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TEKS 8.8A Universe HR Diagram 4

Total questions: 20

Worksheet time: 45mins

Name
Class
Date
1.
The Milky Way galaxy is described as a disk of stars orbiting a central point on the disk. Which of these best explains why people on Earth cannot see the entire shape of the Milky Way?
a)
Earth is a part of this galaxy
b)
Many more stars exist outside the galaxy
c)
The stars in the center of the galaxy are extremely small.
d)
The center of the galaxy consists of a dense cluster of stars.
2.

Use the Hertzsprung Russell Diagram to answer the following question. Which of these observations of Epsilon Eridani is most likely accurate?

a)

Epsilon Eridani is less bright than the Sun, has a surface temperature below 5,000 oC, and is red orange.

b)

Epsilon Eridani is brighter than the Sun, has a surface temperature below 5,000 oC, and is red orange.

c)

Epsilon Eridani is brighter than the Sun, has a surface temperature below 6,000 oC, and is red.

d)

Epsilon Eridani is less bright than the Sun, has a surface temperature below 5,000 oC, and is yellow

3.

Use the Hertzsprung Russell Diagram to answer the following question. Which of these observations of Procyon is most likely accurate?

a)

Procyon is less bright than the Sun, has a surface temperature below 5,000 oC, and is red orange.

b)

Procyon is brighter than the Sun, has a surface temperature below 5,000 oC, and is red orange.

c)

Procyon is brighter than the Sun, has a surface temperature of about 6,000 oC, and is yellow.

d)

Procyon is less bright than the Sun, has a surface temperature of about 6,000 oC, and is yellow

4.

Use the Hertzsprung Russell Diagram to answer the following question. Which of these observations of Tau Ceti is most likely accurate?

a)

Tau Ceti is less bright than the Sun, has a surface temperature above 5,000 oC, and is red orange.

b)

Tau Ceti is brighter than the Sun, has a surface temperature below 5,000 oC, and is red orange.

c)

Tau Ceti is brighter than the Sun, has a surface temperature below 5,000 oC, and is yellow.

d)

Tau Ceti is less bright than the Sun, has a surface temperature above 5,000 oC, and is yellow

5.
Based on this diagram which type of stars would belong to spectral class M and have the lowest luminosity?
a)
Main Sequence Stars
b)
Giants
c)
Super Giants
d)
White Dwarfs
6.
Based on this diagram which type of stars would belong to spectral class G and have the highest luminosity?
a)
Main Sequence Stars
b)
Giants
c)
Super Giants
d)
White Dwarfs
7.
Based on this diagram which type of stars would belong to spectral class B and have the lowest luminosity?
a)
Main Sequence Stars
b)
Giants
c)
Super Giants
d)
White Dwarfs
8.

Use the Hertzsprung Russell Diagram to answer the following question. How do the characteristics of Vega and Barnard's Star compare?

a)

Vega is cooler and less bright than Barnard's Star.

b)

Vega is hotter and brighter than Barnard's Star.

c)

Vega is cooler and brighter than Barnard's Star.

d)

Vega is hotter and less bright than Barnard's Star.

9.

Use the Hertzsprung Russell Diagram to answer the following question. How do the characteristics of Vega and Betelgeuse compare?

a)

Vega is cooler and less bright than Betelgeuse.

b)

Vega is hotter and brighter than Betelgeuse.

c)

Vega is cooler and brighter than Betelgeuse.

d)

Vega is hotter and less bright than Betelgeuse.

10.

Use the Hertzsprung Russell Diagram to answer the following question. How do the characteristics of Vega and Rigel compare?

a)

Vega is cooler and less bright than Rigel.

b)

Vega is hotter and brighter than Rigel.

c)

Vega is cooler and brighter than Rigel.

d)

Vega is hotter and less bright than Rigel.

11.
Which of these correctly compares the masses of different objects in the universe?
a)
A moon has less mass than a star and more mass than the planet it orbits.
b)
A planet has less mass than a galaxy and more mass than the star it orbits.
c)
A galaxy has less mass than a moon and more mass than a planet.
d)
A star has less mass than a galaxy and more mass than a planet.
12.

Use the Hertzsprung Russell Diagram to answer the following questions. A star that is several thousand time brighter than the sun with a temperature lower than 5,000oC and is red.

a)

Betelgeuse

b)

Deneb

c)

Sirius B

d)

Barnard's Star

13.

Use the Hertzsprung Russell Diagram to answer the following questions. A star that is several thousand time dimmer than the sun with a temperature higher than 6,000oC and is white.

a)

Betelgeuse

b)

Deneb

c)

Sirius B

d)

Barnard's Star

14.

Use the Hertzsprung Russell Diagram to answer the following questions. A star that is several thousand time dimmer than the sun with a temperature lower than 5,000oC and is red.

a)

Betelgeuse

b)

Deneb

c)

Sirius B

d)

Barnard's Star

15.

Use the Hertzsprung Russell Diagram to answer the following questions. A star that is several thousand time brighter than the sun with a temperature higher than 6,000oC and is white.

a)

Betelgeuse

b)

Deneb

c)

Sirius B

d)

Barnard's Star

16.
The universe has may different components.  Which list places four components of the universe in the most likely order from smallest to largest.
a)
Planets, Stars, Galaxies, Nebulae
b)
Nebulae, Stars, Planets, Galaxies
c)
Galaxies, Stars, Planets, Nebulae
d)
Planets, Stars, Nebulae, Galaxies
17.
Barnard's Star has a temperature of 2,800, what is its spectral class?
a)

Spectral Class O

b)
Spectral Class A
c)
Spectral Class G
d)
Spectral Class M
18.
Zeta Eridani has a temperature of 40,000 what is its spectral class?
a)
Spectral Class O
b)
Spectral Class A
c)
Spectral Class G
d)
Spectral Class M
19.
Procyon B has a temperature of 6,000, what is its spectral class?
a)
Spectral Class O
b)
Spectral Class A
c)
Spectral Class G
d)
Spectral Class M
20.
Alcor has a temperature of 11,000, what is its spectral class?
a)
Spectral Class O
b)
Spectral Class A
c)
Spectral Class G
d)
Spectral Class M