Astronomical Units & Light Years: Definition & Examples


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How can we figure out distances to far-away objects like stars and galaxies?

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1. Why can't we use miles to measure distances to far-away objects like stars and galaxies?

2. What is a light year?

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About This Quiz & Worksheet

You're going to be assessed with this quiz/worksheet on concepts such as stars and galaxies, light years, astronomical units, and distance measurement.

Quiz & Worksheet Goals

To elaborate, you're going to be examined on the following:

  • Way(s) distance is measured in space
  • Uselessness of miles as a measurement in space
  • Definition of a light year and an astronomical unit
  • Units with which one can measure distances between galaxies

Skills Practiced

  • Knowledge application - use your knowledge to answer questions about distance measurement in space
  • Information recall - access the knowledge you've gained regarding light years
  • Interpreting information - verify that you can read information regarding astronomical units and interpret it correctly

Additional Learning

Take in more information about distance in space by watching the affiliated video lesson, Astronomical Units & Light Years: Definition & Examples. View this lesson to become more learned on:

  • Unique ways in which we measure space
  • Proximity of stars to Earth
  • Names of the measurements we use to gauge distance in space