Gravity Depends on Mass Practice Test

On Earth, $g \approx 10\ \text{N/kg}$. A book has a mass of 1.5 kg.

What is the book's weight (gravitational force) on Earth?

A simulation keeps the distance between two objects the same and keeps one object’s mass fixed. Only the other object’s mass changes.

Changing mass (kg) | Gravitational force (N)

1 | 2

2 | 4

4 | 8

What pattern does the simulation show?