Answers to Final Review Packet (#14 corrected!)

1.  3.36 x 10^-8 N
2.  1.0 N m
3.  18.0 rad/s
4.  5.76 s, 0.174 Hz
5.  28 Hz, 85 Hz, 140 Hz
6.  0.25 W
7.  7.1 cm, larger, real, inverted
8.  33 degrees
9.  64 cm
10.  6.61 x 10^-14 N
11.  Draw field with twice as many lines towards -4 charge, lines go away from +2 and towards -4, although not all lines go from one to the other, some go from or towards "infinity"
12.  25 V
13.  9.0 ohms
14.  110 V
15.  175 ohms
16.  21 A
17.  6.4 ohms
18.  8.0 ohms

End of the Year/Deadline for Late work/Extra Credit is Monday 6/10!

Can you believe it is already the end of the year!?  This week we will be taking the Final Exam.  It will cover our units on Rotational Motion (7+8), Waves and Sound (12+13), Light (14+15), and some Electrics.  I highly recommend that you do the practice problems to help get ready.  Some details about the final:

1) On Thurs 6/13 at 10:30-12:30 for 5th period and Fri 6/14 8:10-10:10 for 3rd period
2) A combination of Multiple Choice, Problems (show work, include units, and sig figs), and short answers
3)  You may use a 4" x 6" (or smaller) note card written on both sides.  Go through the review packet to help determine what you need to know.
4)  You must finish in the time allotted unless you have an IEP/504 plan that gives you extended time
5)  Cheating will result in a 0 for the final exam (not partial credit).  Don't do it!
6)  Exam will count as 20% of the semester grade

5/13-5/31

• Mon 5/13:  Static Electricity Lab:  1st Half.
• Tues/Wed 5/14-5/15:  Go over the difference between charging by conduction and charging by induction.  Finish Static Electricity Lab.  Turn in today or Thurs/Fri.  Take data for Equipotential Lab and photocopy the grid for your group members.  We will talk about what to do with this on Thurs/Fri.  
• Thurs/Fri 5/16-5/17:  Turn in Static Electricity Lab if not already.  Discuss how to write up Equipotential Lab.  Completed grid and lab questions due by Monday.  Coulomb's Law: how to use it  and comparison to Universal Law of Gravitation.  Problems 1-7 on Coulomb's Law Problems due Tues/Wed.
• Mon 5/20:  Turn in Equipotential Lab if not already.  Questions on Coulomb's Law Problems?  Go over an example of using Coulomb's Law with 3 charges and adding vectors.
• Tues/Wed 5/21-5/22:  Check of Problems 1-7 and go over.  Example of vector addition in 2 dimensions.  Problems 8-10 due Thurs/Friday.   Practice drawing electric fields.  Research for Physics on the Edge Project.  
• Thurs/Fri 5/23-5/24:  Check off problems 8-10 and go over.  Research for Physics on the Edge Project.  Make sure that you have your needed resources and that you have figured out what you will do for all of the parts, especially the visual aide (no cut-outs from the internet!!).  Physics on the Edge project due next Thursday/Friday.  We will start presentations on that day and finish the following Monday/Tuesday.
• Monday 5/27:  Memorial Day.  No School.
• Tues/Wed 5/28-5/29:  Electrical Resistance.  Ohm's Law.  Final touches on Physics on the Edge projects.  
• Thurs/Fri 5/30-5/31:  Physics on the Edge Projects Due.  We will have presentations from half of the groups today and finish on Monday/Tuesday.

Answers to 14+15 Review for Test on Thursday/Friday 5/9-5/10

1.  7.1 x 10^-7 m
2 (1).  28.4 cm, smaller, real, inverted
3 (2).  11.3 cm
4 (3).  -20.0, real, inverted, larger
5 (6).  23 degrees
6 (4).  q = 170 cm, M=2.71 x 8.0 cm = 22 cm
7 (5).   f = 200 cm, larger, virtual, upright
8 (7).  critical angle = 37 degrees, so light is refracted
10.  wavelength change?  yes.  frequency change?  no
11-14  get these from your notes or the Physics Classroom website

*We realized during 5th period today that some students had a different version of this review sheet.  The numbers in parentheses up above indicate the problem number on this alternate review sheet.  As you can see, problem #1 was not on this review sheet, which is fine because this type of problem will not be on the test.

4/29-5/10

Snell's Law Lab is due Wednesday 5/1 (period 5) and Thursday 5/3 (period 3).  We are having a 14+15 Test on Thursday/Friday 5/9-5/10.  We are also starting a new project.

• Mon 4/29:  Finish checking off 9-11 and go over.  Making graphs for Snell's Law Lab.
• Tues/Wed 4/30-5/1:  Turn in Snell's Law Lab (period 5).  Check off problems 12-16 and go over.  Notes on diverging lenses and rainbows.  Problems 17-20 for Thurs/Fri.
• Thurs/Fri 5/2-5/3:  Turn in Snell's Lab Lab (period 3).  Check off problems 17-20 and go over.  Corrective lenses and the human eye.  Hand out 14+15 Review and work on it.  Hand out Physics on the Edge Project.
• Mon 5/6:  Go over 14+15 Review.  Questions on Controversy Project?
• Tues/Wed 5/7-5/8:  Controversy Project Research.  Questions on 14+15 Review.
• Thurs/Fri 5/9-5/10:  Turn in 14+15 Review.  Take 14+15 Test.  Start Static Electricity.

4/15-4/26

3rd Quarter Grades Are Updated.  Check yours and see if you have any questions.  There is a SPARK lecture on Earthquakes on Monday 4/15.  Write ups for SPARK lectures are due by Friday of the week they are given and will now only be accepted through turnitin.com.  

• Mon 4/15:  Electromagnetic radiation.  Electromagnetic spectrum.  Reflection of light.  Start mirror equation.
• Tues/Wed 4/16-4/17:   Law of Reflection.  Curved mirrors.  Ray diagrams for determining locations of images.  Mirror equation.  Problems 1-4 on 14+15 problem set.
• Thurs/Fri 4/17-4/18:  Convex mirrors and the mirror equation.  Finish problems 5-8 on 14+15 problems.  Reflection and seeing colors.  Additive colors and subtractive colors.  Complementary colors.
• Mon 4/22: Check off problems 1-8 on 14+15 problems and go over.   Light and refraction.  Drawing the refraction of light through a translucent substance.
• Tues/Wed 4/23-4/24:  Snell's Law Lab.  Lab write-up due Tues/Wed 4/30-5/1.  Do problems 9-11 for Friday.
• Thurs/Fri 4/25-4/26:  Check off 9-11 and go over.  Critical angle (work time on problems 12-14 for Monday).  Lenses.  Drawing ray diagrams and using lens equation.  Problems 15-20 on 14+15 WS for Tues/Wed.    Remember that the Snell's Law Lab is due Tues/Wed 4/30-5/1.

Answers to 12+13 Review Sheet (Test on Wed/Thurs 4/10-4/11)

Sorry about getting them up here so late!

1.  0.0055m
2.  4 nodes
3.  1/9
4.  0.25 W
5.  180 Hz, 540 Hz, 900 Hz
6.  100 dB
7.  5.01 W/m^2
8.  0.20 s
9.  70.1 Hz, so 285 harmonics
10.  3.0 x 10^3 Hz
11.  0.25 s, 4.0 Hz
12.  27.9 N
13.  4.07 s
14.  17.5 m/s^2
15.  T = 2.84 s, so 105 complete oscillations