Physics 180B - Spring 2007
updated: November 19, 2008

             Electric Charges, Fields and Forces
                                                 and Electromagnetic Induction

Chapter 17

July 9-10
Practice 1 - July 10
Electric Charge and Field

Remember: Diagrams (visual)-Reasoning (explanation)-Solution (mathematics)

(Do everthing below this line.) My Questions
A) How did Coulomb develop the electric force law using the torsion balance?
B) What is the difference between an insulator, conductor and a semiconductor? What are their uses?

Do example 17.4
D. What is Faraday's Ice Pail experiment?

Problems: 15, 16, 18, 23 - 37, 39, 66, 70 - 71, 72, 73, 76

Chapter 18

July 11-12
Practice 2- July 12
Electric Potential

Remember: Diagrams (visual)-Reasoning (explanation)-Solution (mathematics)
My Questions
A) What is the Electric Field that surrounds charges?
How does the creation of an Electric Field help us use stored energy to do work?
B) Explain the physics of the capacitor. Where do we use them? How does it relate to our bodies?
C) Explain how Millikan discovered the charge on an Electron?
D) Explain figure 18.12.

6, 7, 25, 26 - 31, 34, 48, 56 - 48, 76, 77, 80, 81

Mastering Physics

Chapter 19

July 16-17
Electric Currents, Resistance

Remember: Diagrams (visual)-Reasoning (explanation)-Solution (mathematics)

A) What are the similarities and differences between an electric battery and a neuron I,II,III?
B) Compare the flow of electric current in metal wires to the flow of water in hollow pipes.
What are the analagous features in electic circuits to pressure (water pump), water flow, and pipe diameter?
C) A graduate school admissions officer asks, "In your own words, utilizing the action potential,
how is a signal sent from your toe to your brain?"
D) Why is the resistor in an Ammeter and a Voltmeter circuit placed in different configurations?
How are both the Ammeter and Voltmeter placed in a circuit to make a measurement? Both meters require a small amount of current to be 'bled' from the circuit, why? Does this 'bleeding' have an affect on the circuit? How? Is it possible to create a meter that would not bleed any current from the circuit? Is it possible to make a measurement (observation) of any kind without effecting the object being measured (observed)? Can you feel the philosophy?
Questions none
17, 21, 25, 26 - 42, 43, 44, 45 - 75, 79, 80, 83

Mastering Physics

Test 1 - Wed. July 18, 2007

Chapter 20

July 19-23
Practice 3 - July 23
Magnetic Fields and Forces

My Questions
Remember: Diagrams (visual)-Reasoning (explanation)-Solution (mathematics)
A) What is Magnetism? Draw a diagram of the magnetic field associated with an electric current thru a wire, a loop or a solenoid?
B) Explain this diagram.

C) What are the electomagnetic principles of a speaker?
D) What are the electomagnetic principles of a motor?
E) What are the electomagnetic principles of a mass spectrometer?
Problems 10, 11, 12, 13 - 20, 21, 24, 25 - 32, 33, 36, 37 - 48, 55, 94, 97

Mastering Physics

Chapter 21

July 24-25
Practice 4 - July 25
Electromagnetic Induction

My Questions
Remember: Diagrams (visual)-Reasoning (explanation)-Solution (mathematics)

A) What is Faraday's Law of Induction? Include Lenz's Law
B) Explain figure 21.21
C) Explain fig. 21.34.
D) What are Eddy Currents? Draw a diagram.
Problems: 8,9,10,11 - 25,26,49,51 - 63,64,66,67

Mastering Physics

Test 2 - Thursday, July 26, 2007


Light Concepts


Chapter 23
July 30-31
Electromagnetic Waves
Practice 5 - July 31

My Questions
Remember: Diagrams (visual)-Reasoning (explanation)-Solution (mathematics)
A) What are electromagnetic waves? How do we know light travels in waves?
B) What two ways are electromagnetic waves produced?--Fluorescent Light
C ) How do E-M waves interact with matter?
D ) Why do astronomers use the entire electromagnetic spectrum to view the sky?
Problems: 50, 51, 69, 72, 73, 80

Mastering Physics

Extra Credit - Answer these questions on a Word processor then go to ----> P180B - Cosmic Voyage (answers 1,2)

1) After viewing the Cosmic Voyage video, explain how humans are able to provide some explanations to both 'outer' space and 'inner' space. What tools did we use? What patterns did we discover? What theories were devised to explain the observations? Are we close to undertanding the universe?
(Do not answer this question if you did not watch the video.) 5 points

