Life Cycle of a Star and HR Diagram

The Hertzprung Russell Diagram consists of two axis that are labelled...

• Luminosity and Size
• Luminosity and Temperature
• Size and Age
• Mass and Temperature

90% of stars are in which part of their life cycle, as shown on the HR diagram?

• Main Sequence
• Supergiant
• White Dwarf
• Nebula

Tags

NGSS.HS-ESS1-1

Which of the following are the brightest?

• red supergiants

• yellow main sequence

• red dwarfs

• white dwarfs

The surface temperature of a particular brown dwarf is 1000K. Where would it fit on an HR Diagram?

• top-left

• top-right

• bottom-left

• bottom-right

Proxima Centauri has a luminosity of less than 1.  What does that mean?

• It is brighter than the Sun.
• It is hotter than the Sun.
• It is dimmer than the Sun.
• It is cooler than the Sun.

How many times brighter is Rigel than the Sun?

• 5 times brighter

• 2 times brighter

• 10,000 time brighter

• 100,000 times brighter

Tags

NGSS.HS-ESS1-3

Which of the following stars is the hottest?

• Bellatrix

• Deneb

• Polaris

• Barnard's Star

Tags

NGSS.HS-ESS1-3

Which of the following stars is the brightest?

• Bellatrix

• Deneb

• Polaris

• Barnard's Star

Tags

NGSS.HS-ESS1-3

Which of the following are generally the hottest?

• Supergiants

• Red Giants

• Yellow Main Sequence Stars

• White Dwarfs

Tags

NGSS.HS-ESS1-3

Where are the coolest stars on an HR Diagram found?

• top

• bottom

• left

• right

Tags

NGSS.HS-ESS1-3