The measure of the force of gravity on an object is called weight.

Here's a breakdown:

* Gravity: A fundamental force that attracts any two objects with mass. The more massive the objects, the stronger the gravitational pull.

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

Important Note: Weight is not the same as mass. Mass is a measure of the amount of matter in an object, while weight is the force of gravity acting on that mass.