2) Do you believe that scientists have uncovered the mechanism for life? (DNA) Do you believe that scientists have opened your eyes on the universe? (Stars, planets, galaxies) Have scientists unraveled the constituents of the human brain? (Neurons) Are we aware of our own consciousness? What is common to all life on earth? How do you know anything that you know?
Let loose. Don't look around. Answer the question. (Inspired by my ultra-intelligent answer-seeking students) 5 points

Chapter 24
July 31 - August 1
Practice 6- August 1
Light:Geometric Optics

My Questions
Remember: Diagrams (visual)-Reasoning (explanation)-Solution (mathematics)
Questions:no book questions, example66
Problems:36, 39, 40, 45, 52, 55, 60, 62, TIR

Mastering Physics

Chapter 25

Optical Instruments
Sections 1,3,5,6

Choose your favorite Optical Instrument.
Details of the Chapter 25 optional assignment. (25 points)
This assignment is due on Thursday, August 2.

After watching Cosmic Voyage and reading chapter 25, I want a 5-7 page document (not a research paper) on one specific Telescope or Microscope. I want you to research the new technologies that are allowing us to see further and deeper. How do the new technologies change our perception of reality, our place in the universe, our understanding of the universe? Be philosophical. The physics of the technology should be the most important part of your paper. Your perfectly drawn diagrams will stand out.

Please keep the writing succinct, to the point, and informative. No long drawn out paragraphs. Short paragraphs are great. Bullets and Diagrams are most effective. You will certainly borrow from the Internet.
I want you to do this. Please indicate where you obtained your information. Please, do not simply print pages off the Internet and turn your document in to me. I want you to create a unique and beautiful document using the resources of the Internet or the Library.

I want 50% of the paper to be what you wrote, what you explained and what you drew. Recreate a better explanation of the optical technology that you are researching.

I will award more than the 25 points (up to 40 pts) if there are super-excellent papers. If I feel that you took too much from the Internet or that you wrote too much without very many diagrams or physics connections, you will receive 0 points. My grade will stand. Please don't do this assignment if you don't have time or expect partial credit. I am awarding 25 points or more to all who do this assignment. Nothing less. Period.

Be complete, be concise, be clear and be creative.

Chapter 26
August 2-6

Interference and Refraction

Sections 1,2,3,4,5,7,9

My Questions
Remember: Diagrams (visual)-Reasoning (explanation)-Solution (mathematics)
A) What is iridescence?
B) What is the proof that light is a wave?
C) What is the diffraction limit of resolution?
D) Why are reflective and non-reflective coatings used on instruments?
E ) What is the Holographic Universe?
F) How does Holography produce 3-D images?

Problems: 13, 14, 29, 54, 56, 71

Mastering Physics

Test 3 - Tuesday August 7, 2007
Relativity, Quantum Physics,
Nuclear Physics and Cosmology

Chapter 27
Special Relativity

My Questions
A) How did Inertial Frames of Reference enter the into Einstein's Theory of Relativity? And, how did this effect the speed of light?
B) Derive the time Dilation formula.
C) What led Einstein and others toward the realization that time was not absolute?
D) What is the Twin Paradox? Why is it a paradox---not a paradox?
E) In the video, Mechanical Universe, how did Michelson and Morley try to discover the Aether.
F) In the video, Elegant Universe, gravity is explained. What is gravity?
How is Einstein's view of gravity different than the view proposed by Newton?

Exaples: 1, 2, 3, 4, 5,
 A examples,7,32
MC Questions: 4,6,10,11,12
Problems  [4,5,7,8,9],[11,12,13,14,15],[16,17,18,19,20],[37,38,40,45,48,54]

Mastering Physics

Chapter 28
Photons Electrons and Atoms

My Questions
A) Why is Classical Physics so much different than Quantum Physics?
B) What were the three experiments that brought an end to the Classical world-view?
C) Explain Blackbody Radiation, Photoelectric Effect, Line Spectra and the Compton Effect.
D) How was the nucleus discovered?
E) What's wrong with the Bohr Model of the atom?
F) What is the wave-particle duality?
G) How does the Uncertainty Principle allow for a very strange Universe?

