WebQuest 4 – EM Energy

Stellar WebQuest Part 4
Remote Learning
Open PhotoBooth on your computer. Locate a remote control found in your house. Turn off the lights in your
room. Point the remote control to the camera on your computer camera. Press the buttons on the remote.
Describe what you “see” in your computer. Can you see the same thing with you eye? Why or why not? Record 3
thoughtful question you have about this phenomenon.
Directions: Read the book found on the link above. When finished, develop answers to the questions below.
Please answer in complete sentence and in your own words! Please use this Word document by answering in a
separate color just below each question. Place your name at the top. Save file as Last, First. You will drop this
file at our next class.
1) Our Sun and other stars are a source of energy across the full spectrum, and its electromagnetic radiation
bombards our atmosphere constantly. But does all of it enter the atmosphere? Why or why not? What is an
atmospheric window?
2) What is ionizing energy and what effects can it have on matter and living cells? What waves are associated
with this energy?
3) Electromagnetic waves are different from sound waves. Describe a few ways they are different.
4) What is wave frequency and wavelength? How are they related and why?
5) Light waves across the electromagnetic spectrum behave in similar ways. Depending on the composition of the
object it hits and the wavelength of the light, it will behave in different ways. Describe each way below.
a) transmitted - b) reflected - c) absorbed - d) refracted - e) polarized - f) diffracted - g) scattered.
6) Describe each of the 7 types of electromagnetic radiation in a paragraph or two. (radio waves, microwaves, infrared,
visible light, ultraviolet, X-rays, gamma) Please use your own words. For each spectrum range, be sure to include:
a) wavelength & frequency, and energy (J)
b) stellar relationships
c) technology and applications on Earth
d) interesting facts
7) Use the link above an others you find to answer this question: How do we use light to determin what stars and
nebulas are made of? How does this relate to the spectroscope?