ICNS/PY 132 : Principles of Physics Weerachai Siripunvaraporn Department of Physics, Faculty of Science Mahidol University &FB : Office hours: Before class at Alumni room. (please call before: )

Course Objectives Students should have an understanding of the fundamental principles of physics and its applications with emphasis on the mechanics and fluid mechanics. Students should be able to solve basic problems using fundamental equations developed in the areas listed above. Students should be able to apply fundamental principles to study and solve problems in new situations.

Here is another example of how to use Physics to make money... At the same time, if you know Physics, you won't lose any money because this "trick" can not fool you.. — in Frankfurt, Germany.Frankfurt, Germany

What is in this class? 1. What is Physics? 2. Math Review 3. Linear Motions (1-D and 2-D) 4. Force (Newton’s laws) 5. Circular + Rotational Motions 6. Work and Energy 7. Momentum and Impulse 8. Equilibrium of Rigid Body 9. Fluid Mechanics Midterm Final

Text Books & References R. A. Serway and J. W. Jewett, Jr., Principles of Physics, Thomson, R. A. Serway and J. W. Jewett, Physics for Scientists and Engineers, International Edition, 9th Edition. (original slides are provided in H.D. Young and R.A. Freedman, University Physics with Modern Physics: 10th edition, Addison Wesley, (also available in Thai version) A. Beiser, Applied Physics, Schaum’s Theory and Problems, McGraw Hill, A. Halpern, 3000 Solved Problems in Physics, Schaum’s Solved Problems Series, McGraw Hill, Any introductory physics textbooks are useful for this course. There are also many introductory to physics websites freely available on the internet. Use Google or Yahoo to search.

muic/icnspy13 PPT Slides used in this class are created from (1) Textbooks R. A. Serway and J. W. Jewett, Jr., Principles of Physics, Thomson, R. A. Serway and J. W. Jewett, Physics for Scientists and Engineers, International Edition, 9th Edition. (2) The original slides from R. A. Serway and J. W. Jewett, Physics for Scientists and Engineers, International Edition, 9th Edition. Chapter 1 to 15 are zipped and uploaded in the website If I copied any slides from (2) to use in (1), this logo and a chapter number will be shown. (3) Copied from some websites (cannot remember; Ref? ) CH1

What is Physics? Physics is Fun! FUNdamental. Physics is FUNdamental for all subjects. It describes how the physical process works from the nanoscopic scale to the size of the universe. Almost every subject is based on the knowledge of physics, such as geology, chemistry, biology and health sciences. Understanding the concept in physics would make it easier to understand many biological or geological processes and others. In fact, physics itself is not as difficult as you would think. Physics concept is simple and easy to understand.

What is Physics? The difficulty may not truly be from Physics itself, but from the mathematics involved. Physics and Mathematics are two subjects that always go together and are hard to be separated from each other. However, you must understand that mathematics is just a “tool” for physicists. Physicists use mathematics to derive or prove the knowledge or concepts of many natural phenomena. The final derivation is often simple and easy to describe the nature “in words”. E = mc 2

Simple but not Simple! E = mc 2 Equation E = mc 2, describes the relation between the energy (E) and mass (m), where c is the speed of light. Equation is very simple, but its derivation is not !. It relies on advance mathematics, physical concepts and most importantly imagination! Though the equation looks simple, its impact is not. The bomb over Hiroshima Island is one of its examples.

Objectives of Physics To find the limited number of fundamental laws that govern natural phenomena To use these laws to develop theories that can predict the results of future experiments Express the laws in the language of mathematics Mathematics provides the bridge between theory and experiment. CH1

Physics in everyday life

Examples of Physics Applications

Grading Scheme Midterm 40% Final 40% Attendance 20% Letter grades for ICNS/PY 132 for the past years 91% - 100%A 83%- 90%B+ 75%- 82%B 67%- 74%C+ 59%- 66%C 51%- 58%D+ 40%- 50%D 0%- 39%F

What will be in the exams? The exams will cover concepts and definitions, problems during lecture or homework problems with minor numerical changes (80%), and problems similar to those but requiring a deeper understanding of concepts or more complex calculations (20%). You will be provided with an equation sheet containing all equations necessary to complete the exam. Any kinds of calculators are allowed during the exam. No other kinds of material may be used to assist you with the exam. Purpose of Exams To help you learn. The process of preparing for and taking the exam enhances your appreciation of the subject. To help me learn. An exam tells me how effectively I am at teaching the subject. To evaluate your performance. An exam provides some measure of your mastery of the subject.

First page of the exam

How to succeed in this class? Some students may have strong background in physics and math, while some students have little to “none”. Emphasizing on “advanced” contents would make it difficult for weaker students. On the other hands, making the contents too simple would make it boring for advanced students. This fact makes it extremely difficult for teacher! Based on my experiences, teaching big classes has never been easy for any teachers, especially when students come from various backgrounds.

How to succeed in this class? This would requires a lot of afford and collaborations from everyone. I recommend forming a group of 3-5 to study the subject together. A group should consist of both good and weak students. studying together as early as possible (not 1 day before the exam). Weaker students spend more time alone studying in order to catch up with the class. studying the subject in advance before the class! Would it be possible? So, how can you help me and help yourself?

“I don’t teach you Physics, I use Physics to teach you the 21 st century skills.” Your benefits are not just the development of your 21 st century skills, but also the knowledge of science and life.

"I'm a physics teacher. It's a job. I don't represent myself when i'm grading. If I was representing myself. I'd let everyone pass. When I give F or D or D+ to students, students will tell me a reason that they don't deserve it. If I pass everyone with a reason, system wouldn't work. I don't get any joy by giving F or low grades to students. And I'm not upset if you don't like me because of that. It's not personal, it's my job. I just do my job." Edited after a speech of a traffic cop of "Humans of New York" blog at Weera Siripun