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The Brightest Stars list is in order of a. apparent magnitude. b. absolute magnitude. c. distance. d. spectral type. 2. The Nearest Stars list is in order of a. apparent magnitude. b. absolute magnitude. c. distance. d. spectral type. 3. The H-R diagram is a plot of a. apparent magnitude and distance. b. absolute magnitude and distance. c. apparent magnitude and spectral type. d. absolute magnitude and spectral type. 4. The nearest stars are mostly a. bright and hot. b. bright and cool. c. dim. d. hot. 5. Which is an indicator of a star’s temperature? a. apparent magnitude b. absolute magnitude c. spectral type d. [none of the above indicates temperature] 6. Which type of star is bright but cool? a. blue giant b. red giant c. red dwarf d. white dwarf 7. Where on the H-R diagram are bright but cool stars? a. upper right b. upper left c. lower right d. lower left 8. Which type of star is hot but dim? a. blue giant b. red giant c. red dwarf d. white dwarf 9. Where on the H-R diagram are hot but dim stars? a. upper right b. upper left c. lower right d. lower left 10. Which type of star is hottest? a. blue giant b. red giant c. red dwarf d. white dwarf

          The Brightest Stars list is in order of
a. apparent magnitude.
b. absolute magnitude.
c. distance.
d. spectral type.

2. The Nearest Stars list is in order of
a. apparent magnitude.
b. absolute magnitude.
c. distance.
d. spectral type.

3. The H-R diagram is a plot of
a. apparent magnitude and distance.
b. absolute magnitude and distance.
c. apparent magnitude and spectral type.
d. absolute magnitude and spectral type.

4. The nearest stars are mostly
a. bright and hot.
b. bright and cool.
c. dim.
d. hot.

5. Which is an indicator of a star’s temperature?
a. apparent magnitude
b. absolute magnitude
c. spectral type
d. [none of the above indicates temperature]

6. Which type of star is bright but cool?
a. blue giant
b. red giant
c. red dwarf
d. white dwarf

7. Where on the H-R diagram are bright but cool stars?
a. upper right
b. upper left
c. lower right
d. lower left

8. Which type of star is hot but dim?
a. blue giant
b. red giant
c. red dwarf
d. white dwarf

9. Where on the H-R diagram are hot but dim stars?
a. upper right
b. upper left
c. lower right
d. lower left

10. Which type of star is hottest?
a. blue giant
b. red giant
c. red dwarf
d. white dwarf

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Added by Lisa P.

University Physics with Modern Physics

Hugh D. Young 14th Edition

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Solved by Expert Christian Dell

06/16/2022

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The Brightest Stars list is in order of a. apparent magnitude. This is because the brightness we see from Earth is determined by the apparent magnitude. Show more…

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The Brightest Stars list is in order of a. apparent magnitude. b. absolute magnitude. c. distance. d. spectral type. 2. The Nearest Stars list is in order of a. apparent magnitude. b. absolute magnitude. c. distance. d. spectral type. 3. The H-R diagram is a plot of a. apparent magnitude and distance. b. absolute magnitude and distance. c. apparent magnitude and spectral type. d. absolute magnitude and spectral type. 4. The nearest stars are mostly a. bright and hot. b. bright and cool. c. dim. d. hot. 5. Which is an indicator of a star’s temperature? a. apparent magnitude b. absolute magnitude c. spectral type d. [none of the above indicates temperature] 6. Which type of star is bright but cool? a. blue giant b. red giant c. red dwarf d. white dwarf 7. Where on the H-R diagram are bright but cool stars? a. upper right b. upper left c. lower right d. lower left 8. Which type of star is hot but dim? a. blue giant b. red giant c. red dwarf d. white dwarf 9. Where on the H-R diagram are hot but dim stars? a. upper right b. upper left c. lower right d. lower left 10. Which type of star is hottest? a. blue giant b. red giant c. red dwarf d. white dwarf

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Transcript

00:01 Okay, so here we have some questions about stars.

00:03 And we'll start for question one.

00:04 The brightest stars list is in order of a apparent magnitude.

00:08 It's how bright stars appear to us on earth, not how bright they actually are individually.

00:14 Question two, the nearest stars list is an order of sea distance.

00:19 Three, the hr diagram, which i've drawn fairly well.

00:22 Here i think it's a plot of absolute magnitude against spectral type.

00:28 So that is going to be option d.

00:32 And you could also write temperature on the x -axis with cooler temperatures on the right -hand side and hotter temperatures on the left -hand side.

00:40 Question four, the nearest stars are mostly...

00:45 Now, i'd like some more information as to whether bright here is meant to be brightness referring to absolute magnitude or brightness referring to apparent magnitude.

00:57 If it is apparent magnitude, then it's going to be option b, because the nearest stars are close to us, therefore they appear brighter.

01:06 But compared to other stars, they're fairly dim in terms of their absolute magnitude.

01:12 Now, they are quite cool as well, and that is an absolute value there.

01:18 Obviously, it's hot compared to other things, but cool compared to most stars.

01:21 So i'm going to say b here, but i would like more information as to whether bright means apparent magnitude or absolute magnitude.

01:29 Again, i'll just write this here, b, if we refer to apparent magnitude.

01:45 Okay, question five, which is an indicator of a star's temperature? that is going to be its spectral type.

01:53 That's why i said you could also write temperature along the x axis.

01:57 So, cooler temperatures are to the right and hotter temperatures are to the left.

02:01 Question six, which type of star is bright but cool? so brightness, we get brighter as we go up the y -axis, and we get cooler as we go along the x -axis.

02:13 So it's going to be in the top right -hand corner...

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