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 What is Physics? Mechanics Electricity and Magnetism Electric Field Gauss' Law about below subjects Electric Potential Capacity Direct Current Magnetic Field Magnetic Field Laws Magnetic Interactions Electromagnetic Induction Maxwell's Equations Oscillations and Waves Simple Harmonic Motion Damped Harmonic Motion Driven Harmonic Motion Electric Oscillation Alternating Current Wave Motion Elastic Waves Electromagnetic Waves Optics Light Waves Geometrical Optics Interference Polarization Diffraction Fraunhofer Diffraction Dispersion, Absorption, Diffusion Doppler Effect Thermodynamics Ideal Gas Molecular Statistics Transport Phenomena First Law of Thermodynamics Second and Third Laws of Thermodynamics Imperfect Gas Liquids Solids Quantum Physics Thermal Radiation Quantum Properties of Light Wave Properties of Particles Planetary Model of Atom X-Rays Particle in Potential Well Pauli Exclusion Principle Nuclear Physics Solid State Physics Appendices

# SI Units and Symbols used in the Guide

 Subject Physical Quantity Symbol Name Unit Mechanics Mass m, M kilogram kg Linear position Length, Distance Radius x, r  l, d R meter m Time t, second s Linear angle, Angular position , radian rad Spherical angle steradian sr Area A - m2 Volume V - m3 Moment of inertia I - kg*m2 Density - kg/m3 Linear velocity v, u, c - m/s Angular velocity , - rad/s Linear momentum p - kg*m/s Angular momentum L - kg*m2/s Linear acceleration a - m/s2 Angular acceleration - rad/s2 Force F newton N=kg*m/s2 Torque - N*m Impulse I - N*s Work Energy W E joule J=N*m Power P watt W=J/s Dynamic viscosity - Pa*s Electricity and Magnetism Current I ampere A Charge Q, q, e coulomb C=A*s Current density j - A/m2 Volume charge density - C/m3 Surface charge density - C/m2 Linear charge density - C/m Electric potential Voltage emf V volt V=J/C Electric field E - N/C, V/m Electric flux - V*m Electric moment pe - C*m Resistance R, r ohm =V/A Specific resistance - *m Capacitance C farad F=C/V Specific conductivity - (*m)-1 Magnetic field B tesla T=N/(A*m) Magnetic flux weber Wb=T*m2=V*s Inductance Mutual-inductance L M henri H=Wb/A Magnetic moment pm - A*m2 Polarization P - C/m2 Magnetization I - A/m Thermodynamics Temperature T kelvin K Substance quantity M mole mol Pressure P - Pa Heat Q - J Heat capacity Entropy C S - J/K Specific heat c - J/(kg*K) Molar heat cm - J/(mol*K) energy flux j - W/m2 Surface tension - N/m Stress Elasticity modulus E pascal Pa=N/m2 Oscillations and Waves Wavelength - m Wave number k - m-1 Frequency f hertz Hz Energy density - J/m3 Energy flux J - J/m2 Intensity I - J/(m2*s) Reactance Impedance X Z ohm =V/A Optics Focal length f - m Luminous intensity I candela cd Luminous flux lumen lm=cd*m2 Illuminance E lux lk=lm/m2 Brightness L - cd/m2 Linear absorption coefficient - m-1 Quantum Physics Mass absorption coefficient - m2/kg Radioactive activity A becquerel Bq=s-1 Absorbed dose D gray Gy=J/kg