PHYSICS PROJECT Sir Isaac Newton 1642 1727 Childhood
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PHYSICS PROJECT Sir Isaac Newton (1642 - 1727)
Childhood PHYSICS PROJECT --- PHYSICISTS Birth At the Christmas Day of 1642, Isaac Newton was born in Lincolnshire, England. Here is Lincolnshire Isaac Newton
Childhood PHYSICS PROJECT --- PHYSICISTS Unhappy Childhood Unfortunately, Newton’s father was dead three months before Newton was born. When Newton was three, his mother remarried with a rector. Newton was then kept by his grandmother. Woolsthorpe, the village Newton lived in Isaac Newton
Childhood PHYSICS PROJECT --- PHYSICISTS Going to school In the year 1655, Newton started studying in King's School in Grantham. Like the other famous scientists, Newton’s result at school was not good. The old King’s School in Grantham Isaac Newton
Childhood PHYSICS PROJECT --- PHYSICISTS Studying or farming? When Newton was sixteen, he was asked to be a farmer by his mother. Luckily, with the support of his uncle and the school principal, Newton could continue his study. In the year 1661, Newton got into Trinity College, Cambridge as a fellow. Trinity College, Cambridge Isaac Newton
Story of Apple Tree PHYSICS PROJECT --- PHYSICISTS Great Plague in 1665 In 1665, London was badly affected by the Great Plague. So Newton was forced to return home. During this period, he tried to solve some difficult problems. One of them is about gravity. A picture showing the Great Plague in 1665 Isaac Newton
Story of Apple Tree PHYSICS PROJECT --- PHYSICISTS The fallen apple In one afternoon, Newton was sitting under a apple tree near his house, thinking about the problem of gravity. Suddenly, an apple fell down from the tree. He thought: Why did the apple fall down to the Earth, but not fly away to the outer space? Isaac Newton
Story of Apple Tree PHYSICS PROJECT --- PHYSICISTS The fallen apple Then Newton discovered the law of gravitation. It is his first discovery in force. The apple Why did the was apple attracted fall by down the gravity to theof. Earth, the Earth! but not fly away to the outer space? Isaac Newton
Important Achievement PHYSICS PROJECT --- PHYSICISTS Introduction Isaac Newton is a great physicist. His discovery greatly affects our scientific development, especially in optics and force. However, we will only focus on the discovery in force. Newton’s discovery in optics: dispersion by a prism Isaac Newton
Important Achievement Law of gravity PHYSICS PROJECT --- PHYSICISTS • Everything has its gravity • Gravity is affected by: • Mass • Distance • Gravitation force Since the Moon is smaller than the Earth, its gravity is also smaller than the Earth’s Isaac Newton
Important Achievement PHYSICS PROJECT --- PHYSICISTS Newton’s first law of motion (Law of Inertia) • If no force acts on a body, it will: • stay rest, or • continue to move at steady speed in a straight line A satellite can move around the Earth because of the law of inertia. Isaac Newton
Important Achievement PHYSICS PROJECT --- PHYSICISTS Newton’s second law of motion • Acceleration (increase on speed) of a body is: • directly proportional to the force acted • inversely proportional to the mass The heavier you kick, the faster the ball moves Isaac Newton
Important Achievement PHYSICS PROJECT --- PHYSICISTS Newton’s third law of motion (Law of action and reaction) When object A exerts a force on object B, object B will also exert a force of equal magnitude and opposite direction on object A. Rocket makes use of action and reaction rise itself Isaac Newton
Declining years Events in the declining years PHYSICS PROJECT --- PHYSICISTS Newton did not stop working in his declining years. In 1703, Newton became the chairman of the Royal Society. In 1704, he published the book “Opticks”. The book “Opticks”, talking about study of light Isaac Newton
Declining years PHYSICS PROJECT --- PHYSICISTS Events in the declining years In 1705, Newton was knighted by Queens Anne. He was the first scientist who is knighted. In 1710, Newton became the chairman of Greenwich Astronomical Observatory Isaac Newton
Declining years PHYSICS PROJECT --- PHYSICISTS Death In Newton’s declining years, he suffered from diabetes, chololithiasis and pneumonia. 20/3/1727, Sir Isaac Newton passed away, at the age of 84. Simon Church in London, where Newton was buried Isaac Newton
PHYSICS PROJECT --- PHYSICISTS Group Members Ho Ka Ho Lee Hon Ping Li Chun Kit Ma Wai Chi 3 A 14 3 A 22 3 A 28 3 A 29 Isaac Newton
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