9 Physics Constants to Know

Part of the Physics I Workbook For Dummies Cheat Sheet

Physics constants, like the mass of a proton or speed of light, are physical quantities with fixed numerical values. This list contains the most common physics constants:

  • Avogadro's Number: NA = 6.022 × 1023 mol–1

  • Boltzmann's constant: k = 1.380 × 10–23 J/K

  • Coulomb's constant: k = 8.99 × 109 N–m2/C2

  • Gas constant: R = 8.314 J/(mol–K)

  • Gravitational constant: G = 6.672 × 10–11 N–m2/kg2

  • Speed of light: c = 2.997 × 108 m/s

  • Charge of electron: e = 1.602 × 10–19 C

  • Mass of proton: mp = 1.672 × 10–27 kg

  • Mass of electron: me = 9.109 × 10–31 kg

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Physics I Workbook For Dummies Cheat Sheet

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