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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 Science Physical 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 problem
Develop a Hypothesis
Predict Consequences
Formulate Rules
Refine the Hypothesis
Publish 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 Questions Solve Practical Problems
Physics – A Scientific World View
Science, Technology & Society
Science vs. Technology – Methods
Find Relationships Develop Tools & Procedures
Physics – A Scientific World View
Science, Technology & Society
Science vs. Technology – Results
Scientific Theories Engineering 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
The End
