Astronomy Unit Review

Which theory proposes that the universe started from a single point and has been expanding since then?

• Quantum Fluctuation

• Big Bang Theory

• String Theory

• General Relativity

Tags

NGSS.HS-ESS1-2

Who proposed the concept of an expanding universe which forms the basis of the Big Bang theory?

• Isaac Newton

• Edwin Hubble

• Stephen Hawking

• Nicolaus Copernicus

Tags

NGSS.HS-ESS1-2

Which theory poses that the universe has no specific point of origin and is in a constant state of creation to maintain a steady density?

• Light Spectra Theory

• Big Bang Theory

• Steady State Theory

• Motion of Distant Galaxies Theory

What does Hubble's Law say about the relationship between a galaxy's distance and its velocity?

• They are inversely proportional

• They are directly proportional

• There is no relationship

• The relationship is random

What can be inferred about a star based on its atomic absorption spectra?

• The star's age

• The star's size

• The star's velocity relative to Earth

• The composition of the star's atmosphere

Tags

NGSS.HS-PS4-3

What method do astronomers use to determine the elements present in a distant star?

• By calculating its distance from Earth

• By estimating its age

• By analyzing its light spectrum

• By measuring its size

Tags

NGSS.HS-ESS1-2

Which observation supports the Big Bang Theory and indicates the universe is expanding?

• The redshift of light from distant galaxies

• The green shift of light from nearby stars

• The constant state of galaxies

• The presence of dark matter

Tags

NGSS.HS-ESS1-2

What diagram is used in astronomy to plot the temperature and luminosity of stars?

• Bar chart

• Hertzsprung-Russell diagram

• Line graph

• Area chart

What do the vertical axis and horizontal axis on a Hertzsprung-Russell diagram typically represent?

• Time in years and distance from Earth

• Temperature and luminosity (brightness)

• Mass and composition of stars

• Planetary orbits and star positions

Tags

NGSS.HS-ESS1-3

Where on the Hertzsprung-Russell diagram would you find the red giants?

• In the upper-right corner

• In the lower-left corner

• Along a diagonal line from the upper-left to the lower-right

• In the center of the diagram

Tags

NGSS.HS-ESS1-3