Do we know where gravity comes from?

We know from Isaac Newton and his law of gravitation that any two objects in the Universe exert a force of attraction on each other. This relationship is based on the mass of the two objects and the distance between them.

What two factors depend on gravity?

The magnitude of this force depends upon the mass of each object and the distance between the centers of the two objects. Mathematically, we say the force of gravity depends directly upon the masses of the objects and inversely upon the distance between the objects squared.

What are facts about gravity?

Basic Facts about Gravity. Gravity is the weakest of the four known fundamental forces of nature, yet it is the most dominant force. Even though it is the weakest force, Gravity holds together the entire solar systems and galaxies. The speed of freefall is consistent over the surface of the earth. This means all objects fall at the same speed.

What effects gravity?

The one effect is gravity. That is, the gravitational force is one way of explaining the phenomenon that we call gravity. Since it is a force, the effect is the same as any force: a contribution to the acceleration in the direction of the force. Again, this is only one effect.

What are some of the effects of gravity on Earth?

Gravitational force on the Earth cause objects to accelerate when they fall. The Earth’s gravity produces the same amount of acceleration on all objects, and they gain velocity at the same rate. Gravity pulls the objects toward the Earth, and they speed up as they get closer to the Earth.

Is gravity a theory or a law?

In 1915, Einstein published his Theory of General Relativity. It included an explanation for gravity. So, the answer to whether gravity is a law or a theory depends on what you are looking for. A statement of the apparent force between objects with mass, Newton’s Law of Universal Gravitation, is a law.