The Spiral Arms of the Milky Way Galaxy

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

This is a type of electromagnetic radiation, with long wavelengths, which can penetrate the interstellar medium:

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1. Concentrations of gas and dust extending from the center of a galaxy in a pinwheel shape are termed:

2. Neutral hydrogen is also called:

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The Milky Way Galaxy is perhaps most notable for its long spiral arms extending outward from the center. This quiz/worksheet combo will help you test your understanding of the characteristics of the Milky Way's spiral arms. Some things you'll be assessed on include the term for a type of electromagnetic radiation that has long wavelengths and can penetrate the interstellar medium, the term for concentrations of gas and dust extending from the center of a galaxy in a pinwheel shape, and another term for neutral hydrogen.

Quiz & Worksheet Goals

In these assessments you'll be tested on:

  • Type of electromagnetic radiation that has long wavelengths and can penetrate the interstellar medium
  • Concentrations of gas and dust extending from the center of a galaxy in a pinwheel shape
  • Neutral hydrogen
  • Change in the frequency of a wave caused by the motion of the observer or source emitting the wave
  • Identifying possible reasons for why we can't detect excited hydrogen

Skills Practiced

  • Information recall - access the knowledge you've gained regarding the spiral arms of the Milky Way
  • Knowledge application - use your knowledge to answer questions about the characteristics of the Milky Way's spiral arms and relevant astronomical information
  • Interpreting information - verify that you can read information on the Milky Way's spiral arms and interpret it correctly

Additional Learning

To learn more about the Milky Way, review the accompanying lesson on The Spiral Arms of the Milky Way Galaxy. This lesson covers the following topics:

  • The spiral arms of our galaxy
  • Radio astronomy
  • Detecting the spiral arms
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