* Gravity and Distance: The force of gravity is inversely proportional to the square of the distance between two objects. This means that the farther away you are from the center of the Earth, the weaker the gravitational pull.
* Mountains Increase Distance: Standing on top of a mountain puts you slightly farther away from the Earth's center than you would be at sea level.
* The Effect is Small: The difference in gravitational pull between sea level and the top of even the tallest mountain is very small, typically less than a tenth of a percent.
Think of it this way: Imagine Earth's gravity as a giant rubber sheet. If you place a heavy ball on the sheet, it creates a dip. The closer you are to the ball, the steeper the dip. A mountain is like a small bump on the sheet, making the dip slightly shallower at the top.
