tested
- AP Classroom: Access progress checks, question banks, and personalized feedback
- Past FRQs: Available on AP Central with scoring guidelines and sample responses
Recommended Prep Books (2026 Edition)
- 5 Steps to a 5: AP Physics 2 2026 — Fully updated for the redesigned exam format
- Princeton Review: AP Physics 2 Premium Prep 2026 — Includes 3 full-length practice tests
Free Online Resources
- Albert.io AP Physics 2: Practice questions organized by unit with detailed explanations
- Wiingy AP Physics 2 Resource Center: Unit summaries and exam tips
- Khan Academy: AP Physics 2 course (free, aligned to College Board framework)
Formula Sheet Strategy
The official formula sheet will be provided during the exam. You don’t need to memorize every formula—but you must know:
- Which formulas are provided
- What each symbol means
- When to apply each formula
- Which formulas are not provided (and therefore must be memorized)
Frequently Asked Questions
Q: Is AP Physics 2 harder than AP Physics 1?
A: Many students find AP Physics 2 more conceptually challenging because topics like electric fields, magnetic induction, and quantum phenomena are abstract and invisible. However, the redesigned exam (with more time per question and standardized FRQ types) has made the exam more manageable. Pass rates have steadily improved from 55.6% in 2015 to 72.6% in 2025.
Q: Can I take AP Physics 2 without taking AP Physics 1 first?
A: Not recommended. AP Physics 2 assumes you’ve mastered the problem-solving approaches and laboratory skills from Physics 1. The courses are sequential by design.
Q: What math do I need?
A: Algebra and basic trigonometry. Calculus is not required or used. Precalculus is recommended but not required.
Q: Can I use a calculator on the AP Physics 2 exam?
A: Yes. Scientific calculators are permitted for both the MCQ and FRQ sections. Graphing calculators are also allowed but not necessary.
Q: What’s the difference between AP Physics 2 and AP Physics C: Electricity and Magnetism?
A: AP Physics 2 covers many topics (thermodynamics, optics, modern physics, and E&M) using algebra. AP Physics C: E&M covers only electricity and magnetism but in much greater mathematical depth using calculus. Physics C is intended for engineering and physics majors.
Q: What topics were removed from AP Physics 2 in the 2025 redesign?
A: Fluids moved to AP Physics 1. Special relativity and quantum wave functions were removed (though E=mc² and the photoelectric effect remain).
Q: What topics were added?
A: Full treatment of waves (mechanical waves, standing waves, sound waves, and Doppler effect) moved from Physics 1 to Physics 2. Blackbody radiation and Compton scattering were added.
Final Thoughts
AP Physics 2 is a challenging but rewarding course. It introduces you to the most fascinating areas of physics—from the quantum behavior of photons to the electromagnetic fields that power modern technology.
The redesigned 2026 exam works in your favor:
- More time per question (2 minutes per MCQ, 25 minutes per FRQ)
- Fewer total questions (40 MCQs, 4 FRQs)
- Predictable FRQ formats (learn the patterns, earn the points)
- Generous partial credit (show your work even when unsure)
The dramatic improvement in pass rates (55.6% → 72.6%) proves that strategic preparation pays off. Focus on the heavily weighted units (Thermodynamics, Electric Force/Field, and Circuits), master the four FRQ types, practice the timing, and you’ll be well-positioned for success on May 7, 2026.