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Neptune Quiz

If you know anything about Neptune you should like it and if you don't know anything about Neptune you could learn a lot from this quiz. Good Luck! 10 Questions.

 
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prakasan
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1

Which astronomer predicted the existence of Neptune, then used calculations to find it?

  • Johann Galle
  • George Airy
  • William Herschel

2

On which day (or should I say night?) was Neptune discovered?

  • September 23, 1846
  • March 13, 1781
  • December 6, 1874

3

What is the density of Neptune (in kilograms per meter cubed)?

  • 1,670
  • 1,430
  • 1,580

4

What is the radius of Neptune?

  • 14,760 miles
  • 15, 500 miles
  • 14,230 miles

5

What is the surface temperature of Neptune?

  • 51 K
  • 59 K
  • 44 K

6

What is the surface magnetic field of Neptune (relative to Earth)?

  • 0.6
  • 1.4
  • 0.4

7

What is the surface gravity of Neptune (relative to Earth)?

  • 1.18
  • 1.07
  • 1.34

8

What is Neptune's rotation period in Earth days?

  • 0.67
  • 0.87
  • 0.74

9

Neptune has the fastest winds on its surface in the solar system. How fast can these tremendous winds go?

  • 1300 mph
  • 1500 mph
  • 1650 mph

10

Neptune's surface has one lasting storm on it. What is it?

  • Great Dark Spot
  • Great Red Spot
  • Great Blue Spot

 

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