The gravitational pull on an object is expressed as its:

The gravitational pull on an object is accurately expressed as its weight. This is because weight is defined as the force exerted by gravity on an object's mass. Gravity acts on all objects with mass, pulling them toward the center of the Earth or any other celestial body. Therefore, weight is a measure of this force, typically quantified in units such as pounds or newtons.

While mass does relate to the quantity of matter in an object, it remains constant regardless of the gravitational pull, meaning that an object's mass does not change with location, while its weight can vary based on the gravitational field strength. For instance, an object would weigh less on the Moon than on Earth due to the lower gravitational force, but its mass would remain unchanged.

Length refers to a measurement of distance, and speed denotes how fast an object is moving; neither of these describes the gravitational pull. Thus, understanding that weight is the result of gravitational force acting on mass is key to grasping this fundamental concept in physics.