Question

Define Rotation and Revolution.

Answer 1

Hint: The earth along with other planets and heavenly bodies are not stationary and keep on moving. Basically, these movements are classified into two types namely rotation and revolution. These two movements of the heavenly bodies, specifically earth result in the phenomena of day and night and seasonal changes.

Complete Answer:Earth is constantly moving. The sun stationery and our planet Earth keeps on moving on its axis and around the sun. This movement takes place in a predefined orbit and does not overlap with the path or orbit of any other heavenly body. One of the two movements of the earth is rotation. Rotation can be defined as the movement of the earth on its axis. This means that the Earth keeps on rotating on its own and this movement of Earth results in the phenomena of day and night.

Another movement of the earth is known as revolution. This movement of Earth that is Revolution can be defined as the movement of Earth around a stationary object that is the sun in a predefined elliptical orbit. This movement of the earth around the sun results in seasonal changes across the world. Therefore, the Earth is constantly rotating on its axis and at the same time, it is revolving around the sun.

Note: All eight planets in the solar system along with asteroids and some other heavenly bodies revolve around the sun in a predetermined path known as orbit. The speed of rotation and revolution of these bodies differs as it depends on various factors such as the size of the body, distance from the sun, and others.