University of Montana Physics & Astronomy

Physics 141, Einstein's Relativity Albert Einstein
Spring 2013

Professor: Dr. Nate McCrady

Office: CHCB 122
Office Hours: M 1-2pm, Tu/Th 11am-noon, F 2-3pm and by appointment
E-mail: nate.mccrady (at) umontana (.) edu

PHSX 141N Einstein's Relativity (Honors Course)

In this course, industrious students with a working knowledge of algebra and trigonometry and a modest exposure to calculus will gain deep insight into the counter intuitive nature of space and time and will acquire a greater appreciation for the power and beauty of theoretical physics. We will begin with a brief historical view of the study of motion including the works of Galileo, and Newton. We will explore the necessity of introducing relativity theory to match known experimental results. Einstein's special theory of relativity is introduced from a modern, geometrically oriented perspective, using space time diagrams throughout, and emphasizing the deep connection between time and space. We will carefully develop the Lorentz transformation equations and use them to explore several of the apparent "paradoxes" of the theory. Finally, we will apply the results of relativity theory to the practical real world problems of high-energy particle physics, where the use of relativity is essential. Throughout the course, we will emphasize the logical structure of relativity to show how the unexpected and counter intuitive consequences of the theory follow directly and inevitably from the principle of relativity: "the laws of physics are the same in all inertial reference frames."

Prerequisites: Working knowledge of high school algebra and trigonometry. Some exposure to high school physics and calculus is preferred.

Course Resources

Homeworks

From Galileo to Einstein (due Wed, Jan 30)
Newton: Principia Excerpts (due Fri, Feb 1)
HW Chapter 1a (due Mon, Feb 4)
HW Chapter 1b (due Wed, Feb 6)
HW Chapter 2a (due Fri, Feb 8)
HW Chapter 2b (due Mon, Feb 11)
HW Chapter 2c/3a (due Wed, Feb 13)
HW Chapter 3b (due Fri, Feb 15)
HW Chapter 4a (due Fri, Feb 22)
HW Chapter 4b (due Wed, Feb 27)
HW Chapter 5a (due Fri, Mar 1)
Muon discussion (due Mon, Mar 4)
HW Chapter 5b (due Mon, Mar 4)
HW Chapter 5c (due Fri, Mar 8)
Around-the-world clocks discussion (due Fri, Mar 8)
HW Chapter 5d (due Wed, Mar 13)
HW Chapter 6a and 6b (due Mon, Mar 18)
HW Chapter 6c (due Mon, Mar 18)
HW Chapter 7a (due Fri, Mar 22)
HW Chapter 7b (due Mon, Mar 25)
HW Chapter 8a (due Wed, Mar 27)
HW Chapter 8b (due Wed, Apr 10)
HW Chapter 9a (due Mon, Apr 15)
HW Chapter 9b (due Wed, Apr 17)
HW Chapter 10a (due Fri, Apr 19)
HW Chapter 10b (due Fri, Apr 26)
HW Chapter 11a (due Fri, Apr 26)
HW Chapter 11b (due Mon, Apr 29)
HW Chapter 11c (due Fri, May 3)
HW Chapter 12a (due Mon, May 6)
HW Chapter 12b (due Fri, May 10)


Handouts

Frisch & Smith (1963) (Time Dilation from Muons)
Description of the binomial expansion (PDF)
Hafele & Keating (1972) (Around the World Clocks)
Twin "Paradox"
Length Contraction
Barn & Ladder "Paradox"
Subatomic Particles (Table 11.1)
Standard Model of Particle Physics poster

Solutions to Ch 11 Worksheet 3 (HW 11c)


Grade Updates

Score Histogram for Exam 1
Score Histogram for Exam 2