Question 1
Point P is 0.20 m from a +4.0 nC charge and 0.30 m from a −2.0 nC charge, as shown. What is the electric potential at P?
The AP Physics 2 equation sheet
On both sections, in Bluebook and on paper: the constants, the exam's conventions and every unit's core equations.
| Coulomb constant | k = 9.0 × 10⁹ N·m²/C² |
|---|---|
| Elementary charge | e = 1.60 × 10⁻¹⁹ C |
| Planck's constant | h = 4.14 × 10⁻¹⁵ eV·s; hc = 1240 eV·nm |
| Work sign | W = −PΔV is work done on the gas |
On the sheet
- Electricity: Coulomb's law, field, potential, capacitance, resistance, series and parallel, τ = RC.
- Magnetism: F = qvB sin θ, B near a wire, flux, Faraday's law, ε = Bℓv.
- Thermal: PV = nRT, average kinetic energy, conduction, ΔU = Q + W, Q = mcΔT.
- Waves and optics: Snell's law, the lens and mirror equation, slits, string waves, beats.
- Modern: E = hf, λ = h/p, Wien's law, the photoelectric equation, Compton shift, decay.
Not on it
- The Doppler formula; Doppler questions are qualitative.
- Thin-film conditions; you work out the phase changes yourself.
Try 2 questions
Question 2
A 12 V battery is connected as shown: R₁ and R₄ are in series with the parallel pair R₂ and R₃. The potential difference across R₁ is 3.0 V and across R₄ is 4.0 V. What is the potential difference across R₂?
FAQ
Do you get an equation sheet on the AP Physics 2 exam?
Yes, for both sections, including a printed booklet you may write on.
Is the photoelectric equation on the AP Physics 2 equation sheet?
Yes: Kmax = hf − φ, with h in both J·s and eV·s.