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  • 1. Chapter 1 Develop byQulb e Abbas
  • 2. What is Physics?Physics is a branch of science which studies physical and natural phenomenaaround us.Examples of natural phenomena are formation of rainbow, solar eclipse, the fall ofthings from up to down, the cause of sunset and sunrise, formation of shadow andmany more.Physics mostly answers whys rather than what and it gives scientific, systematicand consistent explanation based on the concepts of physics.Physics knowledge will increase as the flow of time; new concepts will replace oldconcepts if proven to be accurate.The word physics evolved from ‘physikos’ a Greek word for nature.There are two main divisions of physics which are:a. Classical physics: motion and energy, mechanics, force and motion, heat, sound,electricity, magnetism and light.b. Modern physics: atomic, molecular and electron physics, nuclear physics,relativity, origin of universe, astrophysics.
  • 3. Several discoveries and contributions based on the knowledge of physics:1911 –New Zealand-born British physicist Ernest Rutherford(UK, New Zealand), proposed that an atom has a positivelycharged nucleus called Proton.1957 –Sputnik I, first satellite to orbit the earth (SovietUnion).1969 –Man landed on the moon – Neil Armstrong becamethe first human being to set foot on the moon (US).1989 –www was launched by British Engineer Tim Berners-Lee and his colleague (UK).1990 –The Hubble Space Telescope was built and launchedinto orbit by NASA (US).
  • 4. Among the important figures in Physics:Galileo GalileiIsaac NewtonCharles Augustin de CoulombAlbert EinsteinStephen William Hawking
  • 5. Study of Physics1. As the other branches of science, scientific skills is necessary in the process of undertakingresearch and analysis in physics.2. Research or Experiments are done systematically and step by step based on scientific method.3. Scientific methodIdentifying Problem ---- Making Hypothesis -----Planning investigation ------Identifying andcontrolling variables ----conducting experiment ----collecting data ----recording data----makingconclusions---writing reports.Careers in Physics included (examples)1. Engineering2. Computer Science3. Industry4. Communication5. Electronics6. Medicine – X ray7. Environmental Science8. Basic Research
  • 6. For feed backsqjafery@gmail.com