| A | B |
|---|
| frequency | the number of light waves that pass a certain point during a given period of time |
| transparent | describes an object that transmits light, or allows light to pass through it |
| translucent | describes an object that lets some light waves pass through, but blocks others |
| refraction | the bending of light rays as they enter a new medium |
| colors | different frequencies of visible light; there are seven in the spectrum |
| light | energy that we can see and sometimes feel as heat |
| opaque | describes an object that reflects or absorbs all the light that strikes it |
| electromagnetic spectrum | full range of electromagnetic waves |
| reflection | the process of light striking an object and bouncing off |
| transmission | when light passes through matter |
