Difference Between Gravitation and Gravity.Difference between Voltage Drop and Potential Difference.Difference between Momentum and Impulse.Difference between Buoyancy and Upthrust.Difference between Kinetic Energy and Potential Energy.Difference between Wavelength and Frequency.Difference Between Kinetics and Kinematics.Difference between Antenna Gain measured in dB and dBi.Difference between Coulomb Force and Gravitational Force.Difference between Inductive Reactance and Inductance.Difference between Static Friction and Dynamic Friction.Role of Mahatma Gandhi in Freedom Struggle.