It comes from fires, light bulbs, lightning, as well as from hot things that are glowing. Personal observations concerning light The first thing we want to do is to take a closer look at light in the world around us. Light consists of different colors, as seen in a rainbow. It can have different brightness intensities. It can be focused by a lens or curved mirror.
Light seems to travel in rays or beams.
Light gets someplace almost instantaneously. Its speed is very fast. By going through all these observations about light, we have a better idea of all the different characteristics of it. Light is an electromagnetic wave Light is considered an electromagnetic wave. Whereas sound consists of wave motion of air or other objects, light is consists of wave motion of both electric and magnetic force fields together.