Physical and Mathematical Constants

Random Science or Physics Quiz

Can you name the values of the following important physical and mathematical constants to two decimal places?

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Name and Common SymbolValueUnits
Bohr Radius (a_0)m
Universal Gravitational Constant (G)N*m^2/kg^2
Bohr Magneton (Mu_B)J/T
Square Root of 2Dimensionless
Speed of Light in Vacuum (c)m/s
Electron Mass (m_e)kg
Stefan-Boltzmann Constant (Sigma)W/(m^2*K^4)
Boltzmann Constant (k)J/K
Reduced Planck Constant (h-bar)J*s
Name and Common SymbolValueUnits
Permittivity of Free Space (Epsilon_0)F/m
Euler's Number (e)Dimensionless
Permeability of Free Space (Mu_0)N/A^2
Golden Ratio (Phi)Dimensionless
Rydberg Constant (R)m^-1
Proton Mass (m_p)kg
Planck Constant (h)J*s
Elementary Charge (e)C
Avogadro's Number (N_A)mol^-1
Fine Structure Constant (Alpha)Dimensionless

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