IB Physics
Data Booklet Summary
All constants and formulas from the IB Physics data booklet. Quick reference for exams.
Physical Constants
Fundamental Constants
| Constant | Value | Unit |
|---|---|---|
| Speed of light (c) | 3.00 × 10⁸ | m s⁻¹ |
| Planck's constant (h) | 6.63 × 10⁻³⁴ | J s |
| Elementary charge (e) | 1.60 × 10⁻¹⁹ | C |
| Electron mass (mₑ) | 9.11 × 10⁻³¹ | kg |
| Proton mass (mₚ) | 1.67 × 10⁻²⁷ | kg |
Mechanics
Kinematics
v = u + at
s = ut + ½at²
v² = u² + 2as
s = ½(u + v)tForces
F = ma
W = mg
F = kx (Hooke's law)
p = mv (momentum)Energy
KE = ½mv²
PE = mgh
Work = Fd cos θ
Power = W/t = FvWaves
Wave Equations
v = fλ
T = 1/f
v = √(T/μ) (string)
v = √(B/ρ) (fluid)Optics
n₁ sin θ₁ = n₂ sin θ₂
1/f = 1/v + 1/u
M = -v/u (magnification)Electricity
Circuits
V = IR (Ohm's law)
P = IV = I²R = V²/R
Rₛ = R₁ + R₂ + ... (series)
1/Rₚ = 1/R₁ + 1/R₂ + ... (parallel)Fields
F = kQq/r² (Coulomb)
E = F/q = kQ/r²
V = Ed (uniform field)
C = Q/V = ε₀A/dDownload
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