Universe and Galaxies

What type of diagram can be created using spectroscopic parallax?

• Kepler-Webb diagram

• CMB diagram

• H-R diagram

• cosmological redshift diagram

Answer explanation

H-R diagrams for main-sequence stars are created using color and magnitude but once made can also give information on temperature and luminosity

A star's ultimate fate, temperature, luminosity, and gravitational force is determined by its ____.

Which of the following is the closest thing we know of to a black body radiator?

• supernova

• star

• black hole

• nebula

What is the current state of the universe?

• the universe is static

• it is increasing in velocity as it contracts

• it is decreasing in velocity as it expands

• it is increasing in velocity as it expands

Where would you find a red supergiant such as Betelgeuse on a H-R diagram?

• upper right

• upper left

• lower right

• lower left

________ dwarf stars, such as Sirius B, are found in the lower left section of an H-R diagram.

Hubble's Law describes how the more redshifted a galaxy is the further away it is from us as it moves away (since the universe is expanding).

• true

• false

Tags

NGSS.HS-ESS1-2

The universe is expanding and accelerating due to _____________

• hot dark matter

• baryonic matter

• dark energy

• cold dark matter

What is at the beginning of the formation of every star?

• stellar nebula to protostar

• planetary nebula to protostar

• protostar to red giant

• red giant to white dwarf

What type of galaxy is our home galaxy, the Milky Way?

• barred spiral

• elliptical

• irregular

• regular spiral

Tags

NGSS.MS-ESS1-2