Meteors, Asteroids, and Orbits Review

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Across
  1. 3. this axis is half of the short side of an ellipse
  2. 5. an oval shape centered on two points
  3. 8. the farthest point in a planet's orbit to the sun
  4. 10. this meteor caused a mass extinction event
  5. 12. the eccentricity of a circle
  6. 13. this type of force is only attractive
  7. 15. how flat or round the shape of an ellipse is
Down
  1. 1. gravitational force is ______ proportional to mass
  2. 2. Kepler's Law that says planets move in elliptical orbits
  3. 3. Kepler's Law that says planets sweep equal areas in equal time
  4. 4. gravitational force is ____ proportional to the square of the distance between two objects
  5. 6. the closest point in a planet's orbit to the sun
  6. 7. this axis is half of the long side of an elliptical orbit
  7. 9. gravitational field strength has units of this
  8. 11. the center of mass between a planet and sun that both orbit
  9. 14. the eccentricity of a straight line