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Physics

Problems

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Problems

7.1 Kepler's Laws of Planetary Motion

17.

The closest Earth comes to the sun is 1.47×108 km, and Earth’s farthest distance from the sun is 1.52×108 km. What is the area inside Earth’s orbit?

  1. 2.23×1016 km2
  2. 6.79×1016 km2
  3. 7.02×1016 km2
  4. 7.26×1016 km2
18.

Earth is 1.496×108 km from the sun, and Neptune is 4.490×109 km from the sun. What best represents the number of Earth years it takes for Neptune to complete one orbit around the sun?

  1. 10 years
  2. 30 years
  3. 160 years
  4. 900 years
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