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Kepler's Three Laws of Planetary Motion

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

question 1 of 3

If a planet's average distance from the sun is 10 AU, what is its orbital period?

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1. If a planet's orbital period is 10 years, what is its average distance from the sun?

2. Kepler's Second Law states:

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About This Quiz & Worksheet

Using mathematics, Johannes Kepler was able to calculate the orbit of Mars over 500 years ago. You can too, using Kepler's three laws of planetary motion. This lesson covers Kepler's history and Kepler's laws of planetary motion.

Quiz & Worksheet Goals

In these assessments you'll be tested on key historical facts about Johannes Kepler and his three laws of planetary motion:

  • The orbital period of a planet if the planet's average distance from the sun is 10 AU
  • The planet's distance from the sun if a planet's orbital period is 10 years
  • Kepler's Second Law Of Planetary Motion
  • The term that is defined as the time it takes a planet to travel around the sun one time
  • The term that is defined as a curve surrounding two points called foci

Skills Practiced

  • Distinguishing differences - compare and contrast topics from the lesson, such as Kepler's First Law of Planetary Motion and Kepler's Second Law of Planetary Motion
  • Defining key concepts - ensure that you can accurately define main phrases, such as ellipse and orbital period
  • Interpreting information - verify that you can read information regarding Kepler's Second Law of Planetary motion and the speed of an orbiting planet in its orbit and interpret it correctly

Additional Learning

To learn more about Kepler and his laws of planetary motion, review the accompanying lesson Kepler's Three Laws of Planetary Motion. This lesson covers the following objectives:

  • Know who Johannes Kepler was and explain his background
  • Define ellipse and explain the components of an ellipse
  • Understand how Kepler's Second Law of Planetary motion explains the variable speeds of planets in their orbits
  • Define orbital period and know how to solve the orbital period for a planet that orbits 5.2 AU from the sun
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