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Name ________________________________ Period ____________ Date ______________
Ch. 24 Light, and The Sun Study Guide
1.
Describe the relationship between wavelength and frequency in waves of energy.
2.
What is the electromagnetic spectrum? List all its waves from longest to shortest.
3.
Which wavelengths are most dangerous to humans? Why?
4.
How does light behave as both a wave and a particle? What are those particles called?
5.
Which color has the most energetic photons (highest frequency)?
6.
Draw below and label the 3 kinds of spectrums. Describe under what conditions each spectrum is made.
a.
b.
c.
7.
What information does a star’s spectrum offer about the star? What type of spectrum is associated with the radiation of
most stars?
8.
What is the Doppler effect? How is it used in astronomy?
9.
10.
11.
A refracting telescope produces an image using a(n) __________________________.
A reflecting telescope produces an image using a(n) __________________________.
What are the advantages of radio telescopes over optical telescopes?
12.
Why are most large telescopes reflecting and not refracting telescopes
13.
What advantages do space telescopes have over telescopes used on Earth?
14.
Label the layers of the sun and describe what features are found in each layer.
15.
Describe when the chromosphere and corona are visible to the naked eye.
16.
Describe what creates granuals? Which layer of the sun are they found?
17. Streams of electrons and protons that shoot out from the sun’s corona make up the solar ____. What effects do they
have on Earth?
18.
What are solar flares? What are solar prominences? Which layer of the sun do they occur in?
19.
What causes sunspots? Why are they dark?
20.
What is nuclear fusion? What elements are involved?
21.
Describe the theory of whe our solar system was formed.
22.
How old is our sun now and how much longer can it continue to exist?
23.
Describe the life cycle of our sun.