The Sun and Other Stars (Unit D Chapter2)
Terms
undefined, object
copy deck
- The sun's ________ is the layer we see.
- photosphere
- A dark area on the sun that is caused by twists and loops in the sun's magnetic field is a _____________.
- sunspot
- A _________ is a brief burst of energy that occurs above a sunspot.
- solar flare
- The __________ is a fast-moving stream of particles ejected into space.
- solar wind
- Two stars the same distance from earth that give off the same amount of light will appear to have the same _________.
- magnitude
- The sun's atmosphere is the __________.
- corona
- The classification group to which most stars belong is the ____________.
- main sequence
- The ________ is everything that exists.
- universe
- A group of stars, gas, and dust is a _______.
- galaxy
- A _________ is the distance light travels in one Earth year.
- light-year
- Use the following words to define your place in space starting with the smallest concept and ending with the largest: solar system, universe, Earth, Local Group, Milky Way Galaxy
-
1. Earth
2. solar system
3. Milky Way Galaxy
4. Local Group
5. universe -
At the center of a solar system is a _________?
A. galaxy B. moon
C. planet D. star - D.star
-
The surface of the sun is the part we can see. It is called the __________?
A. core B. photosphere
C. chromosphere D. corona - B. photosphere
-
Sunspots can cause brief bursts of energy known as solar __________?
A. flares B. auroras
C. prominences D. fusion - A. flares
-
The sun is a huge mass of _________?
A. metals B. gases
C. light D. liquids - B. gases
-
The hottest in the main sequence are also the _____________?
A. brightest B. largest
C. least bright D. smallest - A. brightest
-
The Milky Way Galaxy is located in the Local Group, a ____________?
A. universe B. nebula
C. galactic cluster D. main sequence - G. galactic cluster
-
The Milky Way Galaxy is what type of galaxy?
A. spiral B. elliptical
C. irregular D. spiral barred - A. spiral
- Energy from the sun travels in the form of what?
- waves
- Which layer is the hottest part of the sun?
- core
- In which layer of the sun are the cooler particles pulled down by gravity?
- convection zone
- In which layer of the sun do sunspots occur?
- Photosphere
- Astronomers hypothesize that a star forms in a cloud of dust and gas called a ____________?
- nebula