Something is confusing me... 1. If I drop a cannonball and a feather in a vacuum they will fall to Earth at the same rate. The mass and size of the objects do not appear to be affecting the 'strength' of the gravitational force acting upon it. 2. The Earth's gravity is stronger than the Moon's, because the Earth is more massive. How can both these statements be true? I must be missing something. It looks like mass doesn't matter in the first statement but in the second statement it does?! Please help!