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

4/1-4/11

• Mon 4/1:  Check off problems 17-20 problems and go over.  Simple Harmonic Motion Problems.  Do 21-25 for Tues/Wed.
• Tues/Wed 4/2-4/3:  Check off problems 21-25 and go over.  Take data for Speed O' Sound Lab in shifts.  When not taking data, do Slinky Demonstrations in the hall.  Hand out 12+13 Review Sheet.
• Thurs/Fri 4/4-4/5:  Work Day!  Do write-up for Speed O' Sound Lab (neat data table, sample calculations, and conclusion).  Work on 12+13 Review.  Review concepts like speed of sound in different media, Doppler Effect, sonic boom, resonance, and sound graphs.  Next week you have your Musical Instrument Project and 12+13 Test on Wed/Thurs!!  Musical Instruments demonstrated on Mon/Tues get a bit of extra credit.
• Mon/Tues 4/8-4/9:  Quick Jeopardy Review for 12+13 Test.   Demonstrate instruments early for some extra credit.  Go over answers to 12+13 Review.  
• Wed/Thurs:  4/10-4/11:  Deadline for late work/extra credit for 3rd Quarter.  Demonstrate Musical Instruments.  Turn in instrument write-up.  Questions on 12+13 Review?  Turn in review and take test.  
• Friday 4/12:  Teacher Work Day.  No School!