http://www.nearingzero.net (nz276.jpg)

note that the Physics 2135 final exam is not listed above as something you can’t prepare for

December 18, 2014

Adapted from http://www.lab-initio.com/screen_res/nz394.jpg.

LEAD Tutors/Peer Instructors Needed!

You can tutor or be a PLC peer instructor if you have at least a 3.6 GPA and get an “A” in the course you want to tutor.

Contact me or go to http://lead.mst.edu/ to fill out the application form.

It looks good on your resume, pays well, and is fun!

Announcements

“It’s always the darkest before it totally goes black.”—Anonymous

If anything about your grade

needs fixed, fix it now (next week is too late)!

See your recitation instructor! (Not me!)

Pick up the Final Exam Preparation Homework from the back of the lecture hall (or get it from the Physics 2135 web site).

Announcements

Final Exam All exams will be given at the announced time in the rooms listed on the next slide. Only those students needing Test Center facilities will take their exam elsewhere.

If you don’t get an e-mail from me two days before the final exam about taking your exam at the Test Center, you are not on the list to take it there.If you are taking your exam at the Test Center, check in prior to exam start time. If you arrive 15 minutes late, you will not be allowed in.

Final Exam procedures: see this.

The Final Exam and End-Material Tests are designed to give students a fair chance to improve their grades. A high score on either test does not demonstrate that a student deserves an “A” in the course regardless of his/her other exam scores.

Know the exam time!

Find your room ahead of time!

If at 7:30 on test day you are lost, go to 104 Physics and check the exam room schedule, then go to the appropriate room and take

the exam there.

Physics 2135 Final Room Assignments, Spring 2015:

Instructor Sections RoomDr. Kurter F, H 120 BCHDr. Madison E, G G-5 H/SSDr. Parris K, M 103 Eng. Mgt.Mr. Upshaw A, C G-3 SchrenkMr. Upshaw J, L St. Pat’s CDr. Waddill B, D 103 & 104 Centennial

See notes on next slide for information about room locations.

Special Accommodations Testing Center

Exam is from 7:30-9:30 am

FridayMay 15!

No one admitted

after 7:45 am!

Physics 2135 Final Room Assignments, 7:30 AM, May 15

Instructor Sections RoomDr. Kurter F, H 120 BCH

BCH is Butler-Carlton Civil Engineering Building

Dr. Madison E, G G-5 H/SS H/SS is the Humanities/Social Science Building

Dr. Parris K, M 103 Eng. Mgt. Eng. Mgt. Is the Engineering Management Building

Mr. Upshaw A, C G-3 Schrenk G-3 Schrenk is your ”normal” exam room

Mr. Upshaw J, L St. Pat’s CSt. Pat’s C is St. Pat’s Ballroom C in Havener Center

Dr. Waddill B, D 103 & 104 Centennialthis is two classrooms in Centennial Hall with a sliding partition between them

Special Accommodations Testing Center

Announcements

PLC

If I get an email requesting it, faculty will check PLC occasionally Wednesday afternoon and provide help to any students who show up.

There will also not be PLC Wednesday evening unless students request it. E-mail me by noon today if you want a Wednesday evening PLC.

End-Material Test Format

8 questions from assigned material in chapters 11-14 (33-36):

some questions are conceptualsome questions involve simple calculationsone “free” question worth 8 pointsother questions are worth 6 points each(if you can’t figure out the “free” one, maybe you shouldn’t get the points?)

You can take as much of the 2 hours on final exam day as you want to work on the end-material test.

You already have your 8 free points and must not show up if that is all you want!

Final Exam Format

200 points total from the following material:20 to 40 points from test 1 material20 to 40 points from test 2 material20 to 40 points from test 3 material80 to 100 points from end material.

All problems, some ”in-line” multiple choice.

The problems may be 40-point problems, 40-point problems with more than one part, or two smaller problems worth 40 points total.

Physics 24 Topics

Part 1:Coulomb’s Lawelectric fieldselectric fields from charge distributionsmotion of a charged particle in an electric fieldGauss’ Lawelectric potentials and electric potential energy

Topic of a test preparation homework problem.

Topic of a final lecture problem.

Final exam problems may come from topics not covered ontest preparation homework or during the final lecture.

Physics 24 Topics

Part 2:capacitance, dielectrics, energy storage in capacitors, capacitors in series and parallelcurrent density and drift speedOhm’s law, resistors in series and parallelelectric poweremf, Kirchoff’s Rulesrc circuits, electrical instruments

Topic of a test preparation homework problem.

Topic of a final lecture problem.

Final exam problems may come from topics not covered ontest preparation homework or during the final lecture.

Physics 24 Topics

Part 3:magnetic forces on moving charged particleswires carrying currentssolenoids, magnetic fields from current-carrying

wirescalculation of magnetic field using Biot-Savart

Law Faraday’s Law, induction, motional emfelectric field produced by changing fluxmotors, generators, transformerselectromagnetic wavesTopic of a test preparation homework problem.

Topic of a final lecture problem.

Final exam problems may come from topics not covered ontest preparation homework or during the final lecture.

Physics 24 Topics

Part 4:Snell’s Law, total internal reflection, fiber opticsmirrorslensesinterference (double slits, thin films)diffraction

Topic of a test preparation homework problem.

Topic of a final lecture problem.

Final exam problems may come from topics not covered ontest preparation homework or during the final lecture.

Test Preparation homework focuses on material after exam 3.

This lecture focuses on material before exam 3.

Be sure to study both if you intend to take the final!

Final Exam

Review

The problems in this lecture are the standard “exam review lecture” problems and are not a guarantee of the exam

content, nor are they intended to “tell” you what to study for. Expect final exam questions from material not covered

in today’s lecture!

Please Look at Prior Tests!

Two identical point charges +Q are located on corners of a square of side L, as shown in the diagram. A point charge of +2Q is located at the origin.

Find the Coulomb force on the point charge at the origin.

x

yL

L

+Q

+2Q

+Q

For the resistor system shown, R1 = 3 , R2 = 20 , and R3 = 30 .

(a) Find the equivalent resistance.

(b) The power dissipated by R3 is 480 W. Find V0.

V0

R1=3

R3=30

R2=20

A proton is accelerated from rest through a potential difference of V. The proton then enters a uniform magnetic field that is perpendicular to its velocity. In the magnetic field, the proton follows a circular path with a radius R.

(a) Determine the speed, v, of the proton when it enters the magnetic field.

(b) Determine the magnitude of the magnetic field and the period, T, of the proton’s motion in the magnetic field.

(c) Suppose the proton exits the magnetic field region after it has completed a half-circular path. What is the proton’s speed when it exits the magnetic field region?

A small generator consists of a flat, square coil of 120 turns and sides of length 1.60 cm. The coil rotates in a magnetic field of 0.75 mT.

(a) Derive an expression for the time dependence of the magnetic flux B through each turn.

(b) What is the angular speed of the coil if the maximum emf produced is 24.0 mV? (104/s or 655 rev/s or 39270 rpm)

(c) What is the orientation of the coil when the emf is a maximum?

(d) What is the orientation of the coil when the magnetic flux through the coil is a maximum?

A light beam is incident at an angle on the top surface of a block of plastic. Find the maximum value of for which the refracted light is totally reflected from the left face of the plastic block, if the block is immersed in water. (nplastic=1.49, nwater=1.33).

63.2042.2

“I regret to announce — this is The End. I am going now. I bid you all a very fond farewell. Goodbye.”—Bilbo Baggins

θ

Plastic

Air

Water