Electromagnetic Waves (Physics)

Recall cards on electromagnetic waves. Maxwell's equations: the displacement current that completes Ampere's law, the four laws (Gauss, Gauss for magnetism, Faraday, Ampere-Maxwell), how changing fields generate each other, the prediction of waves at the speed of light, and Hertz's confirmation. Plane waves: transverse fields perpendicular to each other and to propagation, E/B = c, the wave equation, c = 1/sqrt(epsilon0 mu0), and the E cross B direction. Energy: energy density, the Poynting vector, intensity, and the field amplitude relation E0 = c B0. Momentum and radiation pressure: p = U/c, absorber versus reflector pressure, comet tails, and light sails. The electromagnetic spectrum: c = f lambda, and radio, microwave, infrared, visible, ultraviolet, X-ray, and gamma-ray bands.