Ejecta Material that is ejected. Used mostly to describe the content of a massive star that is propelled outward in a supernova explosion. Electromagnetic Radiation Radiation that travels through vacuous space at the speed of light and propagates by the interplay of oscillating electric and magnetic fields. This radiation has a wavelength and a frequency. Another term for light.
Light waves are fluctuations of electric and magnetic fields in space.
A particle commonly found in the outer layers of atoms with a negative charge. The electron has only 0.0005 the mass of the proton. The rate of flow of electrons through a reference surface. Electron Volt Abbreviated eV . A unit of energy used to describe the total energy carried by a particle or photon.