* Gravity depends on mass: The force of gravity is directly proportional to the mass of the objects involved. Larger masses exert a stronger gravitational pull.
* Gravity depends on distance: The force of gravity also weakens with distance. The further apart two objects are, the weaker the gravitational force between them.
Example:
* A feather and a bowling ball dropped from the same height will fall at the same rate in a vacuum (ignoring air resistance). This is because the force of gravity acting on each object is proportional to its mass, and the acceleration due to gravity is constant near the Earth's surface.
* However, the Earth's gravity pulls much more strongly on the bowling ball than on the feather because the bowling ball has a much larger mass.
In summary:
While the acceleration due to gravity is constant near the Earth's surface, the force of gravity itself depends on the mass of the objects involved and the distance between them.
