Gravitational forces between objects depend on their masses and the distances between them from "summary" of Physics 11 by British Columbia. Schools Department. Curriculum Development Branch
The gravitational force between two objects is determined by the mass of each object and the distance between them. This means that the larger the mass of an object, the greater the gravitational force it exerts. For example, a planet with a greater mass will have a stronger gravitational pull than a smaller planet. Additionally, the distance between two objects also plays a crucial role in determining the gravitational force between them. The gravitational force decreases as the distance between two objects increases. This can be explained by the inverse square law, which states that the gravitational force is inversely proportional to the square of the distance between two objects. Therefore, if the distance between two objects doubles, the gravitational force between them decreases by a factor of four. It is important to note that gravitational force is a vector quantity, meaning it has both magnitude and direction. The direction of the gravitational force between two objects is always attractive, pulling the objects towards each other. This is why planets orbit around stars and moons orbit around planets, due to the gravitational force between them. In summary, the gravitational force between two objects depends on their masses and the distance between them. The larger the mass of an object, the greater its gravitational force, and the closer two objects are, the stronger the gravitational force between them. Understanding these principles is essential for explaining the motion of celestial bodies in the universe.
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