Master AP Physics 2: 186 Flashcards from the Ideal Gas Law to Nuclear Binding Energy
186 AP Physics 2 flashcards on thermodynamics, circuits, optics and nuclear decay: the nine study blocks, the missing fluids unit and three card fixes.

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Deck LL4927 — AP Physics 2 is a 186-card sweep of the second-year curriculum, written almost entirely as definition questions: 150 of the 186 fronts begin with What is. It drills the vocabulary and the equation sheet — most of the multiple-choice section — but it will not teach you to reason through a free-response prompt.
Study this deck: AP Physics 2
1 / 10What is the first law of thermodynamics?
Tap the card for the answer · swipe right if you knew it, left if not
| Front | Back |
|---|---|
| State the ideal gas law equation | PV = nRT |
| What is Carnot efficiency? | η = 1 − (T_c/T_h), in Kelvin |
| How do capacitors combine in series? | 1/C_total = 1/C₁ + 1/C₂ + …, reciprocals add (opposite to resistors) |
| What is the time constant of an RC circuit? | τ = RC — 63% of maximum charge |
| What is the radius of circular motion for a charge in a magnetic field? | r = mv/(qB) |
| What is the critical angle? | θ_c = arcsin(n₂/n₁) |
| What is the condition for constructive interference in double-slit? | d·sinθ = mλ |
| What is Einstein's photoelectric equation? | KE_max = hf − φ |
| What are the energy levels in hydrogen atom? | E_n = −13.6 eV/n² |
The nine blocks, in order
The cards run in a clean sequence you can slice into study sessions: thermodynamics (0–22: isothermal, adiabatic, isobaric, isochoric, PV diagrams, entropy, kinetic theory, heat engines, Carnot, COP) → electrostatics (23–37: Coulomb's law, field lines, potential, equipotentials, flux, Gauss's law, conductors, dielectrics) → circuits (38–56: Ohm, resistivity, series/parallel, Kirchhoff's two rules, capacitance, parallel-plate, RC charging and discharge) → magnetism and induction (57–81: qvBsinθ, right-hand rules, BILsinθ, solenoids, μ₀, Faraday, Lenz, motional EMF) → geometric optics (82–102: Snell, total internal reflection, dispersion, mirror and thin-lens equations, every image case) → waves (103–125: superposition, standing waves, harmonics, resonance, Doppler) → physical optics (126–138: Huygens, Young's double slit, single-slit minima, gratings, polarisation, Malus, Brewster) → quantum (139–165: work function, de Broglie, uncertainty, Bohr, Lyman and Balmer, Wien, Stefan-Boltzmann, Compton, pair production) → nuclear (166–185: Z and A, isotopes, alpha/beta-minus/beta-plus/gamma decay, half-life, mass defect, binding energy, fission and fusion).
The gap you must fill yourself
There is not a single fluids card. No density, no pressure-with-depth, no Pascal's principle, no Archimedes, no continuity equation, no Bernoulli — and fluids is a full unit of AP Physics 2. Write ten fluid cards of your own before exam week, or you walk in blind on the one topic the deck never mentions.
In the other direction, cards 77–81 (self-inductance, ε = −L·dI/dt, U = ½LI², RL time constants) are not on the AP Physics 2 equation sheet — that is AP Physics C territory, so low priority. The wave block, 103–125, is AP Physics 1 review; if it is solid, suspend it and buy yourself two sessions.
Three fixes before you drill
- Card 1 says entropy always increases. The precise statement is never decreases — it stays constant for a reversible process, which is the whole point of the Carnot cycle you meet nineteen cards later.
- The work card gives W = PΔV, work done by the gas. The AP first law is written ΔU = Q + W with W done on the gas, so the sign flips. Write the convention onto the card now, not during the exam.
- The last two cards, on why fission and fusion both release energy, carry identical backs. Rewrite one: light nuclei climb toward iron-56 from below, heavy nuclei fall toward it from above.
Find deck LL4927 in the Flip It library at flip-it.app. For the quantum and nuclear third, the modern physics deck goes deeper; for another AP subject built the same way, see the AP US History study guide.
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