Exit Ticket - HR Diagrams Day 1

A star that is several thousand times brighter than the sun with a temperature that is higher than 30,000 K would most likely be classified as a -

• main-sequence star in spectral class O

• giant in spectral class K

• main-sequence star is spectral class M

• supergiant in spectral class B

Tags

112.20.b.8.A

A star with a luminosity of 10^2 L and a temperature of 11,000 K would most likely be classified as a -

• giant in spectral class G

• main-sequence star in spectral class A

• giant in spectral class K

• main-sequence star in spectral class B

Tags

112.20.b.8.A

Based on the diagram, how do the characteristics of white dwarfs and giants compare?

• White dwarfs are cooler and less bright than giants

• White dwarfs are hotter and less bright than giants

• White dwarfs are cooler and brighter than giants

• White dwarfs are hotter and brighter than giants

Tags

112.20.b.8.A

A star that is not as bright as the sun with a temperature higher than 10,000 K would most likely be classified as a -

• main-sequence star in spectral class A

• main-sequence star in spectral class O

• white dwarf in spectral class B

• supergiant in spectral class M

Tags

112.20.b.8.A

The sun is a main-sequence star in spectral class G. Which of the following statements does NOT accurately compare a giant in spectral class K to the sun?

• The giant is brighter than the sun

• The giant is hotter than the sun

• The giant is larger than the sun

• The giant is farther from the Earth than the sun

Tags

112.20.b.8.A

Which stars belong to spectral class G and have the lowest luminosity?

• Main-sequence stars

• White dwarfs

• Giants

• Supergiants

Tags

112.20.b.8.A

Based on the diagram, how do main-sequence stars in spectral class M and main sequence stars in spectral class B compare?

• Main-sequence stars in spectral class M are hotter and brighter than those in spectral class B

• Main-sequence stars in spectral class M are cooler and brighter than those in spectral class B

• Main-sequence stars in spectral class M are hotter and less bright than those in spectral class B

• Main-sequence stars in spectral class M are cooler and less bright than those in spectral class B

Tags

112.20.b.8.A

Compared to main-sequence stars in spectral class K, supergiants in spectral class K are -

• larger, brighter and at least 10,000 degrees cooler

• smaller, less bright and close to the same temperature

• larger, less bright, and at least 10,000 degrees hotter

• larger, brighter, and close to the same temperature

Tags

112.20.b.8.A

Correctly label the HR diagram.

a

b

c

d

White Dwarfs

Main-Sequence

Supergiants

Giants

Tags

NGSS.HS-ESS1-3

What type of star is our sun?

• Main-sequence

• White dwarf

• Blue supergiant

• Red Giant

Tags

112.20.b.8.A