Why is energy quantized but mass is not?
84440
Is (rest) mass quantized?
143668
Theoretical reasons for charge quantization
147676
Quantised Angular Momentum?
90716
Conservation of energy and wavefunctions
121320
Why is there conservation of kinetic energy in elastic collision and not in inelastic collision?
148029
What if Force was not Mass times Acceleration?
86439
Why do we ignore rotational energy in monatomic gases?
127393
When is temperature not a measure of the average kinetic energy of the particles in a substance?
45625
Is energy content of a system different depending on the observer?
82418
Why not drop $\hbar\omega/2$ from the quantum harmonic oscillator energy?
12847
If photons have no mass, how can they have momentum?
33126
Why does the Boltzmann factor $e^{-E/kT}$ seem to imply that lower energies are more likely?
105342
How did Planck arrive at the idea that energy is quantized?
45283
Why don't virtual particles violate conservation of mass/energy?
94615
Is the change in kinetic energy of a particle frame independent?
80719
What defines the mass of elementary particle?
140005
How will a particle with energy less than $V_{\rm min}$ behave?