The amount of force with which an object is pulled down to Earth is called weight. It's calculated using the following formula:

Weight (W) = Mass (m) × Acceleration due to gravity (g)

* Mass (m): The amount of matter in an object. It's measured in kilograms (kg).

* Acceleration due to gravity (g): The acceleration that an object experiences due to Earth's gravitational pull. It's approximately 9.8 m/s² near the Earth's surface.

Therefore, the weight of an object is directly proportional to its mass. A heavier object will experience a stronger gravitational force and thus have a greater weight.

Here's an example:

Let's say you have a 5 kg object. Its weight would be:

W = 5 kg × 9.8 m/s² = 49 Newtons (N)

Note:

* Weight is measured in Newtons (N), which is the SI unit of force.

* The acceleration due to gravity (g) can vary slightly depending on your location on Earth.

* Don't confuse weight with mass. Mass is a fundamental property of an object, while weight is a force acting on that object due to gravity.