1. PHYSICS PROJECT
Sir Isaac Newton ( )

2. Childhood Birth PHYSICS PROJECT -- PHYSICISTS
At the Christmas Day of 1642, Isaac Newton was born in Lincolnshire, England.
Here is Lincolnshire
Isaac Newton

3. Childhood Childhood Unhappy Childhood PHYSICS PROJECT -- PHYSICISTS
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

4. Childhood Childhood Going to school PHYSICS PROJECT -- PHYSICISTS
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

5. Childhood Childhood Studying or farming? PHYSICS PROJECT -- PHYSICISTS
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

6. Story of Apple Tree Great Plague in 1665 PHYSICS PROJECT -- PHYSICISTS
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

7. Story of Apple Tree Story of Apple Tree The fallen apple
PHYSICS PROJECT -- PHYSICISTS
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

8. Story of Apple Tree Story of Apple Tree The fallen apple
PHYSICS PROJECT -- PHYSICISTS
PHYSICS PROJECT -- PHYSICISTS
The fallen apple
Then Newton discovered the law of gravitation. It is his first discovery in force.
The apple was attracted by the gravity of the Earth!
Why did the apple fall down to the Earth, but not fly away to the outer space?
Isaac Newton

9. Important Achievement
PHYSICS PROJECT -- PHYSICISTS
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

10. Important Achievement Important Achievement
PHYSICS PROJECT -- PHYSICISTS
PHYSICS PROJECT -- PHYSICISTS
Law of gravity
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

11. Important Achievement Important Achievement
PHYSICS PROJECT -- PHYSICISTS
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

12. Important Achievement Important Achievement
PHYSICS PROJECT -- PHYSICISTS
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

13. Important Achievement Important Achievement
PHYSICS PROJECT -- PHYSICISTS
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

14. Declining years Events in the declining years
PHYSICS PROJECT -- PHYSICISTS
PHYSICS PROJECT -- PHYSICISTS
Events in the declining years
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

15. Declining years Declining years Events in the declining years
PHYSICS PROJECT -- PHYSICISTS
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.
Greenwich Astronomical Observatory
Isaac Newton

16. Declining years Declining years Death PHYSICS PROJECT -- PHYSICISTS
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

17. Group Members Ho Ka Ho Lee Hon Ping Li Chun Kit Ma Wai Chi 3A14 3A22
PHYSICS PROJECT -- PHYSICISTS
PHYSICS PROJECT -- PHYSICISTS
Ho Ka Ho
Lee Hon Ping
Li Chun Kit
Ma Wai Chi
3A14
3A22
3A28
3A29
Isaac Newton