There are a number of misconceptions and false beliefs regarding gravity in general. Let me give you some background information:
The Laws of Gravity were first described by Sir Isaac Newton (More About Newton’s Life) in his famous Principia. Before we talk about the misconceptions, lets get some background information to try and understand How does Gravity Work?

Newton’s Gravity can basically be considered as the following (concentrate hard on the following phrase from Wikipedia :p)

Every point mass attracts every other point mass by a force pointing along the line intersecting both points. The force is proportional to the product of the two masses and inversely proportional to the square of the distance between the point masses

Here’s the Math: , where:

• F is the Force in Newtons
• G is the gravitational constant (about 6,67.10^-11)
• m1 and m2 are the respective masses of the objects in question, in kilograms
• r is the distance between these objects in metres

Now that you understand the basics, here are the misconceptions:

The lighter object is more attracted than the heavier object
No! both object are attracted in the exact same way, the same force is applied to both. The difference is that the heavier object has more Inertia than the lighter one. What’s Inertia? Let’s explain it with an example: it’s much, much harder to move a 1000 kg football than to move a 200 g football. Basically, you need to apply less force and energy to a lighter object to make it move than to a heavier object. Therefore the lighter object moves the most. This also means that you make the sun move all the time…

Newton discovered gravity under an Apple Tree
Newton was an extremely egocentric man, he was mysoginistic (he hated women) and he reported that even though it actually isn’t true. It’s a legend, but legends are good for remembering things, and it makes us dream…

The Earth is just sitting in space
The Earth is not just sitting in space - the Earth is in free fall toward the Moon. It accelerates toward the Moon, because the Moon is pulling it. (At the same time, the Earth pulls on the Moon, so the Moon accelerates toward the Earth. Fortunately for us, the Earth and the Moon do not crash head-on because each has also a sideway speed, so they just end up orbiting the common center of mass

Remember that both object attract each other. The Moon orbits around the Earth, but the Earth also orbits around the Moon (it’s essentially the same situation, it depends what your looking to as a frame of reference.) Both the Moon and the Earth are dancing around one another.

No matter how old you are, you’ll always be attractive!
Clement