Free forever Calculate score
Phys 1 · Progress Checks

AP Physics 1 Progress Check walkthroughs.

Unit-by-unit explanations of the MCQ and FRQ content on AP Classroom Progress Checks. Each unit page shows the topics tested, the most common student mistakes, and a tip from someone who scored a 5.

Updated July 2025 Written by Mahmudul Hasan Free · No signup
8 units

All units, expandable.

Click a unit to see MCQ topics, FRQ structure, common mistakes, and a tip from a student who scored a 5.

U01Kinematics22 questions covered · MCQ + FRQ walkthroughs
MCQ guidance
  • 1-D motion
  • 2-D motion
  • Vectors
FRQ guidance
  • Position-time graph FRQs
Common mistake
Mixing up displacement vs. distance on FRQ part-c questions.
Tip from a 5-scorer
Slope = velocity, area = displacement. Always.
U02Dynamics: Forces and Newton’s Laws24 questions covered · MCQ + FRQ walkthroughs
MCQ guidance
  • Free-body diagrams
  • Friction
  • Apparent weight
FRQ guidance
  • Atwood machine analysis
Common mistake
Forgetting to draw the FBD before writing F=ma.
Tip from a 5-scorer
Draw the FBD, write F=ma per object, then solve. No shortcuts.
U03Circular Motion and Gravitation20 questions covered · MCQ + FRQ walkthroughs
MCQ guidance
  • Uniform circular
  • Universal gravitation
  • Orbits
FRQ guidance
  • Banked-curve problems
Common mistake
Treating centripetal force as a separate force instead of a net force.
Tip from a 5-scorer
Centripetal = net inward, not a new force to add.
U04Energy24 questions covered · MCQ + FRQ walkthroughs
MCQ guidance
  • Work-energy theorem
  • Conservation
  • Power
FRQ guidance
  • Energy conservation in roller-coaster scenarios
Common mistake
Forgetting to account for friction in energy bar charts.
Tip from a 5-scorer
Bar charts always include the lost-to-heat term explicitly.
U05Momentum22 questions covered · MCQ + FRQ walkthroughs
MCQ guidance
  • Impulse
  • Conservation
  • Collisions
FRQ guidance
  • Elastic vs. inelastic
Common mistake
Assuming elastic collisions always conserve KE — they do; inelastic don’t.
Tip from a 5-scorer
Both conserve momentum. Only elastic conserves KE.
U06Simple Harmonic Motion16 questions covered · MCQ + FRQ walkthroughs
MCQ guidance
  • Springs
  • Pendulums
  • Energy in SHM
FRQ guidance
  • Period derivation from F=ma
Common mistake
Conflating amplitude and period.
Tip from a 5-scorer
Amplitude doesn’t affect period (for ideal SHM).
U07Torque and Rotational Motion20 questions covered · MCQ + FRQ walkthroughs
MCQ guidance
  • Angular kinematics
  • Rotational inertia
  • Angular momentum
FRQ guidance
  • Conservation of angular momentum
Common mistake
Forgetting that I changes when mass distribution shifts.
Tip from a 5-scorer
When a skater pulls arms in, I decreases, ω increases.
U08Electric Charge and Circuits22 questions covered · MCQ + FRQ walkthroughs
MCQ guidance
  • Coulomb’s law
  • Circuits
  • Kirchhoff’s laws
FRQ guidance
  • Multi-loop circuit FRQs
Common mistake
Mixing series and parallel resistance formulas.
Tip from a 5-scorer
Series: add. Parallel: 1/R_total = sum of 1/R.
Make it count

Pair the walkthrough with the calculator.

Practice loop
Do a Progress Check. Score yourself. Adjust.

After each unit, plug your AP Classroom score breakdown into the calculator. You’ll see your trajectory in real numbers, not vibes.

Open Phys 1 calculator

Frequently asked questions

Quick answers — written by humans, not a chatbot.

What's the difference between Phys 1 Progress Checks and the real AP exam?

Progress Checks are unscaled — they’re unit-by-unit MCQ + FRQ practice that AP Classroom assigns. The real AP exam uses a curve to map your raw composite to a 1–5. The walkthroughs above explain the reasoning; the calculator estimates your exam score.

Should I do every Progress Check or skip around?

Do them in order the first time — each one builds on the last. If you’re reviewing in May, target the units where you’re weakest using the unit summaries above.

Why don't you publish exact answer keys?

AP Classroom assignments are graded as your own work. Posting raw keys would help cheaters and harm the students using Curve for actual studying. Our walkthroughs explain reasoning, not letter answers.

Related

Keep going.

Scroll to Top