L1

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Conceptual Physics
Lesson 1

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L1

  1. 1. Physics L1
  2. 2. About Science <ul><li>“ rules of the game” </li></ul><ul><li>The study of nature’s rules </li></ul><ul><ul><li>Star patterns </li></ul></ul><ul><ul><li>Weather patterns </li></ul></ul><ul><li>A way of thinking </li></ul><ul><li>A collection of knowledge </li></ul>
  3. 4. The Language of Science
  4. 5. The Scientific Method <ul><li>Recognize problem </li></ul><ul><li>Make hypothesis </li></ul><ul><li>Predict consequences </li></ul><ul><li>Perform experiments </li></ul><ul><li>Find rule </li></ul><ul><li>Hypothesis </li></ul><ul><ul><li>Educated guess </li></ul></ul><ul><li>Principle / Law </li></ul><ul><ul><li>Hypotheses tested by experiments and not contradicted </li></ul></ul>
  5. 6. Aristotle’s hypothesis <ul><li>Regarding the free fall of an object </li></ul>An object twice as heavy falls twice as fast
  6. 7. Galileo’s experiment <ul><li>In the absence of air resistance, all objects fall in the same time </li></ul>Tower of Pisa, Italy
  7. 8. Theory <ul><li>Not hypothesis </li></ul><ul><li>Synthesis of a large body of information </li></ul><ul><li>Includes many verified hypotheses </li></ul><ul><li>Undergoes change </li></ul><ul><ul><li>Atomic theory </li></ul></ul><ul><ul><li>Cell theory </li></ul></ul>
  8. 9. Tests of Hypotheses <ul><li>Scientific hypothesis can be proven right and wrong </li></ul><ul><ul><li>“ The alignment of planets determines the best time for making decisions” </li></ul></ul><ul><ul><li>“ Intelligent life exists on other planets” </li></ul></ul><ul><ul><li>“ Most people stop for red lights” </li></ul></ul><ul><ul><li>“ No material object can travel faster than light” </li></ul></ul>
  9. 10. Over to you <ul><li>Which hypothesis is scientific? </li></ul><ul><ul><li>“ Atoms are the smallest particles of matter”; </li></ul></ul><ul><ul><li>“ Our universe is surrounded by another universe, which cannot be detected”; </li></ul></ul><ul><ul><li>“ Albert Einstein was the greatest physicist of the twentieth century” </li></ul></ul>
  10. 11. Science and Technology <ul><li>Science </li></ul><ul><ul><li>Answers theoretical questions </li></ul></ul><ul><ul><li>A way of knowing </li></ul></ul><ul><li>Technology </li></ul><ul><ul><li>Putting science facts to practical use </li></ul></ul><ul><ul><li>Interferes with life and nature </li></ul></ul><ul><ul><li>A way of doing </li></ul></ul>
  11. 13. End L1

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