By an electric charge model of static type, with spherical distribution of field quanta, periodically emitted, and by the Galilean relativity, there are re-obtained the Lorentz's expressions of the speed-depending longitudinal and transversal mass of a charged particle accelerated by a quanta flux pressure, as apparent effect generated by a real decreasing of the values of longitudinal and transversal electric field, E L ∼ γ -3 ; E T ∼ γ -1 , ( · γ = 1/√(1 -v 2 /c 2 ), being re-obtained also the general form of the Doppler-Fizeau effect. The invariance of the Lorentz force expression indicates a relativist variation of the magnetic field induction, in the form: B ∼γ -1 , which explains the experimental result of the Kaufmann-Bucherer experiments. It is proposed a classical expression of mass and charge variation, in the form: m = m o /α; q = q o /α, (α = (1 -v 2 /2c 2 )), which may results as real variation by a significant density of a super-fluid medium of the quantum vacuum containing etherons (m g , s = 10 -60 ÷10 -70 kg) and quantons (m h = h·1/c 2 = 7.37x10 -51 kg), by an relativist etherono-quantonic vortex Γ r (v) which is added to the similar vortex Γ µ (v) of the particle's magnetic moment which is increased with the speed, if the particle's spin is rectangular to its impulse.The explicative model may explain also the photon's energy in correlation with its electromagnetic properties.