- Law

The First Law of Newton

Sir Isaac Newton is quite an important figure when it comes to physics. He was born on January 4, 1643 and passed away on March 31, 1727. He contributed a lot of work and evidence to explain to people how things worked and why they worked the way they did. An example of his many works when it comes to physics is his First Law of Motion, which is also known as the law of inertia.

The First Law of Motion or the law of inertia states how an object in rest will stay in rest, and how an object in motion will stay in motion with the same speed and direction unless acted upon by an outside unbalanced force. Galileo had originally thought of the law of inertia but later on, Newton refined his ideas and incorporated them into his own. Inertia is by meaning, the tendency of an object to resist change in motion.

Furthermore on the idea of the first law, an object continues to do whatever it was doing before a force exerts itself upon it. An object staying in place will continue to stay in place and an object in motion will continue with its motion without changing either its speed nor its direction. A key component to this law is force. By definition, force is a push or a pull. The force’s source can be ranging from gravitational force to magnetic force to even muscle force. A more specific type of force that affects this law is net force. Net force is when multiple forces act upon an object. An example of net force is when a group of people are playing tug of war. Both sides are pulling with an amount of force. If both sides are even, they are pulling with an even amount of net force, and when one side loses, it can be caused by one side pulling with a greater amount of net force or because one side pulled with a smaller amount of force.

A soccer ball can demonstrate Newton’s First Law of Motion. The first part of Newton’s law states that an object staying at rest tends to remain at rest. For the example, the soccer ball will stay still on the ground. The soccer ball will move when touched by a person or kicked by a person, and will stop when gravity’s force pulls it down or when a person stops it by catching it or hitting it or the force of friction brings it to a stop. When this occurs, it demonstrates the second part of Newton’s First Law, which is that an object in motion will continue to be in motion with the same speed and direction unless acted upon by another force.