Stars

Stars are classified by their brightness and temperature on the H-R diagram. How would you describe a white dwarf star, compared to most other stars?

• A white dwarf has a lower temperature and is brighter than most stars.

• A white dwarf has a higher temperature and is brighter than most stars.

• A white dwarf has a lower temperature and is not as bright as most stars.

• A white dwarf has a higher temperature and is not as bright as most stars.

Where does the sun fit on the H-R Diagram?

• The sun is a giant star.

• The sun is a supergiant star.

• The sun is a white dwarf star.

• The sun is a main sequence star.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

What property of a star will determine whether it ends as a white dwarf, a neutron star or a black hole?

• The star’s distance from the Earth.

• The number of planets orbiting the star.

• The star’s mass will determine its final stage.

• The star’s shape will determine its final stage.

Stars are classified by their brightness and temperature on the H-R diagram. How would you describe a supergiant, compared to most other stars?

• A supergiant has a lower temperature and is brighter than most stars.

• A supergiant has a higher temperature and is brighter than most stars.

• A supergiant has a lower temperature and is not as bright as most stars.

• A supergiant has a higher temperature and is not as bright as most stars.

The process by which stars create heavier elements from lighter ones is referred to as

• fission.

• fusion.

• a chemical reaction.

• a physical change.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

Which of the following would NOT be useful information for helping to classify stars?

• the constellation they are a part of

• the mass of the star

• the amount of light given off by a star

• the color of the star

Stars are classified by their brightness and temperature on the H-R diagram.

Which statement is true based upon the H-R diagram?

• A supergiant has a lower temperature and is brighter than a white dwarf.

• A supergiant has a lower temperature and is less bright than a white dwarf.

• A supergiant has a higher temperature and is less bright than a white dwarf.

• A supergiant has a higher temperature and is brighter than a white dwarf.

Tags

NGSS.HS-ESS1-3

How were the elements carbon and iron formed in the universe?

• from nuclear reactions during the Big Bang

• from fusion reactions in the stars

• from fission reactions in the Sun

• from chemical reactions in black holes

Tags

NGSS.HS-ESS1-3

What will the most massive stars become when they are no longer undergoing nuclear fusion?

• black holes

• neutron stars

• white dwarf stars

• main sequence stars

All of the elements were created in stars except for

• hydrogen and oxygen.

• hydrogen and helium.

• carbon and oxygen.

• sodium and chlorine.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3