Presentation Physics

Lesson 3 The Physicists: Their Role in Society : 

Lesson 3 The Physicists: Their Role in Society

Do you want to know who are the people behind the development of physics? : 

Do you want to know who are the people behind the development of physics?

The succeeding discussion will give you answers to these queries. : 

The succeeding discussion will give you answers to these queries.

Slide 4: 

Galileo Galilei (1564-1642) He studied the behavior of falling bodies and formulated laws covering the behavior of these objects. He discovered that the planets move in an elliptical orbit. The laws of Kepler are used in calculating the flight paths of today’s space vehicle. Johannes Kepler (1571-1630)

Slide 5: 

Robert Boyle (1627-1691) He formulated Boyle’s law, which states that at constant temperature the volume of gas is inversely proportional to pressure. Sir Isaac Newton (1642-1727) He formulated the laws of motion and the universal law of gravitation.

Slide 6: 

Benjamin Franklin (1706-1790) He is noted for his experiments on electricity. His renowned kite experiment to study lightning led him to the invention of the lightning rod. Michael Faraday (1791-1867) His invention was the generator, which worked on the principle that magnets can be used to produce electric current.

Slide 7: 

James Maxwell (1831-1870) He worked on electromagnetism and made important contributions to the development of the kinetic theory of gases. Wilhelm Roentgen (1845-1923) He discovered x-rays in 1895. Studies on radioactivity led to the development of nuclear physics. Henri Becquerel (1851-1908) He discovered radioactivity in 1896. Just like Roentgen’s discovery, his study led to the development of nuclear physics.

Slide 8: 

Max Planck (1858-1947) A German physicist who formulated the quantum theory, which is the basis of quantum mechanics. Albert Einstein (1879-1955) He formulated the theory of relativity and his famous equation, E = mc2.

Getting to know our Filipino scientists : 

Getting to know our Filipino scientists

Slide 10: 

Arturo Alcaraz was responsible for the discovery of geothermal energy in the country. Melecio Magno worked as an atmospheric physicist. He studied how the principles of physics are applied to the study of weather elements. Further, he explained how the laws of thermodynamics explain the different phase changes. Christopher Bernido provided the rationale for the unification of the four fundamental interactions of elementary particles. 4. Henry Ramos is famous for his first plasma experimental device, which can produce gases that can be manipulated for the generation of energy.

Slide 11: 

5. Benjamin Almeda is known as the Thomas Edison of the Philippines. He invented the automatic cooler and the electric grinder. 6. Gregorio Zara is the inventor of an aircraft engine using alcohol as fuel with an airplane propeller that is made of local materials. He also invented the video telephone.

Slide 12: 

7. Aluminada dela Rosa conducted a study on the use of agriculture cellulose waste materials for energy production. Her study won her the third prize in the 1982 NSTA-DOST most outstanding research award. 8. Linda Posadas researched on the applications of lasers in communications, medicine, defense, architecture, space, science and entertainment.

Short Quiz : 

Short Quiz

Slide 14: 

Activity 3.1 Match column A with column B. A. Scientists B. Contributions Sir Isaac Newton a. Invented the lightning rod Albert Einstein b. Law of universal gravitation Michael Faraday c. PV = K Robert Boyle d. E = mc2 Galileo Galilei e. Invented the generator Henry Ramos f. Plasma experiment device Linda Posadas g. Thomas Edison of the Philippines Gregorio Zara h. Discovered geothermal energy in the Philippines Benjamin Almeda i. Inventor of aircraft engine Arturo Alcaraz j. Research on applications of laser k. Studied the behavior of falling bodies