Please help meee?

(THIS QUIZ WAS 50 QUESTIONS LONG AND THIS WAS JUST A PORTION OF IT. SOME OF THEM ARE EASY I ADDED IN THE PICTURE IF IT HELPS)

1.A white dwarf star has a surface temperature of about _______ degrees Celsius.

a.3,000

b.5,000 to 10,000

c.20,000 to 50,000

2.Magnitude means brightness. Absolute magnitude tells us how bright a star is. What is the brightness of a blue star in the upper left corner of your H-R Diagram?

a.20 to 15

b.10 to 5

c.0 to -5

d.-15 to -20

3. What is the brightness of a red star in the lower right corner?

a.20 to 15

b.10 to 5

c.0 to -5

d. -15 to -20

4. What is the brightness of the Sun, a yellow star?

a. -20

b. -10

c.5

d.15

5.The super giant stars in the upper right corner are very bright. Their brightness is ________.

a. 20 to 15

b. 10 to 5

c. 0 to -5

d.-10 to -20

6.A bright star will have a negative number for its absolute magnitude (brightness).

a.true

b.false

7.The apparent magnitude of stars is how bright they look to us. We are on the earth looking up into space. Which would look brighter?

a.small star

b.big star

8.Which would look brighter?

a. close star

b.far away star

9.Stars that are not very hot (cooler) but very bright are called ________.

a. giants

b. dwarfs

10.Stars that are very hot, but not very bright are called ________.

a. giants

b. dwarfs

11.Giants and dwarfs are believed to be _________ stars.

a.old

b.young

12.What size star is the Sun?

a. white dwarf

b.medium main sequence

c.giant

d.supergiant

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2 Answers

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  • Roger
    Lv 7
    3 years ago

    1.A white dwarf star has a surface temperature of about _______ degrees Celsius.

    c.20,000 to 50,000

    2.Magnitude means brightness. Absolute magnitude tells us how bright a star is. What is the brightness of a blue star in the upper left corner of your H-R Diagram?

    d.-15 to -20

    3. What is the brightness of a red star in the lower right corner?

    a.20 to 15

    4. What is the brightness of the Sun, a yellow star?

    c.5

    5.The super giant stars in the upper right corner are very bright. Their brightness is ________.

    d.-10 to -20

    6.A bright star will have a negative number for its absolute magnitude (brightness).

    a.true

    7.The apparent magnitude of stars is how bright they look to us. We are on the earth looking up into space. Which would look brighter?

    b.big star

    8.Which would look brighter?

    a. close star

    9.Stars that are not very hot (cooler) but very bright are called ________.

    a. giants

    10.Stars that are very hot, but not very bright are called ________.

    b. dwarfs

    11.Giants and dwarfs are believed to be _________ stars.

    b.young

    12.What size star is the Sun?

    b.medium main sequence

  • 3 years ago

    PLEASE HELP. I DON'T HAVE OLDER SIBLINGS OR ANY ONE THAT CAN HELP ME. SO I COME TO THE INTERNET FOR HELP.

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