Geoid and Ellipsoids in Geodesy
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Questions and Answers

What does Newton's law of universal gravitation state?

  • Gravity potential is solely determined by the masses of two bodies
  • Any two bodies in the universe, possessing mass, exert gravitational attraction on each other (correct)
  • The gravitational force is directly proportional to the square of the distance between two bodies
  • The gravitational constant is dependent on the mass of the attracting body

    • What is the force used to represent the attractive force between two bodies?

  • m
  • F (correct)
  • G
  • r

    • What does the geoid represent?

  • The reference ellipsoid of the Earth
  • The mathematical shape of the Earth
  • The gravitational potential of the Earth
  • The physical shape of the Earth (correct)

    • How is a reference ellipsoid different from the geoid?

    <p>It is a close approximation of the geoid</p> Signup and view all the answers

    Which mass is referred to as the attracting mass in geodesy?

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

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