Prayer

Greetings: Good Morning! Today

we are about to discuss the different physicist who has great contribution in our society. In terms of inventions, principles, theories and others which we used nowadays.

Motivation:

Energizer:

Physicist: Their Role

in the Society

Introduction

Physicists are the scientists who study the field of physics in great detail. They conduct research into physical phenomena or the natural science that involve the study of matter and related concepts. They analyze the general happenings in nature and try to understand how the universe behaves. On the basis of research through observation and experiments, they discover physical laws and propound theories that explain the functioning of natural forces like gravity, electromagnetism, and nuclear interactions

The discovery of new physical laws and theories contribute to the existing base of theoretical knowledge and can also be used for more practical applications such as development of medial equipment, electronic devices, nuclear reactors, etc. During the earlier days, physics was considered a field of philosophy; it was only during the 19th century that physics was realized as a discipline separate from philosophy.

Isaac Newton Born on January 4, 1643, in

Woolsthorpe, England, Isaac Newton was an established physicist and mathematician, and is credited as one of the great minds of the 17th century Scientific Revolution. With discoveries in optics, motion and mathematics, Newton developed the principles of modern physics.

In 1687, he published his most acclaimed work, Philosophiae Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), which has been called the single most influential book on physics. Newton died in London on March 31, 1727.

Isaac NewtonHe formulated

the laws of motion and the universal law of gravitation

Benjamin Franklin Born in Boston in 1706, Benjamin

Franklin organized the United States’ first lending library and volunteer fire department. His scientific pursuits included investigations into electricity, mathematics and mapmaking. He helped draft the Declaration of Independence and the U.S Constitution, and negotiated the 1783 Treaty of Paris, which marked the end of the Revolutionary War.

Benjamin FranklinHe is noted for his experiment

on electricity. His renowned kite experiment to study the lightning led him to the to the invention of the lightning rod.

Michael FaradayMichael Faraday was born on September

22, 1791 in London, England, UK. He was the third child of James and Margaret Faraday. His father was a blacksmith who had poor health. Before marriage, his mother had been a servant. The family lived in a degree of poverty.

Michael Faraday attended a local school until he was 13, where he received a basic education. To earn money for the family he started working as a delivery boy for a bookshop. He worked hard and impressed his employer. After a year, he was promoted to become an apprentice bookbinder.

Michael FaradayHis invention was

the generator, which worked on the principle that magnets can be used to produce electric current.

Wilhelm Roentgen Wilhelm Conrad Röntgen was

born on March 27, 1845, at Lennep in the Lower Rhine Province of Germany, as the only child of a merchant in, and manufacturer of, cloth. His mother was Charlotte Constanze Frowein of Amsterdam, a member of an old Lennep family which had settled in Amsterdam.

Wilhelm RoentgenHe discovered X-

rays in 1895. studies on radioactivity led to the development of nuclear physics

Albert Einstein Albert Einstein was born at Ulm, in

Württemberg, Germany, on March 14, 1879. Six weeks later the family moved to Munich, where he later on began his schooling at the Luitpold Gymnasium. Later, they moved to Italy and Albert continued his education at Aarau, Switzerland and in 1896 he entered the Swiss Federal Polytechnic School in Zurich to be trained as a teacher in physics and mathematics.

In 1901, the year he gained his diploma, he acquired Swiss citizenship and, as he was unable to find a teaching post, he accepted a position as technical assistant in the Swiss Patent Office. In 1905 he obtained his doctor's degree.

Albert EinsteinHe formulated

the theory of relativity and his famous equation, E=mc

Quiz:1. Who formulated the theory of

relativity?2. What did Isaac Newton conclude after

hit by the falling apple?3. Why does William Roentgen named X-

ray?4. What famous experiment by Benjamin

Franklin who helps him to study lightning?

5. Who invent the Generator?

Prepared by: Aljie Madrazo BSEd 303