The document defines electromagnetic waves and asks a series of questions about them including: what is the disappearance of an EM wave into a medium? How are materials classified based on how they interact with light? It also asks about the electromagnetic spectrum, visible light wavelengths, and production of light through various means like heat and bioluminescence.

1. 17. What is the disappearance of an EM wave into a
medium?
1. Define Electromagnetic Wave (EM)
18. How are materials that allow most of the light that strikes
to pass through classified?
2. How do EM Waves form?
19. How are materials that transmit some of the light, but
also causes some light to spread out in all directions
3. What is the Source of most EM waves in Earth's
classified?
environment?
20. How are materials that do not allow any light to pass
4. What is the transfer of energy in the form of EM waves
through them, because they reflect and/or absorb light
called?
classified?
5. What is the speed that EM Waves travel in a vacuum?
21. What is a way of filtering light so that all of its waves
vibrate in the same direction?
6. What is another name for the constant speed of EM waves
in a vacuum?
List the colors that make up visible light in order
22.
7. What is the electromagnetic spectrum?
23.
24.
List the different waves in the electromagnetic spectrum in
25.
order from longest to shortest.
26.
8.
27.
9.
28.
10.
29.
11.
30. What is the production of light by materials at high
12.
temperatures called?
13.
14.
31. What is the production of light by living organisms called?
15. Which type of EM waves is the most harmful to humans?
32. What is light that occurs when a material absorbs EM
16. What is the passage of an EM wave through a medium? radiation of one wavelength and gives off EM radiation of a
different wavelength?