Phys2425 University Physics I Jared Stenson

Introduction Who am I? Who are you? What are we doing here? How do we do it? SyllabusSyllabus Quiz Reading questions In-class activities Labs Online HW Portfolio Project Exams Questions?

Simple Questions What color is 3 o’clock? (group work) If you knew everything about my shirt, would you know everything about everything? If you knew everything about the homework, would you know everything about the exam? Ch1

Simpler Questions What color is 3 o’clock? (group work) If you knew everything about my shirt, would you know everything about everything? If you knew everything about the homework, would you know everything about the exam? Ch1

What Affects This Course? KNOWLEDGE OF DATA, FACTS, AND FIGURES BELIEFS AND EXPECTATIONS “IMAGINATION (BELIEF) IS MORE IMPORTANT THAN KNOWLEDGE” LOOK TO THE PHYSICAL SITUATION

Look at the Numbers or Go to the Physical Situation? Is Phys2425 Fall the same as Phys2425 Summer? Regular Physics Course: 96 contact hrs, 19 chs, 4 credits Summer Physics Course: 96 contact hrs, 19 chs, 4 credits ° N, ° W

Look at the Numbers or Go to the Physical Situation? Box Score: Coronado Thunderbirds 55 Franklin Cougars 40 Place: 31.85°N 106.4°W Last Basket scored by #24 Question: Who is the winner and who is the loser? The Physical Situation

Nature of Science What is scienceWhat is science? What is science like? How do you learn it? How do you do it? Ch1

Nature of Science What is science? What is science like? How do you learn it? How do you do it? Science is any human process relating concepts and experience in a way that seeks to be systematic, unambiguous, and communicable in order to understand the universe. Concepts Experience Generalize experiences to form a systematic, unambiguous, and communicable conceptual structure Apply conceptual structure to create, explain, or predict experiences Ch1

Nature of Science What is science? What is science like? How do you learn it? How do you do it? Math? EngineeringEngineering? Philosophy? ArtArt? Religion? Magic? Concepts Experience Generalize experiences to form a systematic, unambiguous, and communicable conceptual structure Apply conceptual structure to create, explain, or predict experiences Ch1

Nature of Science What is science? What is science like? How do you learn it?learn How do you do it? Concepts Experience Generalize experiences to form a systematic, unambiguous, and communicable conceptual structure Apply conceptual structure to create, explain, or predict experiences Be honest. Work hard. Seek learning. Take time – SUMMER!!!!!! Think deep. “A little learning is a dangerous thing. Drink deep, or touch not the…spring.” --Alexander Pope Ch1

Nature of Science What is science? What is science like? How do you learn it? How do you do it?do Solution Physical Situation Representation: Use words, pictures, mathematics Interpretation Ch1

Nature of Science: The Upshot Math doesn’t mean anything until you give it an interpretation. The aim of science is insight, not truth. Failure can move us forward. A major role of science is to form and use stories and models that help us understand experience.

Lab1 Measurement, Units, Uncertainty Lab 1: What to do Do the activity Have the discussion Record the data Do the write-up Turn in the next day

1. Over time, science gets closer and closer to the truth.Over time, science gets closer and closer to the truth 2. Science and its methods can answer all significant questions.Science and its methods can answer all significant questions 3. A scientist should not allow preconceived ideas guide observation and experimentation.A scientist should not allow preconceived ideas guide observation and experimentation 4. Careful observation gives us truth about the world around us.Careful observation gives us truth about the world around us 5. Facts are the most valuable commodity in scientific discourse.Facts are the most valuable commodity in scientific discourse 6. There is a universal scientific method in which hypotheses become theories, and theories become laws.There is a universal scientific method in which hypotheses become theories, and theories become laws 7. Science is exceptionally logical.Science is exceptionally logical 8. Science is more like math than it is like art.Science is more like math than it is like art 9. A claim is “scientific” only if it is testable – or, better yet, falsifiable.A claim is “scientific” only if it is testable – or, better yet, falsifiable 10. Experiment and observation are the principle routes to scientific knowledge.Experiment and observation are the principle routes to scientific knowledge 11. Science does not tell us about how the world really is but only about how we perceive it.Science does not tell us about how the world really is but only about how we perceive it 12. All scientific work is independently reviewed and replicated.All scientific work is independently reviewed and replicated 13. Science makes no claims when results are uncertain.Science makes no claims when results are uncertain 14. Scientific concepts are invented, as opposed to discovered.Scientific concepts are invented, as opposed to discovered 15. Mathematics governs nature, nature doesn’t govern mathematics.Mathematics governs nature, nature doesn’t govern mathematics. 16. What scientists choose to study reflects the social values and views of the time.What scientists choose to study reflects the social values and views of the time 17. Once a working scientific explanation has been given, there is no need to look for other explanations.Once a working scientific explanation has been given, there is no need to look for other explanations 18. Historically, science has been dominated by white Europeans and North American males.Historically, science has been dominated by white Europeans and North American males 19. Theories change when new conceptualizations account for anomalous data.Theories change when new conceptualizations account for anomalous data 20. The use of evidence (not consensus or belief) distinguishes science from non-science.The use of evidence (not consensus or belief) distinguishes science from non-science The Nature of Science 1. Consider the following statements. On your own piece of paper record each one as either “Agree” or “Disagree.” 2. After you have considered your own thoughts get together with at least 3 other people. 3. Discuss each statement and circle the ones on which your entire group agrees. back

Physics vs. Engineering vs. Math back

Stages of Knowing How do you answer a difficult question? “Why does the bike tire do?” Released from rest? Release while spinning?

Stages of Knowing How do you answer a difficult question? “Why does the bike tire do?” 0) Relying on no one 1) Relying on experts 2) Relying on self 3) Relying on a procedure (men and women) 4) Relying on principles back

Problem Solving Chiasm Always defer to the Physical Situation Identify goals Must choose and build effective conceptual, visual, and mathematical Representations Set up framework Execute the Solution Identify results Interpret results in light of the chosen representation Evaluate in terms of goals Enjoy insight into the Physical Situation back