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- 1. Multiple Choice
Our Sun is classified as a spectral "G2" star - meaning that
there are trillions more like it in our galaxy.
it will die in a supernova explosion one day.
there are no other stars like it.
it has an average temperature & relative size.
- 2. Multiple Choice
Like more than ___ billion stars in the Milky Way galaxy, our Sun is a huge ball of plasma gas.
1
10
100
1000
- 3. Multiple Choice
Like other stars, the Sun produces energy in its core by
fusing hydrogen into helium.
burning plasma gas.
mostly unknown chemical reactions.
fusing helium into hydrogen.
- 4. Multiple Choice
Energy fro the core passes through the ____ zone, then the _____ zone before reaching the surface.
convection, radiation
photosphere, chromosphere
radiation, convection
radiation, photosphere
- 5. Multiple Choice
The core's temperature reaches to about 28 million oF, while the surface temperature is about ____.
10 oF
1000 oF
1,000,000 oF
10,000 oF
- 6. Multiple Choice
The _____ is the "surface of the Sun or the lowest part of the Sun's atmosphere.
corona
chromosphere
photosphere
exosphere
- 7. Multiple Choice
Above the photosphere is the _____ - which is the thinnest of the Sun's layers.
radiative layer
chromosphere
corona
solar wind
- 8. Multiple Choice
The _____ is the single largest part of the Sun's atmosphere and extends millions of Km into space.
chromosphere
photosphere
exosphere
corona
- 9. Multiple Choice
Temperatures reach as high as ____ degrees Fahrenheit (2 million K) in the corona.
3.6 million
1 million
10,000
100,000
- 10. Multiple Choice
Charged particles continuously escape from the corona and move through the solar system as
space debris.
charged particles.
solar storms
solar wind
- 11. Multiple Choice
When we observe the Sun, the surface appears to be smooth because it's mostly smooth.
True
False
- 12. Multiple Choice
Surface features on the Sun include sunspots, which are hotter and brighter than the surface.
True
False
- 13. Multiple Choice
Sunspots rotate with the Sun's surface and has no effect on Earth's climate.
True
False
- 14. Multiple Choice
Sunspots appear & disappear over several days, weeks or months and usually
reappear on the other side.
increase or decrease in cycles.
not come back.
behave like magnetic solar storms or flares.
- 15. Multiple Choice
Maximum sunspot activity normally occurs every 11 years or so, with sunspot minimum activity
rarely occurring at all.
every 21 years or so.
occurring in between.
having a minimum effect.
- 16. Multiple Choice
Sunspots are related to several other features on the Sun including
prominences.
the corona.
the main magnetic field.
flares.
- 17. Multiple Choice
Prominences are huge arching columns of gas that are associated with intense magnetic fields
caused by solar flares.
originating from the core.
created by the chromosphere.
caused by sunspots.
- 18. Multiple Choice
Coronal mass ejections (CME's) occur during solar max activity and can cause
great damage to life on Earth.
satellites to malfunction.
mass power outages on Earth.
mass hysteria on Earth.
- 19. Multiple Choice
CME's form as magnetic fields above sunspot groups and can also trigger events on Earth such as
ice ages.
colorful auroras.
dangerous radiation spikes.
thunderstorms and lightning.
- 20. Multiple Choice
CME's compress the Earth's _____ causing charges particles to interact and/or pass through it.
atmosphere
magnetosphere
ozone layer
crust
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