Here's why:

* Gravity: Gravity is a force of attraction between any two objects with mass. The more massive the object, the stronger its gravitational pull.

* Weight: Weight is the force of gravity acting on an object's mass. It's measured in units like Newtons (N) or pounds (lbs).

While the terms "gravity" and "weight" are often used interchangeably, it's important to remember that:

* Gravity is the force itself.

* Weight is the effect of that force on a specific object's mass.