Understanding Astronomical Units (AU)
10 Questions
1 Views

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 distance from the Sun to Neptune in light years?

  • 0.00062 light years
  • 30 light years
  • 0.000015 light years
  • 0.00019 light years (correct)

    • How is one light-year defined?

  • The distance light travels in one hour
  • The distance light travels in one year (correct)
  • The distance light travels in one minute
  • The distance light travels in one day

    • What is the distance from Earth to Alpha Centauri in parsecs?

  • 4.2 parsecs
  • 3.65 parsecs
  • 1.29 parsecs (correct)
  • 0.0000048 parsecs

    • What is the conversion of parsecs to light-years?

    <p>3.3 light-years</p> Signup and view all the answers

    Why do astronomers use different units of distance like AU, light-years, and parsecs?

    <p>To express distances over a wide range of scales conveniently</p> Signup and view all the answers

    What does the term 'aphelion' refer to in relation to the Earth's orbit around the Sun?

    <p>The furthest distance of Earth from the Sun</p> Signup and view all the answers

    What is the perihelion in astronomical terms for the Earth's orbit?

    <p>0.938 AU</p> Signup and view all the answers

    How is an Astronomical Unit (AU) defined in relation to the Earth's orbit?

    <p>The average orbital distance of the Earth</p> Signup and view all the answers

    Why are distances within the solar system typically given in terms of AU?

    <p>To compare distances on a more uniform scale</p> Signup and view all the answers

    How can the mean orbital distance of any planet be expressed using perihelion and aphelion values?

    <p>By finding the average of perihelion and aphelion</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser