Life Cycle of Stars

What is the approximate surface temeprature of the sun according to the HR diagram?

• 5,500 K

• 6,000K

• 7,200 K

• 15,000K

Would the surface temperature of a red supergiant be higher or lower than a white dwarf?

• Higher

• Lower

What is the color of the stars with the highest surface temperature?

• Red

• Yellow

• White

• Blue

Most of the stars on the HR diagram are classified as which type of star?

• White Dwarfs

• Main Sequence

• Giants

• Supergiants

How is it possible for white dwarf stars to have a lower luminosity than the sun, even though the sun has a cooler surface temperature.

• The sun is smaller than a white dwarf.

• The sun is larger than a white dwarf.

Star A has a surface temperature of 10,000K and medium brightness. What color is it?

• White

• Red

• Yellow

• Blue

What kind of star is Sirius, the Dog Star?

• Main Sequence

• White Dwarf

• Blue Giant

• Red Supergiant

Tags

NGSS.HS-ESS1-3

White Dwarf

• Star left at the core of a planetary nebula

• a large cloud of gas or dust in space

• the earliest stage of a star's life

• red super giant explodes

Answer explanation

Tags

NGSS.HS-ESS1-3

Nebula

• Star left at the core of a planetary nebula

• a large cloud of gas or dust in space

• the earliest stage of a star's life

• red super giant explodes

Answer explanation

Protostar

• Star left at the core of a planetary nebula

• a large cloud of gas or dust in space

• the earliest stage of a star's life

• red super giant explodes

Answer explanation