It's important to understand that gravity doesn't depend on the mass of an object itself, but rather on the mass of the planet or celestial body it's near.

Here's why:

* Gravity is a force of attraction between objects with mass. The more massive an object, the stronger its gravitational pull.

* A 1 kg block has a mass, but it's very small compared to the Earth. The Earth's mass is significantly larger, so it exerts a much stronger gravitational force on the block.

So, the gravity on a 1 kg block is the same as the gravity on anything else on Earth.

To be precise, the acceleration due to gravity on Earth is approximately 9.81 m/s², meaning that objects accelerate downwards at that rate.

What you might be asking is about the force of gravity acting on the block. That force can be calculated using Newton's Law of Universal Gravitation:

* F = G * (m1 * m2) / r²

* F = force of gravity

* G = gravitational constant (6.674 x 10⁻¹¹ N m²/kg²)

* m1 = mass of the Earth

* m2 = mass of the block (1 kg)

* r = distance between the center of the Earth and the block (approximately Earth's radius)

This calculation would give you the force of gravity acting on the 1 kg block.