Exactly what Gillianren said. Here's a good page (by the BA himself
) nicely explaining & illustrating the relative effects of gravity & tidal forces of the solar system bodies on the Earth:
http://www.badastronomy.com/bad/misc/planets.html
As you can see, Jupiter contributes only one hundredth of the gravity (maximum) than of our own moon, which itself only has a force on us of 3 millionths of Earth's!
Oh, forgetting my manners; welcome to the board AquarianEssence, I hope you stick around & learn many things about Astronomy here, I have
(Incidentally, that particular page has personal significance for me since it was by finding this, while attempting to allay a friends fears about May 2000, that I first discovered Bad Astronomy!
was that really over 7 years ago?!).