Sir Isaac Newton, who was from England, was the person responsible for creating the three laws of motion. A known fact about Newton was that he was born on the exact day that Galileo died, which was December 25, 1642. He is the same guy who is also known for the law of gravity that was of course made famous based on the apple that fell from the tree. In addition to being a scientist, he was also a theologian and a mathematician. He was actually the developer of calculus. Tons of scientists throughout numerous decades have tested his laws many times to prove that it was accurate. Even today, many scientists and mathematicians tend to use his laws within their experiments and teachings. The laws of motion can apply to anything whether it be a car, a human being, a ball, or even a planet. He is actually referenced to being the greatest scientists that has ever lived.
Newton's First Law
Newton's first law is actually about inertia. You've probably even heard it also being called the law of inertia. You may know that inertia is a property of matter. Within the first law, it basically states that if an object is at a resting state, it's going to continue to rest. If an object is moving, it's going to continue moving. To break it down even further, the only time it would change its state is if there was some external force. There are tons of examples that have to deal with the first law of motion. One example is that a book placed on the table will not move unless someone comes to pick it up. Another example can be made from toys that are put on the floor by toddlers. The toys won't move unless someone comes by to pick them up.
Newton's Second Law
The second law of motion details on how much force is needed to move an object. Not only does it talk about the force needed, but it also deals with the change of velocity going within the same direction as the force. The second law of motion has a familiar mathematical equation that is actually pretty common to most people. The equation, F = ma, typically states that force is the result of mass times acceleration. An example based upon the second law would be a car. When you put it in reverse, the car goes backwards. When the car is placed on drive, it goes forward. There are two proportions that have to deal with the second law: directly proportional and indirectly proportional. With directly proportional, if you're pushing the object twice as hard, then the acceleration will be twice as hard. Inversely proportional deals with the acceleration and mass of an object. For instance, if you're pushing two objects equally and Object B has six times more mass than Object A, the Object B is going to accelerate about one sixth of the acceleration of Object A.
Newton's Third Law
The third law of motion based on Newton states that with every force, there is both an equal force in the opposite direction. A great example based on the third law would be swimming. When you're swimming you're pushing the water behind while the water is pushing you in the opposite direction in which you go forward. You can also think of an example with using the flying motion of birds. Air is pushed downwards from the wings of the bird; therefore, the air is keeping the bird upwards. So basically the third law of motion can be used whether the direction is horizontal or vertical.
Most people tend to get more confused with the second law of motion than with the first or the third one. That's because the second law of motion tends to be more complex than the others. It goes in depth with acceleration and the rate that one object is going. Although scientists tend to use these laws, they still even today try to find ways to discredit some of the things that are said based upon their research versus Newton's. People within many professions tend to use the law of motion for many things. You can find doctors, teachers, even sales associates using the law of motion without really realizing it. If you really think about it, even you are using the law of motion right now!Written by Margarita Hakobyan
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