Carl Sagan - Astrophysics and Extraterrestrial Life

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the process of creating new atomic nuclei called?

  • Nucleosynthesis (correct)
  • Triple alpha process
  • Proton-proton chain
  • Nuclear fusion

Which of the following is a giant cloud of dust and gas in space?

  • Red giant
  • Protostar
  • Nebula (correct)
  • Main sequence star

What type of star is the Sun?

  • Red giant
  • Main sequence star (correct)
  • Planetary nebula
  • Protostar

What is the final stage in a low-mass star's life called?

<p>Planetary nebula (D)</p> Signup and view all the answers

Which process allows stars to fuse heavier elements like carbon and oxygen?

<p>Triple alpha process (C)</p> Signup and view all the answers

What is the first element formed after the Big Bang?

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

What is the main factor that determines the path and fate of a star?

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

What process allows stars to release enough outward energy to counter the inward force of gravity?

<p>Nuclear fusion (D)</p> Signup and view all the answers

What is the famous equation mentioned in the text that relates mass and energy?

<p>E = mc² (B)</p> Signup and view all the answers

What is the primary reaction that powers stars in their cores?

<p>Conversion of hydrogen into helium (B)</p> Signup and view all the answers

What is the process in which two light nuclei merge to form a single heavier nucleus?

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

Which of the following factors is NOT mentioned in the text as influencing the lifetime and eventual fate of a star?

<p>The star's distance from other stars (C)</p> Signup and view all the answers

Flashcards are hidden until you start studying

More Like This

Use Quizgecko on...
Browser
Browser