physics – the basic science topics scientific method identify variables scientific attitude...
TRANSCRIPT
Physics – The Basic ScienceTopics
•Scientific Method•Identify Variables•Scientific Attitude
•Science & Technology
Activities•Class Work
Physics – The Basic Science
• Science used to be called Natural Philosophy• Unanswered Questions --- > Answers --- > SCIENCE
Science TodayLiving things Non Living things
Biology Geology
Zoology Astronomy
Botany Chemistry
PhysicsPhysics: Nature of things --- > Motion, forces, energy, matter,
heat, sound and light
Mathematics: The Language of Science
Scientific Method
• Recognize the problem• Make an educated guess – hypothesis – about the
answer• Predict the consequences of the hypothesis• Perform experiments to test predictions• Formulate the simplest general rule: hypothesis +
prediction + experiment
Hypothesis: If _______ then _________ because______
Galileo Galilei (1564 – 1642)
Variables
• Manipulated (or Independent) Variable• Responding (or Dependent) Variable• Controlled Variables (or Controls)
• In a controlled experiment these variables must be measurable
In this experiment, which are the different variables ?
The Scientific Attitude
• Fact: Agreement of competent observers of the same phenomenon• Hypothesis: Educated guess -- > Fact if demostrated by experiment• Laws or Principles: Tested hypothesis over and over• Theory: Synthesis of a large body of information + well-tested
hypothesis about certain aspects of the natural world.
Theories undergo changes !!!
Atomic Theory
Science and Technology
• Science: Method of answering theoretical questions
• Technology: Method of solving practical problems
• Science is a way of knowing
• Technology is a way of doing
Homework
• Go to: www.pearsonsuccessnet.com
• Click on Book Student Edition and open it
• Maximize window and click “View By” tab
• Click on “Exercise Worksheets”
• Click on “Ch.1 About Science”
• Print all pages and complete the questions
• Submit homework following class