The amount of force that gravity pulls down on something is called weight. It's represented by the symbol w.

Here's the breakdown:

* Weight (w): The force of gravity acting on an object's mass.

* Mass (m): The amount of matter in an object.

* Acceleration due to gravity (g): The acceleration experienced by an object due to gravity (approximately 9.8 m/s² on Earth).

The formula to calculate weight is:

w = m * g

So, the weight of an object is equal to its mass multiplied by the acceleration due to gravity.