The free response section is half of your AP Physics C: Mechanics score and the part most students underprepare for. Under the post-2025 redesign, there are four FRQs with named task types, each testing a distinct skill, for a total of 40 rubric points in 100 minutes. Because this is a calculus-based course, expect to set up and evaluate derivatives and integrals, not just plug into algebraic formulas. This page breaks down the format, what each task type wants from you, and the scoring patterns that show up year after year in the rubrics.
FRQs
4
One of each task type
Time
100 min
Roughly 25 min each
Rubric points
40
Split varies by year
Section weight
50%
Equal with MCQ
The four task types
FRQ Section II
The section is worth 40 rubric points across four questions. The point value of each individual question is not fixed year to year. The numbers below are approximate figures from the 2025 administration, shown to give a sense of relative weight; do not treat them as guaranteed for 2026.
01
Mathematical Routines
~10 pts in 2025 (estimate) · Symbolic and numeric problem solving
Use physics principles to analyze a scenario and predict an outcome. You will be expected to derive a relationship symbolically, often by setting up and evaluating a derivative or integral, plug in to compute a numeric answer, and support your claim with appropriate equations and reasoning.
Show starting equations before plugging in. Substituting numbers first costs setup points.
Set up the calculus explicitly. When a quantity varies, write the integral or derivative and its limits before evaluating; the setup is often its own scoring point.
Include units in every numerical answer. Rubric points are explicitly tied to correct units.
02
Translation Between Representations
~12 pts in 2025 (estimate) · Connecting graphs, diagrams, and math
Move fluently between graphs, free-body diagrams, motion diagrams, energy bar charts, and equations. The same physical situation is presented in one form; you must redraw or translate it into another and use both to reason quantitatively.
FBD lengths must reflect relative magnitudes. A normal force longer than gravity on a level surface loses points immediately.
Label every axis with a quantity and a unit. Unlabeled graphs cost easy points.
Match slopes and areas to the calculus. Slope of an x-vs-t graph is a derivative; area under a-vs-t or F-vs-t is an integral. The units must check out.
03
Experimental Design and Analysis
~10 pts in 2025 (estimate) · Designing a procedure and analyzing data
Design a lab procedure to test a stated relationship, identify what to measure with what equipment, then analyze data to draw a conclusion. Often involves linearization: rewriting an equation so plotting the right pair of variables produces a straight line.
Name specific equipment and what each piece measures (motion sensor for velocity, photogate for time interval).
State what you would vary, what you would hold constant, and what you would measure.
Linearize when asked. "Plot v squared vs h and the slope should equal 2g" is the kind of answer the rubric rewards.
04
Qualitative/Quantitative Translation
~8 pts in 2025 (estimate) · Explanation backed by math
Explain a physical phenomenon in words, then back it up with a mathematical relationship. The paragraph response is graded against a published rubric that lists each scoring point individually.
Use Claim, Evidence, Reasoning structure. State the claim, cite the equation or principle, explain why it applies here.
Address the prompt directly. Vague restatements of physics concepts without tying them to the scenario score nothing.
If two scenarios are compared, your paragraph must reference both explicitly.
Five FRQ scoring patterns that show up every year
Drawn from published College Board rubrics
Setup before substitution. Every Mathematical Routines and Translation FRQ awards a point for citing the starting equation in symbols. Skip this and you cap your score before you compute anything.
FBD direction and length both score. Forces drawn in correct direction earn one point; correct relative magnitudes earn another. Treat them as two separate skills.
"Justify your answer" means cite physics. An answer with no justification scores zero on those parts even if numerically correct. Write the principle by name (conservation of momentum, work energy theorem) and tie it to the scenario.
Linearization is testable. Roughly half of Experimental Design FRQs ask you to identify what to plot to get a straight line. Practice rewriting equations into y equals m x plus b form.
Sign convention matters. Work, displacement, and momentum can be negative; kinetic energy cannot. Mixing these up is the most common single-point loss on Mathematical Routines questions.
Released FRQs and scoring guides
Official College Board materials
The College Board posts each year's FRQs along with scoring guidelines and sample student responses on AP Central. Work through at least the most recent three administrations. For pre-2025 FRQs, note that the exam moved to the four named task types and a calculator-on-both-sections policy; the underlying calculus-based mechanics is unchanged, so older problems remain strong practice even where the format differs.
Because AP Physics C: Mechanics is calculus-based, prioritize released problems that ask you to set up an integral or derivative, not just released items that happen to share a topic name with an algebra-based course.
Stop losing FRQ points to the same misconceptions
FRQ losses are rarely about not knowing the formula. They are almost always about a specific misconception: integrating a variable force without setting up correct limits, confusing average and instantaneous velocity, or applying conservation of energy when a nonconservative force is doing work. Diagnose which ones are costing you points.
Four. Under the post-2025 redesign, the AP Physics C: Mechanics free response section has four FRQs, one of each named task type: Mathematical Routines, Translation Between Representations, Experimental Design and Analysis, and Qualitative/Quantitative Translation. Together they are worth 40 rubric points across 100 minutes.
How much is each FRQ worth?
The section totals 40 rubric points, but the point value of each individual question is not published as a fixed rule and can shift year to year. In 2025 the four questions were worth roughly 10, 12, 10, and 8 points respectively. Treat those figures as approximate estimates rather than guaranteed 2026 values. The FRQ section as a whole contributes 50 percent of your composite score.
How long should I spend on each FRQ?
The section is 100 minutes for four questions, so roughly 25 minutes each is a reasonable target. Adjust based on how many independent parts each question has; the Experimental Design question often benefits from a little extra time.
Do I have to write paragraph-form responses?
The Qualitative/Quantitative Translation FRQ requires a written paragraph response that follows a Claim, Evidence, Reasoning structure. Other FRQs may include short justification prompts. Bullet points are acceptable for shorter justifications, but the paragraph response is graded as connected prose.
Do I need calculus on the FRQs?
Yes. AP Physics C: Mechanics is calculus-based, and FRQs regularly require you to set up and evaluate derivatives and integrals, for example integrating a variable force to find work or differentiating a position function to find velocity and acceleration. Showing the calculus setup is frequently its own scoring point.
Are the 2025 AP Physics C: Mechanics FRQs released?
Yes. The 2025 administration FRQs and scoring guidelines are posted on AP Central. These are the most recent FRQs that reflect the current four-task-type format and are the highest-fidelity practice you can do.