Figures: PE, LS, CE, 28.5,6,8,9,11,12,17,20,22
Fire!, The Physics of Fireworks, A microscopic muncher, Boron-Neutron Capture Therapy

Examples: 2,3,7,10
MC Questions: 1,2
Questions 2,3,4,8,9,12
Problems [1,2,4,7,8,10,11,13,
15], 40,49,51,52

Mastering Physics

Chapter 30
Nuclear and High Energy Physics

My Questions

Figures: 1, 3, 5, 6,7, 10, Table 3,
Examples: 2,4,5,

Mastering Physics

Test 4 - Friday, December 12, 2008

Audio Extra Credit: Read, Angels from Time to Come, and answer the question in audio!
What is Quantum Entanglement (audio)? What is the purpose of an Angel?
What scientific evidence does Turner use? Summarize and react to Turner's article.
(5 min. max)

1. There is a good voice recorder for Windows at <Audio Recorder>
2. You can also do this in MSWord. Go to Notebook Layout View and open Audio Notes.
Type in what you want to say. Click on the record button and speak.
You can save the Word document and send it to me. Cool. . .
3. How to use the sound recorder on Windows 2000.
Please do not read word-for-word. Use an outline. Try to sound like you are talking to someone
    Your First Personal Audio Recording - On Intelligence

This is your first attempt at articulating who you are, what you know and what you have learned.
This assignment will allow you to compare your ability to articulate and compare yourself with your classmates.

What do I talk about?

Tell me about yourself. Why are you taking Physics 180B? What are your career plans? Listening to, On Intelligence (Senses 1,2,3), you heard that spatial and temporal patterns of signals are sent your neocortex. Explain what this means and how it is done. What are some examples the author uses to demonstrate that the signals are the same? Why is knowing the way we process the world around us important? How does this recording relat to P180B? Try to be more interesting than you really are. . .ha! No more than 10 minutes, please! You could get together with a classmate and have a conversation about the audio recording.
There are no correct answers.
This is a positive recording. Have fun with it.

Use an outline. Please do not read word-for-word. Try to sound like you are talking directly to someone.
Reminder, your recording should be at least 8-10 minutes long. Imagine that you are being asked questions
by an interviewer who wants to hire you or admit you to their Graduate School or Medical School!

Audios less than 5 minutes will get 50% of the points!

How do I record it?

How to record your voice. . .
A. You can use the PC's recorder. Instructions
B. There is a good voice recorder for Windows at Audio Recorder
C. How to use the sound recorder on Windows 2000, sound recorder on Windows XP, thanks Joe.
D. Save it in mp3 format, please!
E. Save your file:
audio file name:
example: DiMauro_OnIntelligence

Make sure that you record it correctly. If I can't hear it, then you don't get credit.
Test it out, first. Make sure you are recording correctly.
It should not be larger than 12 megabytes!
Set your parameters in your recording software.

Where do I send my audio file?

Email your audio file to me.

email to: tdimauro@gmail.com
Please name your file correctly. I will take off 5 points for any wrongly named audio file!

Problems (Examples I, II, III, IV, V, VI)
1) Diagrams help you communicate what you know about the problem at hand. Draw them carefully.
Label any parameters. Be neat and concise. Your diagram should be first. It is NOT for show!
2) Reasoning is important. I only want you to tell me in, a concise manner, why you are proceeding in a certain manner.
Why did you set something equal to zero? Why is the momentum before = zero. Why is it possible
to set the KE before= PE after, etc. Be neat and concise. You do not need reasoning for obvious algebra steps.
You do not need paragraphs of useless information.
3) Your Solutions should start from the basic physics principle not from a derived equation.
You can leave some algebra steps out but not the important ones.
4) I suggest that you use color. Only, if you know how to use the color, should you use it. Ex.1,2,3
5) Most important: Please keep all solutions to one page. If you can fit two solutions on one page. . .good.
Do not start a solution on one page and end on another.
6) Work the problem out on scratch paper then transfer it to a clean piece of paper. Do this for all your problems.
This is a good way to clear up any mistakes and it will help you study for the test.
7) Comment on your answer. Does it make sense? Did you expect this answer? Does it provoke any response?
Solving problems from first principles is a process. You are trying to communicate your
understanding of the observed patterns in nature.
This is not hard. Read the book, follow the examples, and apply your skills.

Use the questions below as a guide in preparing your homework,
1) How would I explain this problem to my friend who is in the class?
2) Would a diagram help my friend understand the physics concepts?
3) My friend seems to be asking very specific questions? Should I explain every step of the problem,
or are their some steps that I can ignore because they are obvious?

Student Examples 1,2,3,4,5,6,7,8,9,10

Ch 16 and 17 Homework Examples: 1,2,3,4,5,6
Ch 18 and 19 Homework Examples: 7,8,9,10
Ch 22, 23 Homework Examples: