Gravity and Space Test Knowledge
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Questions and Answers

What is the force equation for gravity?

  • Force = mass / gravity
  • Force = mass - gravity
  • Force = mass x gravity (correct)
  • Force = mass + gravity
  • What is the main component of the Sun?

  • Carbon and oxygen
  • Oxygen and nitrogen
  • Helium and nitrogen
  • Hydrogen and helium (correct)
  • What causes the polar auroras in the Northern hemisphere?

  • Solar winds (correct)
  • Atmospheric pressure changes
  • Earth's magnetic field
  • Reflection of sunlight
  • What is the difference between meteors and meteoroids?

    <p>Meteors are when they enter the atmosphere; meteoroids are solid debris originating from the solar system</p> Signup and view all the answers

    What did Copernicus prove about Earth's motion?

    <p>It revolved around the sun</p> Signup and view all the answers

    What is the force equation for gravity?

    <p>Force = mass x gravity</p> Signup and view all the answers

    What is the age of the universe according to the big bang/nebular theory?

    <p>13.7 billion years</p> Signup and view all the answers

    What are the main components of comets?

    <p>Snow, ice, rock, dust, and carbon compounds</p> Signup and view all the answers

    What causes the visible impacts known as craters on planets?

    <p>Asteroids and meteorites</p> Signup and view all the answers

    What celestial event marks the start of Spring and Fall when there is an equal amount of day and night?

    <p>Equinox</p> Signup and view all the answers

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