Download Physics 210b

Physics 210B
Fall 2005
John Dunning
Course Outline
Welcome to the second semester of algebra based physics. The material is selected to be
of use to Biological and Medical professionals. It will also be helpful with the MCAT
examination. The topics covered include: sound and light waves, optical devices,
diffraction and interference, X-ray diffraction, medical X-rays, radioactive tracers in
biochemistry, electrical forces and fields, magnetic forces and fields, and Faraday's Law.
Time permitting, heat transfer will be discussed.
Text: Physics, 6th edition, Giancoli, Prentice Hall
http://wps.prenhall.com/esm_giancoli_physicsppa_6/0,8713,1113739-,00.html
Course organization and Grading: Demonstrations, lectures, and selected problem
solving will be employed to help you understand the concepts and acquire your own
problem solving ability.
Allow sufficient time after each lecture to work on the relevant problems. The actual
combination of problem solving, reading, lecture debriefing, study group participation,
internet interactive solutions, etc. that optimizes results varies with the individual. A
source of additional help is the study guide packaged with the text. Problem solving skills
are very important. Read the text in advance of the lecture, keep problem solutions
current, and you will be better off.
Weekly homework suggestions will be given on Friday with the solutions either posted on
the internet or handed out on the following Wednesday. Doing this homework in a timely
manner is a great reinforcing aid. Handwritten homework will be collected for the first four
sessions on Fridays. If a grader is available, this homework will be graded with ½ point for
handing it in and ½ point for getting it right . If no grader, those handing it in will earn one
extra point per homework on the final grade.
Two midterms (20% each) are planned for Friday September 29th and Friday November
4th. A review will be given the class before. In addition there will be half period quizzes on
all remaining Fridays (30%) except December 9th. The quizzes normally consist of four
problems taken from the homework and the lecture/demonstrations. Full credit is given for
three correct. There are no make up quizzes. However, the quiz grade (30% of the total
grade) will be based on one less than the number of quizzes. The final examination (30%)
will consist of half new material, and half the most missed concepts from the midterms and
quizzes.
Office Hours. Monday, Wednesday 1 – 1:50. These will be problem sessions. My
official office is in Chalk Hill (664-2439). I am most likely in the Keck Laboratory, Salazar
2009b 664-2258, home to our Scanning Electron Microscope and X-ray Diffraction
Equipment. I sometimes work in the Low Level Counting Laboratory in Carignane, 6642335, home to our Germanium gamma ray detection equipment. I am happy to talk about
physics. Messages to [email protected]
Course Outline: This course begins where 209a left off last semester. The following is
my planned topic order. The lectures will generally follow the sequence within each
chapter. A chapter a week is planned. The starred (*) sections will be omitted, except
where noted. Use the homework assignments and the material actually discussed in
lecture as a guide to the material that will be on the tests.
Sound and Light (5 1/2 weeks)
Wave motion, simple harmonic motion and resonance: Ch. 11
Waves and sound including ultrasound: Ch. 12
Electromagnetic waves introduction: Ch. 22-1 to 22-4
Light and optics: Ch. 23
Wave nature of light, interference, diffraction, polarization: Ch. 24
Optical instruments, eye glasses, diffraction limited optics: Ch. 25
First Exam September 29th
X-rays, Radioactivity ( 1 1/2 week)
Crystal structure via X-ray diffraction: Ch. 25-11 + handout. Radioactivity, ionizing
radiation, half life tracers, medical X-rays, comparison of MRI and CT scans: Ch. 25-12,
Ch. 28-9, Ch. 30, Handout on medical X-rays
Electric and Magnetic Phenomena (6 weeks)
Electric forces and fields: Ch. 16
Electric potential energy: Ch. 17
Second Exam November 4th
Electric circuits: Ch. 18 Ch. 19-1 to 19-2, 19-5 to 19-7
Magnetic forces and fields: Ch. 20
Faraday's law, electromagnetic induction: Ch. 21:
E&M Waves: Ch. 22-1 to 22-4, revisited, Ch. 22.7
Heat Transfer: Conduction, convection, radiation: Ch. 14-6 to 14.8 time permitting
First Problem suggestions (due September 9th ): Ch 11. 1, 5 and the following
questions:
For an oscillating spring, if the mass is reduced by a factor of 2, what happens to the
frequency?
For an oscillating spring, if the amplitude is doubled, what happens to the total energy?
Problem 48 is a similar energy scaling problem applied to earthquakes.
Ch. 11: 10, 16, 22, 28, 30 and the following question:
If the length of a simple pendulum is doubled, what happens to the period?
Assuming we get this far: Ch. 11: 37, 38b, 44, and the following question:
If the distance from a point source is doubled, what happens to the Intensity?