Gravity in the Solar System: Shaping Planets & Stars


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What is gravity?

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1. Why can you not feel a force of attraction between you and the planet Mars?

2. Why can you not easily notice a force of gravity between a baseball and a tennis ball?

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About This Quiz & Worksheet

The quiz and worksheet will measure your understanding of gravity in the solar system. You should know about how often objects collide in the early solar system and the contributing factors that make planets and stars spherical to pass the quiz.

Quiz & Worksheet Goals

Use the assessment tools to check your understanding of the following:

  • Why gravity of small objects are not noticeable
  • The definition of gravity
  • Colliding objects in the early solar system
  • The factors that contribute to the spherical nature of plants and stars
  • Reason why a force of attraction can't be felt between people on Earth and the planet Mars

Skills Practiced

  • Reading comprehension- ensure that you draw the most important information from the related lesson on gravity
  • Knowledge application- use your knowledge to answer a question about the reason why a force of attraction can't be felt between people on Earth and the planet Mars
  • Information recall- access the knowledge you've gained regarding why gravity of small objects isn't noticeable

Additional Learning

To fully understand information about gravity, review the related lesson titled Gravity in the Solar System: Shaping Planets & Stars. The following objectives are found in this lesson:

  • Identify what gravity is and the factors that influence gravity
  • Learn about how gravity impacts the shape of planets and stars
  • Review what radial force is