The force of gravity on an object or person is known as weight.

Here's why:

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

* Weight: This is the force exerted on an object due to gravity. It's essentially the measure of how strongly gravity pulls on that object.

So, while gravity is the underlying force, the specific force acting on an object due to that gravity is called weight.