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Questions about Gravity

  1. Jul 22, 2010 #1
    If you have a small object next to a large object, the larger object should have a greater gravitational pull on the small object and the smaller object should approach the larger object at a faster rate than then larger approaches the smaller, correct?

    So now if you put another small object on the opposite side of the large object, do the two small objects have ANY effect on each other, or does the large object block the effect of the smaller objects?

    A good example: During a Lunar Eclipse (the moon in our shadow, opposite the sun), does the Sun have any gravitational effect on the moon?
  2. jcsd
  3. Jul 22, 2010 #2


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    Gold Member

    There's no blocking and both bodies in your first example experience the same pull (force) but yes, the smaller one moves faster.
  4. Jul 22, 2010 #3

    Doc Al

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    Staff: Mentor

    No, they exert the same gravitational force on each other.
    Yes, the acceleration of the smaller object will be greater.

    The two small objects will exert forces on each other. The large object does not block their interaction. (You can't block gravity.)

  5. Jul 22, 2010 #4
    Thanks -- just trying to research more on Gravity and Google is sometimes hard to place the correct keyword to find an answer to your question.
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