Welcome! to PH141G General Physics I 2024 Spring Class summary • Subject code/name: PH141G/General physics I • Lecturer: Wonhee Lee (whlee153@kaist.ac.kr) • Class time : Tue & Thu 13:00 -14:30 • Class Language: English (필요시 한국어 보충설명) • Composition of this Lecture ‐ Lecture at the classroom (E11, # 412) Online class (Zoom) or Video lecture if needed. ‐ Recitation class by teaching assistants (TAs) Every Tue either 19:00-20:00 or PM 21:00-22:00. (English or Korean) Location and other detail will be announced ‐ Quiz: Tue 20:15-20:45. Every 2 weeks (Total ~8 quizzes). Mandatory for all students. ‐ Exam (midterm, final): Fri 8:15-8:45. Class summary (cont.) • TA Head TA: Changmin An, acm3795@kaist.ac.kr Name Cellular phone e-mail Hyun, Jounghoon 현정훈 (recitation) 010-6889-9601 jounghoon.hyun@kaist.ac.kr Cha, Jaehun차재훈 (recitation) 010-8996-7336 jaehun.cha@kaist.ac.kr Kim, Geonwoo김건우 010-5119-9431 gw_kim@kaist.ac.kr Kim, Jiwoo 김지우 010-8758-2199 roamfree@kaist.ac.kr Yun, Gibum 윤기범 010-5612-5464 kbyun97@kaist.ac.kr • Grade Evaluation • Midterm & Final exam (30% +35 %) • Recitation class: 25 % (Quiz 20% +Recitation attendance 5%) • Attendance (10 %) 2 tardies = 1 absence. Absence >1/3 of total class = F. Checked with assigned seating @13:10 + one more during class. KLMS: KAIST Learning Management System • Check the Notice regularly! • Lecture notes(pdfs) will be uploaded. • You can check your attendance record. • Use Q&A and board for questions and other stuffs. Class summary (cont.) • Main Textbook: - Essential University Physics by Richard Wolfson (Pearson Addison Wesley, 4th ed.) • Auxiliary Textbook: - Physics by Giancoli (Pearson) - University Physics by Young & Freedman (Addison-Wesley) - Physics for Scientists and Engineers by Randall D. Knight (AddisonWesley) Class philosophy/policies • Various level of physics classes taken before KAIST. - Class will cover both very basics & advance contents. • Open for questions and discussion (during class). Involve actively for discussions, quiz, questions… • Common sense has to be applied. - Be on time. - No chatting with others, no food (drinks OK), No homework or studying other subject… etc. -No cell phone during class. (Tablet or laptop for notetaking allowed.) • PNR: Can be a double-edged sword. Tips for studying physics 1. Practice problem-solving by yourself Lectures only cover the principles. Make the most out of recitation sessions. You can use problem sets from alternative text books. 2. Most important learning process for Physics is through “questioning and answering”. Try question yourself. You can practice this with your friends. 3. It is important to identify what you “really know” and what you don’t know. “If you can't explain it simply, you don't understand it well enough.” (Albert Einstein) 4. Don’t be shy asking questions. Introduction to Physics: Realms of physics Course schedule Week Week Contents wk 1 Ch. 1. Introduction (Doing Physics) Ch. 2. Motion in a Straight Line wk 9 Ch. 13. Oscillatory Motion wk 2 Ch. 3. Motion in Two and Three Dimensions Ch. 4. Force and Motion wk 10 Ch. 14. Wave Motion wk 3 Ch. 5. Using Newton’s Laws Ch. 6. Work, Energy, and Power wk 11 Ch. 15. Fluid Motion wk 4 Ch. 7. Conservation of Energy Ch. 8. Gravity wk 12 Ch. 16. Temperature and Heat wk 5 Ch. 9. Systems of Particles Ch. 10. Rotational Motion wk 13 Ch. 17. The Thermal Behavior of Matter wk 6 Ch. 10. Rotational Motion Ch. 11. Rotational Vectors and Angular Momentum wk 14 Ch. 18. Heat, Work, and the First Law of Thermodynamics wk 7 Ch. 11. Rotational Vectors and Angular Momentum Ch. 12. State Equilibrium wk 15 Ch. 19. The Second Law of Thermodynamics wk 16 Final Exam wk 8 Midterm exam Introduction to Physics: Realms of physics • • • • • • • • • • Classical mechanics Thermodynamics and statistical mechanics Electromagnetism and electronics Relativity Quantum mechanics (string theory) Optics, and atomic, molecular, and optical physics Condensed matter physics High energy/particle physics and nuclear physics Cosmology (astrophysics) Interdisciplinary fields (biophysics, chemical physics, econophysics, etc.) What is Physics? Physics φυσική :phusikḗ 물리 物理 "knowledge of nature" “Understanding of everything” How to describe the interactions of energy, matter, space, and time? What fundamental mechanisms underlie every phenomenon? Goal of Physics is to describe the function of everything around us. Who does study Physics? (Physicist or Not?) Kip S. Thorne Thorne was awarded the 2017 Nobel Prize in physics for “decisive contributions to the LIGO detector and the observation of gravitational waves”. Professor of Caltech, Physics + executive producer of “Interstellar” Who does study Physics? (Physicist or Not?) Eric Betzig Betzig was awarded the 2014 Nobel Prize in chemistry for “the development of superresolved fluorescence microscopy”. Professor of UC Berkeley, Physics & Molecular and Cell biology Who study Physics? (Physicist or Not?) Joachim Frank Frank was awarded the 2017 Nobel Prize in chemistry for “developing cryo-electron microscopy (cryo-EM) for the high-resolution structure determination of biomolecules in solution”. Professor of Columbia Univ., Biochemistry & Molecular Biophysics and Biological Sciences Physics courses Electromagnetism Classical Mechanics Quantum mechanics Condensed matter physics Optics Atomic physics Physics Statistical physics Plasma Particle physics Biophysics Astrophysics Fluid dynamics Thermodynamics Fields of physics (Research fields) Electromagnetism Classical Mechanics Quantum mechanics Condensed matter physics Optics Atomic physics Physics Statistical physics Plasma Particle physics Biophysics Astrophysics Fluid dynamics Thermodynamics Research field extended Condensed matter physics Optics Atomic physics Particle physics Semiconductor physics Quantum computing Physics Medical physics Astrophysics Econophysics Applied physics Computational physics Statistical physics Plasma Biophysics Fluid dynamics Physics provides building blocks of Science! Classical Mechanics Quantum Mechanics Electromagnetism Your major? Relativity Thermodynamics & Statistical mechanics Physics is a way of thinking! Through Physic, You will learn • A set of logical and systematic approaches to understand the natural world. • Based on observation and sensory information conceptualization & operation (c.f. Mathematics) • Problem solving • Critical thinking & reasoning: asking why?
