In the world surrounding us, there are numerous instances of motion. A car going on a road, remaining planets in their orbits around the sun, and waving of sea water are only a few examples of motion in the world. Scientists, physicist, and philosopher have been asking about motion continuously. The Greek Philosopher Aristotle (384-322 BCE) for instance, tried to find the factors that lead to motion. He said that moving objects were the result of a continuous force to keep them moving. If the force was removed, the object stops to move. Some sorts of motions were described by Aristotle as "natural". He argued that falling of rocks toward the ground is that because the ground is a natural place for rocks. The hotness of sun makes objects to be heat and rise to the air, so the rise of heat is natural. As far as the other forms of motion concerned, Aristotle classified them as "violent" since these forms of motion were not considered natural in his way of thought. His way of thinking took a dominant position in the minds of the Western intellectuals for two millenniums. But his ideas were not right, and the continuity of scholars' efforts in improving this concept of natural and violent motion gained no success. In the early seventeen century, Galileo, an Italian physicist, mathematician and astronomer, suggested a new way of glancing at the motion's issues. He emphasized on how things move. He argued that a moving object continuous to move. By the time of Galileo's death, Isaac Newton, who was an English Physicist and astronomer, was born. He gave a response to Galileo's proposal. He proposed the three law of motion which can describe the movement of objects.
What is Motion?.
Motion literally means movement. When an object continuously changes its position, it is in motion. Therefore, motion is a continuous change that occurs in the position of an abject. But a force is required to cause the change of positon.