Sir Isaac Netwon
Nov 28, 2021
Good afternoon. My name is Abigail Naylor. And today we are going to be learning about the life and discoveries of Sir Isaac Newton. Newton's law of motions are important because they are the foundation of classical mechanics. One of the main branches of physics. Mechanics is the city of how objects move or do not move when forces are acted upon them. Newton's law of motion explains the relationship between a physical object and forces acting upon it. Understanding this information provides us with a basics of modern physics. Newton worked in many areas of mathematics and physics. And by developing his three laws of motion, Newton revolutionized science. Newton's laws together with Kepler's laws, explain why planets move in elliptical orbits rather than in circles. Newton discovered his law of motion in 1666, when he was only 23 years old. Newton's laws refer to the motion of an object in an inertial reference frame. Which can be described as a system in which an object remains at rest or moves with constant linear velocity. Unless acted upon by an external force. When Newton discovered gravity, he washed a falling apple while thinking about the forces of nature. Newton realized that some force must be acting upon the falling object like apples, because otherwise, they would not start moving from rest. Newton's law of cooling states that at the rate at which an object cools is proportional to the difference in temperature between the object and the object's surroundings. Simply put, a glass of hot water will cool down faster in a cold room than in a hot room. Newton changes the way we understand the universe. Contributing significantly to the field of science in his own lifetime. He discovered the laws of gravity and motion and invented calculus. He helped to shave our rational worldview. Newton developed the three laws of motion, which formed the basic principles of modern physics. His discovery of calculus led the way to more powerful methods of solving mathematical problems, as well as providing a clear understanding of optics. But his most significant work had to do with forces. And specifically with the development of the universal law of gravity. Newton's laws are very important because they tie into almost everything we see in everyday life. These laws tell us exactly how things move or sit still. Like why you don't float out of bed or fall through the floor of your house. So thank news laws every action and reaction and every time you drive somewhere. Sir Isaac Newton was born to a widowed mother in wool short, Lincolnshire, England. On January 4th, 1863. His father died three months prior, and he was not expected to survive. Being that he was so tiny and weak. Shortly after, noon was sent by his stepfather the well to do minister Barbanas Smith to live with his grandmother and was separated from his mother until smith's death in 1653. After interrupted attendance at the grammar school in grantham, lincolnshire, England. Isaac noon finally settled down to university. Going on to Trinity College in Cambridge. In 1661. Somewhat older than his classmates. There, he immersed himself in Aristotle's work and discovered the works of Rene Discartes. Before graduating in 1865 with a bachelor's degree. Some of his prominent discoveries were a body at rest will remain at rest, and a body in motion will remain in motion, unless it is acted upon by an external force. If an object is stationary, it will not begin to move by itself. If an object is moving, it's speed and direction won't change, unless something makes it change. This is often referred to as the law of inertia. The second law is the force acting upon an object is equal to the mass of that object times its acceleration. Objects will move faster and faster when they are pushed harder. And heavier objects need more force to move the same distance as lighter objects. And the third one, for every action, there is an equal and opposite reaction. When an object is pushed in one direction, there is always an equal resistance from the opposite direction. This can be used to explain how rockets work. To more of his discoveries, where Newton's law of universal gravitation. Every material object attracts any material object with a force that varies directly as the product of the masses of the optics. And inversely, as the square of the distance separates the objects. Newton's law of cooling states that the rate of heat loss of a body is proportional to the difference in temperature between the body and its surroundings. Some interesting facts about Newton is that Newton's mother actually warned him to quit school. And to become a farmer. At 15 or 16, he was actually ordered to quit school and return home. As a professor at Cambridge, his lectures were poorly attended. He did not so much interest in teaching or his students. And Newton was also knighted by Queen Anne. Some test questions that I would ask would be when and where we're sure Isaac Newton born. What college did Newton attend, and where did he receive his bachelor's degree? What was Newton's most well-known discoveries? The demonstration I had would be over Newton's third law of emotion, which states for every action there is an equal and opposite reaction. When an object is pushed in one direction, there is always an equal resistance from the opposite direction. I explain that this can be used to help us know how a rocket works. So it's powerful engines, this is our rocket. Its powerful engines push down on the ground, which is the action. And the resistance from the ground pushes the rocket upwards with equal force. Which is the reaction. A rocket engine produces thrust through action and reaction. Binge and produces hot exhaust gases which flow out the back of the engine. In reaction, a thrusting force is produced in the opposite reaction.