Vocabulary #2

prism: a cut piece of clear glass (or plastic) with two opposite sides in the shape of a triangle or other geometric shape

spectrum: a band of colors produced when light goes through a prism

primary color: red,green.or blue; mixing these colors can produced all the colors of the spectrum

primary pigment: magenta, cyan, yellow; material with any of these colors absorbs one primary color of light and reflects the other two

electromagnetism: the production of magnetism by eletricity and the production of electricity by magnets

electromagnetic spectrum,: all the wavelengths of visible and invisible light in order from short (gamma rays) to long (radio)

laser: a device that produce a thin stream of light of just a few close wavelenghts