Post #23 - Light

Above, I took a picture of a radio because we learned about light. Light has many different levels of energy which is called electromagnetic spectrum. Red light is considered low energy and violet is considered high energy. The energy levels are able to be read with ROYGBIV (colors). The radio is considered low energy because it requires low frequency compared to gamma rays which are high energy because of high frequency.
Light travels at 3 x 10^8 m/s. One light year is the distance light travels in one year. Opaque means that waves cannot go through something. Transparent means that waves can go through something. Light cannot be seen.