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Astronomy & Orbits Quizzes, Questions & Answers

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Explore how planets, moons, and satellites move in predictable, repeating paths. In this quiz, you will identify the amplitude, period, and phase shift of orbital models, understand circular and elliptical motion, and determine...

Questions: 20  |  Attempts: 11   |  Last updated: Dec 11, 2025
  • Sample Question 1
    A planet’s x-position (in AU) is modeled by x(t) = 2 cos(π t), where t is in years and the y-position is y(t) = 2 sin(π t). What is the orbital period?
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  • Sample Question 2
    A moon’s orbital radius is 420,000 km and its angular speed is ω = 2π/27.3 per day. Which equation gives the moon’s x-position (km) if at t = 0 it is at maximum x?
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  • Sample Question 3
    A satellite’s radial distance r(t) from Earth is modeled as r(t) = 6800 + 50 sin(4π t), in km, t in hours. What is the period of its radial oscillation?
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