Question

Explain how Einstein’s contribution to understanding the force between the earth and the moon differed from Newton’s. Include a brief statement of Einstein’s explanation in your answer.

Answer 1

Answer:

Einstein used Space-time as a physical interaction whereas Newton used the concept of gravity to explain the force between earth and the moon.

Explanation:

The force between the earth and the moon or any two bodies which have mass is Gravitational force.

• Einstein produced General Theory of Relativity, and it offered a very different explanation from Newton's Law of Universal Gravitation. Einstein didn't believe gravity was a force at all; he said it was a distortion in the shape of space-time, otherwise known as "the fourth dimension".

• Newtonian physics states that if there are no external forces at work, an object will always travel in the straightest possible line.

• Newton described gravity by principle of action at a distance meaning a field - gravitational field between the Earth and the moon and similarly and two bodies in the universe exist. this in turn responsible for gravitation forces between and two bodies.

• Einstein described gravity by suggesting that the space-time around any object is bent. The degree of bent is corresponding to how massive is the object.

• For example- Supposed you keep a plastic ball and an iron ball on a soft sofa. the space around the iron ball will naturally be bent more due to it been heavy. It is due to this bending that we feel that there is some sort of interaction between any two bodies. In short Einstein's explanation of gravity is more geometrical than actual physical interaction between any two objects.