Unit 1 Introduction Lesson 1 A Scientific World View Eleanor Roosevelt High School Mr. Chin-Sung Lin

Physics Unit 1 – Introduction L1 Physics – A Scientific World View L2 Math – The Language of Physics L3 Strategies of Learning Physics

Physics Unit 1 – Introduction L1 Physics – A Scientific World View L2 Math – The Language of Physics L3 Strategies of Learning Physics

Physics – A Scientific World View  What is Science?  Role of Physics – The Basic Science  Goal of Physics – A World View  Scientific Method & Process  Scientific Attitude  Criteria of Physics Models & Laws  Science, Technology and Society

What is Science?

Physics – A Scientific World View What is Science?  Discover and study nature’s rules

Physics – A Scientific World View What is Science?  A body of knowledge and the method to produce it Body of Knowledge Methods

Role of Physics

Physics – A Scientific World View The Basic Science – Physics  Science grew out of natural philosophy

Physics – A Scientific World View The Basic Science – Physics  Branches into life & physical sciences Life SciencePhysical Science Biology Zoology Botany Physics Chemistry Geology Science

Physics – A Scientific World View The Basic Science – Physics  Physics is the most basic of all the sciences Physics Particles, atoms, energy, forces, …… Chemistry Molecules, reactions, equilibrium,…… Biology Genes, cells, organs, growth,……

Goal of Physics

Physics – A Scientific World View The Goal of Studying Physics  To create a scientific world view

Physics – A Scientific World View The Goal of Studying Physics World view – A shared set of ideas that explain how the material world operates

Physics – A Scientific World View The Goal of Studying Physics Scientific world view vs. Common sense – sometimes the ideas might appear to be contrary to common sense Scientific World View Common Sense

Physics – A Scientific World View The Goal of Studying Physics Scientists use instruments to extend the range of human sensations

Scientific Method

Physics – A Scientific World View Scientific Method  Galileo Galilei & Francis Bacon are the principal founders of the scientific method

Physics – A Scientific World View Scientific Method Observe Recognize a problemDevelop a HypothesisPredict ConsequencesFormulate RulesRefine the HypothesisPublish Results Develop Experiments

Physics – A Scientific World View Scientific Method  Effective in gaining, organizing & applying new knowledge  The method is only a guideline to a good scientific practice

Physics – A Scientific World View Scientific Method  Einstein’s view of scientific processes Idea/Axiom Consequences Creative Leap The Real World

Physics – A Scientific World View Scientific Method  Einstein’s view of scientific processes ☛ A scientist makes a creative leap based on intuition to explain physical phenomena ☛ A powerful idea/axiom has many consequences ☛ The scientific process begins when the scientist develops consequences based on the idea/axiom ☛ Test these consequences against the real world

Scientific Attitude

Physics – A Scientific World View Scientific Attitude  Fact – A close agreement by competent observers who make a series of observations of the same phenomenon Fact

Physics – A Scientific World View Scientific Attitude  Hypothesis – An educated guess that is only presumed to be factual until demonstrated by experiment Scientific hypotheses must be testable Hypothesis

Physics – A Scientific World View Scientific Attitude  Laws or Principles – Hypotheses being tested repeatedly and not contradicted Law/Principle

Physics – A Scientific World View Scientific Attitude  Theory – A synthesis of a large body of information that includes well-tested hypotheses about certain aspect of the natural world Theory

Physics – A Scientific World View Scientific Attitude  Concept – An intellectual framework that is part of a theory encompasses the overriding idea that underlines various phenomena Concept

Physics – A Scientific World View Scientific Attitude  Not appealing to authority, personal preferences, popularity or selecting partial facts STOP

Criteria of Physics Ideas & Laws

Physics – A Scientific World View Scientific Method  Criteria of good scientific ideas ☛ As general as possible ☛ As simple as possible

Physics – A Scientific World View Scientific Method  Criteria of a physics law ☛ Account for the known data ☛ Make Testable predictions ☛ Have a scientific basis

Science, Technology & Society

Physics – A Scientific World View Science, Technology & Society  Science vs. Technology – Targets Questions about Nature Problems of the World

Physics – A Scientific World View Science, Technology & Society  Science vs. Technology – Goals Answer Theoretical QuestionsSolve Practical Problems

Physics – A Scientific World View Science, Technology & Society  Science vs. Technology – Methods Find RelationshipsDevelop Tools & Procedures

Physics – A Scientific World View Science, Technology & Society  Science vs. Technology – Results Scientific TheoriesEngineering Solutions

Summary – A Scientific World View  What is Science?  Role of Physics – The Basic Science  Goal of Physics – A World View  Scientific Method & Process  Scientific Attitude  Criteria of Physics Models & Laws  Science, Technology and Society

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