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PHY 184 Physics for Scientists & Engineers 2

PHY 184 Physics for Scientists & Engineers 2. Spring Semester 2007 Lecture 1. Meet Your Professor (1). Section 1 Prof. Reinhart Schienhorst Section 2 Prof. Daniel Stump. Meet Your Professor (2). Daniel Stump Ph. D. 1976 (M. I. T.) Teaching at MSU since 1980

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PHY 184 Physics for Scientists & Engineers 2

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  1. PHY 184Physics for Scientists & Engineers 2 Spring Semester 2007 Lecture 1 184 Lecture 1

  2. Meet Your Professor (1) • Section 1 • Prof. Reinhart Schienhorst • Section 2 • Prof. Daniel Stump 184 Lecture 1

  3. Meet Your Professor (2) • Daniel Stump • Ph. D. 1976 (M. I. T.) • Teaching at MSU since 1980 • Theoretical High-Energy Physics • Office hours Mon & Thu, 1:00 -2:30 pm Learning Center (Room 1248) • Best way to contact me – after class 184 Lecture 1

  4. Comparing Data and Theory 184 Lecture 1

  5. Meet Your Professor (2) • Daniel Stump • Ph. D. 1976 (M. I. T.) • Teaching at MSU since 1980 • Theoretical High-Energy Physics • Office hours Mon & Thu, 1:00 -2:30 pm Learning Center (Room 1248) • Best way to contact me – after class 184 Lecture 1

  6. Textbook • Bauer and Westfall • “Physics for Scientists and Engineers 2”, McGraw-Hill (2005). • Available at the MSU Bookstore 184 Lecture 1

  7. PHY 184 on the Web • Web site: • http://www.pa.msu.edu/courses/phy184 • Homework web site • http://msu.loncapa.org • Strosacker Learning Center in Room 1248 BPS (this building) will be our help room for LON-CAPA homework. Coverage will be numerous and varied hours each week. 184 Lecture 1

  8. LON-CAPA Login Enter your MSU mail id Enter your password Enter msu Click or hit return 184 Lecture 1

  9. Grades What Counts % Midterm 1 20% Midterm 2 20% Final Exam 30% Homework 30% 100% Total • We grade on a fixed scale - no curve Up to 5% extra credit: In-class quizzes using HITT clickers 184 Lecture 1

  10. To get a good grade in PHY 184, you’ll need to do 4 things: /1/ Come to class, pay attention, take notes. (4 hours/wk) /2/ Do the reading. (2 hours/wk) /3/ Do the LON-CAPA homework. (8 hours/wk at least ) /4/ Study for the exams. (10 hours the week before the exam) 184 Lecture 1

  11. Clicker Quizzes • HITT clickers – purchase at the bookstore Enroll your clicker in LON-CAPA by giving your clicker ID! 184 Lecture 1

  12. Clicker Sign-up • Registration in LON-CAPA: Course document “Clicker” 184 Lecture 1

  13. Schedule for PHY 184 • Lectures • M, Tu, W, Th • 9:10 - 10:00 • Two Midterm Exams • Thursday, February 8 • Thursday, March 22 • Final Exam • Time – Thursday May 3 • Location - TBA • Homework due each Tuesday morning at 8:00 am If you care about your grade, come to class ! Work on homework every day! 184 Lecture 1

  14. Syllabus and Exams 184 Lecture 1

  15. Electromagnetism 184 Lecture 1

  16. Electricity and Magnetism • Electricity and magnetism have been known for thousands of years. • The philosophers of ancient Greece knew that a piece of amber rubbed with fur would attract small, light objects • The word for electron and electricity derive from the Greek word for amber, o. • Naturally occurring magnetic materials called lodestones were used as early as 300 BC to construct compasses. • The relationship between electricity and magnetism was not known until the middle of the 19th century. 184 Lecture 1

  17. Fundamental Forces of Nature • The force of gravity was described by Isaac Newton • Late 17th century • In the 20th century, two more forces were discovered • The weak force and the strong force – inside the atomic nucleus • The electromagnetic force and the weak force have a unified theory • The electroweak force • 1979 Nobel prize in physics for Weinberg, Salam, and Glashow • Currently physicists are working to unify the electroweak force and the strong force. • Gravity remains a puzzle although it was identified first. 184 Lecture 1

  18. The Four Forces • We think that the four fundamental forces work by exchanging elementary particles • Gravity - graviton (has not been observed) • Electromagnetic – photon (the elementary component of light) • Weak - W and Z bosons(first observed 1983, but unstable) • Strong – gluons (first observed 1978, but confined) • Thus forces can act across distance (objects not touching) • The Sun attracts the Earth from 93 million miles away • A magnet attracts iron. The forces act through the fields of the exchanged particles. 184 Lecture 1

  19. Gravitational and Electric Forces • For gravity we defined a gravitational force… • …and a gravitational potential • We will do the same for the electric force and the electric potential. • We will develop the theory of the electric field to describe the electric force. 184 Lecture 1

  20. Elementary Particles • Exchange particles • Leptons • Quarks 184 Lecture 1

  21. Fermi National Accelerator Laboratory Link 184 Lecture 1

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