The Speed of Light: Distance & Light-Years

Instructions:

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

question 1 of 3

How many miles does one light year represent (round to the nearest whole number)? Hint: 1 mile = 1.61 km.

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1. The time that has passed between when light was originally emitted by a source and when we detect it on Earth is known as the:

2. An AU is an:

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About This Quiz & Worksheet

Use this quiz/worksheet combo to help you test your understanding of the speed of light. Some of the topics you'll be assessed on include knowing the distance light travels through a vacuum in one year as well as the time that has passed between when light was originally emitted by a source and when we detect it on Earth.

Quiz & Worksheet Goals

In these assessments you'll be tested on:

  • Calculating the miles light travels in one year
  • Time between when light was emitted by a source and when we detect it on Earth
  • Meaning of AU
  • Distance light travels through a vacuum in one year
  • Speed of light characteristics

Skills Practiced

This quiz and worksheet allow students to test the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related lesson on the speed of light
  • Interpreting information - verify that you can read information regarding characteristics about the speed of light and draw conclusions
  • Information recall - access the knowledge you've gained regarding what AU represents
  • Knowledge application - use your knowledge to answer questions about characteristics of the speed of light

Additional Learning

To learn more about astronomy, review the accompanying lesson called The Speed of Light: Distance & Light-Years. This lesson covers the following objectives:

  • Learn the speed of light per second
  • Understand the vast distances of space by learning about the distance of the Andromeda Galaxy
  • Grasp the concept of light giving a picture of the past by the time it reaches the naked eye
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