Here's a breakdown:

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

* Weight: Weight is the force of gravity acting on an object's mass. It's essentially how hard gravity is pulling on the object.

So, the reason we perceive an object as heavy is because of the gravitational pull between the object and the Earth. The more massive the object, the stronger the gravitational pull, and the heavier we perceive it to be.

Important Note:

While weight is influenced by gravity, it's not the same as mass. Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass. An object's mass remains the same regardless of its location, but its weight can change depending on the gravitational field it's in (for example, an object weighs less on the moon than it does on Earth).