Download Assessment Star Characteristics and Life Cycle

Assessment Star Characteristics and Life Cycle
1. Below is a Hertzsprung-Russell Diagram that scientists use to compare stars based on their
properties.
According to the diagram, which type of star has both the highest temperature and the greatest
luminosity (brightness)?
A) Blue Giants
C) White Dwarfs
B) Red Supergiants
D) Red Giants
2. According to the H-R Diagram from question number 1, what color are the coolest stars on the
main sequence?
A) blue
C) yellow
B) white
D) red
3. One physical property of a star is magnitude. Which of the following is used in determining the
magnitude of a star?
A) the constellation the star is in
B) the distance the star is from earth
C) the number of times the star rotates
D) the number of prominences the star makes.
4. According to the H-R diagram from question 1, what type of star will our sun evolve to when it
leaves the main sequence?
A) Blue Giants
C) White Dwarfs
B) Red Supergiants
D) Red Giants
Questions 5 – 10 use Figure 1 to answer each question.
FIGURE 1 5. Using Figure 1, how should you classify a star with a luminosity (brightness) of 1,00,000 suns
and a surface temperature of around 3,000 K?
A) As a main sequence star
C) As a red giant
B) As a blue giant
D) As a red supergiant
6. According to Figure 1, what color are the hottest stars on the main sequence?
A) blue
C) yellow
B) white
D) red
7. Using the diagram, which star has the greatest luminosity?
A) Star 1
B) Star 2
C) Star 3
D) Star 4
8. Using the diagram, which star has the lowest luminosity?
A) Star 1
B) Star 2
C) Star 3
D) Star 4
9. Using the diagram, which star has the highest temperature?
A) Star 1
B) Star 2
C) Star 3
D) Star 4
10. Using the diagram, which star has the lowest temperature?
A) Star 1
B) Star 2
C) Star 3
D) Star 4