Gravity Comic Strip

Gravity Comic Strip

Storyboard Text

  • Why are the planets staying in place around the Sun?
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  • That's because of gravity. Gravity is an invisible force that holds together all the objects in the universe. Which is based on mass and distance. Things with bigger mass are more attractive.
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  • And if that's true then why does the Moon go around the Earth and not the Sun or Jupiter?
  • So since the Sun has a bigger mass everything in the Solar System, the planets float around it?
  • Example One
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  • Yes. And if you remember what I said about distance being one of the factors, the more distance between objects the weaker gravity is. The Moon is closer to the Earth than it is to the Sun and Jupiter.
  • Okay. I´ve got a good one.
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  • So you´re telling me that because of the distance between things the gravity decreases and so the moon just attracts to the nearest large object?
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  • Yep. How about you come up with an example so I can see if you´ve got it down.
  • Say you have 3 magnets. Two big ones and a small one. You put one big one at the farthest end of a table one big one in the middle and the small one really close.
  • You put a nail closest to the small magnet. But the nail goes to the big magnet in the middle because objects with more mass have more gravity and it had less distance than the magnet at the far end of the table.
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  • Example Two
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  • I think you got it. Just to make sure. Answer this question. Why do humans stay on Earth instead of floating away to the Moon or another planet?
  • Example Three
  • Well Mike. That's easy. Gravity is stronger when an object has a larger mass and smaller distance. Even though humans have less mass than the Moon or a planet other than Earth, humans are closer to the Earth and therefore are going to be more attracted to it!
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  • Great job! That was spot on!
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