The Expanding Universe
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Questions and Answers

According to the theory of the expanding universe, what is the cause of the redshift observed in the light from astronomical objects?

  • The objects are stationary
  • The objects are moving away from us (correct)
  • The objects are moving closer to us
  • The objects are rotating

What is the term used to describe the small and compact particle in which the entire universe was once condensed according to the theory of the expanding universe?

  • Black hole
  • Quasar
  • Supernova
  • Primeval nucleus (correct)

What does the theory of the expanding universe propose about the counting of galaxies in our Universe?

  • The counting of galaxies is constant (correct)
  • The counting of galaxies is unpredictable
  • The counting of galaxies is increasing
  • The counting of galaxies is decreasing

What is the term used to describe the continuous expansion and contraction in the universe according to the theory of the expanding universe?

<p>Cyclic Universe (C)</p> Signup and view all the answers

What is the main content of the universe according to the theory of the expanding universe?

<p>Matter, energy, and intergalactic space (B)</p> Signup and view all the answers

According to Edwin Hubble's discovery, the redshift observed in the light from galaxies is evidence for which of the following?

<p>An expanding universe (A)</p> Signup and view all the answers

Which celestial body is NOT part of the Milky Way Galaxy?

<p>Satellites (B)</p> Signup and view all the answers

According to the theory of the formation of the sun and other celestial bodies, what is a nebula?

<p>A spinning cloud of gases (B)</p> Signup and view all the answers

What is the term used to describe the gradual increase in the size of an object by the buildup of matter due to gravity?

<p>Accretion (A)</p> Signup and view all the answers

According to the theory of the formation of the sun, what may have drawn gaseous materials from a protosun and gradually formed into planetesimals?

<p>A large body passing around the sun (C)</p> Signup and view all the answers

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