Here's how it works:

* Gravity: A fundamental force that attracts any two objects with mass.

* Mass: A measure of the amount of matter in an object.

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

Formula for Weight:

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

* g: The acceleration due to gravity is approximately 9.81 m/s² on Earth's surface.

Example:

Let's say you have a mass of 50 kg. Your weight on Earth would be:

W = 50 kg * 9.81 m/s² = 490.5 N (Newtons)

Important Notes:

* Weight is a force: It has both magnitude and direction.

* Weight is not the same as mass: Mass is a scalar quantity (only magnitude), while weight is a vector quantity (magnitude and direction).

* Weight can vary: Weight changes depending on the gravitational force acting on the object. For example, your weight would be different on the Moon because the Moon's gravity is weaker than Earth's.