**Physics 12 – Mr. Calzavara** – Course Overview Extra Help in the Library at Lunch Mondays, in Room 201 at lunch most other days. After school in Library, usually.

June 14 Pick any 5 questions from the Extra Practice for chapter 3, (p117) 4, (p155) 5 (p217) 6 (p259) and hand in for 10 marks

June 13 more exam review exam review hints

June 12 – old exam copy to study from

June 9 Electromagnetics test

June 8 exam review

June 7 : assigned page 117 (all) and page 155 #2,3,4,6-9,11-15 for exam review

June 6 : handed back Transformer sheet, and did sample test electromagnetics sample test KEY

June 5: handed back electromagnetism worksheet and gave transformers Worksheet to review Transformers concepts

June 2: Flux and generating electricity Flux notes

June 1 : Transformers transformerNotes

May 31 : discussion of back Emf with stall current, efficiency and eddy currents : backEmf continued also handed out worksheet due in class : **Electromagnetism Worksheet**

May 29-30 : Discussion of electricity generation concepts, took up questions assigned,page282 answers notes on counter voltage :backEmf Read rest of chapter 8

May 26: TEST on circuits – Don’t forget to do homework for Monday

May 25: Electromagnetics – sample questions discussed, Induction introduced , notes and homework and reading assigned: Electromagnetics notes 2 NOTE: TEST TOMORROW ON ELECTRIC CIRCUITS – treat your electric circuits assignment as a sample test, similar questions and a more complicated version of last question for the test.

May 23-24 : Electromagnetics intro – Electromagnetics Intro notes

May 16 & 17 : Electric circuit Dead Battery lab and spreadsheet started

May 15: Answers to Elec Circ P254 Ch6 review

May 10-12: Grad retreat

May 9: Assign electric circuits WorkSheet collected in class.

May 8: Took up #1-3, continued with 4-9 in class. answers:electric circuits page 252

Start Chapter 6 Review page 254 # 5-7, 11-25

May 5: took up sample worksheet, worked out Kirchhoff’s current and voltage laws, applied to series-parallel complicated circuits assigned page 251 #1-3 Notes: electric circuits Kirchhoff

May 4: Internal Resistance of Cell formula (read page 235) and series parallel circuit analysis CellResistance Series Parallel (Sample worksheet **electric circuits sample** )

May 3: Test – Page 239 #1-7, 11,12,15 for homework

May 1 -2 : Some extra Electrostatics review, worksheets handed back, and electric circuits review electric circuits review

April 28: Hand in assignment, and took up sample test sample Electrostatics test answers TEST ~~Tuesday~~Wednesday

April 27: worksheet 2 (Hint for confusing 9 : Estatic worksheet 2 number 9 answer

April 26 : Took up assigned page 214 #1-10 and fixed errors in textbook key. Page214Answers

April 24-25 : Took up electrostatics handout electrostatic work KEY and ran the CRT demo showing how the voltage deflects the electron beam on the screen.

April 21 : Voltage and electric potential and how TV tubes worked. electrostatics next

April 20 : Shortened class on electrostatics

April 19 : Test

April 18: page 175 #2,3,4,6,7,10 exercises on electrostatics, discussion of electric fields, reminder of Circular Motion Test tomorrow – continue reading section 5.3, p 177 for homework

April 12-13 : Electrostatics electrostatics intro

April 11: Circular motion Circular Motion sample test key

April 10 : looked at some of the circular motion h/w , esp. #15 which we solved/deleted – This needs to be handed in ASAP! Sample test tomorrow, test next week . Discussed start of Electrostatics unit.

April 6: Notes on gravitational potential energy using new formula E_{p}=-GM_{earth}*mass / d is used when distance is changing so much that g changes. Far from earth but not changing distance much means you should calculate the new g to use with Ep=mgh. Assigned p 151 #1-7, 9-12, 14-17 for hand in tomorrow

April 5 : **Circular Motion Apr 5**

April 4: Combining circular motion and gravity formulas and solving distance, speed and time problems for orbiting satellites: Circular Motion Apr 4

Apr. 3 : Discussing concepts of circular motion from pages 120-124, notes: Circular Motion Apr 3 continue reading, and ensure that Friday’s exercises are done (page 105 #8-10,12,14 and page 111 #3,4)

Mar 31: Review exercises on Work, Energy Power – take them up Monday

Mar 30 : Test –

Mar 29 : finished sample test, reviewed Energy-Work-Power-Efficiency mar 29b

Mar 28: Sample test dynamic-momentum-sample discussed, partially answered : mar 28

Mar 27: Reviewed Dynamics material- remember to hand in the Dynamics Worksheet! mar27 notes

Mar 10 : Answers to p 91 : momentum2d answers

Mar 9: Momentum in two dimensions: conserve the components in the vectors when solving for the three piece break-up question: momentum2d

Mar 8: test

Mar 7 : Dynamics worksheet Dynamics Worksheet and then study for tomorrow’s test.

Mar 6: Handed back p 68 assignment, took up 7-9 also. Notes on ramp forces and tension calculations mar 6 do #3 p77 for homework and study for Wed. Test on projectile motion

Mar 3: Read pages 70 – 76, be sure to do the quick check and practice problems on page 72-73. For the sample problem on page 76 EMPHASIZE that the force of gravity on an object on a ramp is now 2 COMPONENTS, which I call F – ALONG the ramp (pulling object down the ramp, parallel to ramp surface) and F – INTO the ramp, which becomes the new F-Normal if there is friction on the ramp. IF x is the angle of the ramp with horizontal, then F-ALONG = m*9.8*sin x and F-INTO = m*9.8 * cos x Now work through the sample problem on page 76 and try to apply those same techniques to questions 1 and 2 on page 77

Mar 1-2: Classes interrupted by presentations!

Feb 28 : Practice Quiz Projectiles Finish this up for March 2

Feb 27 : Answers to p65 ProjectileMotionAgain with an emphasis on making sure your work is communicating the solution by following the format discussed – formula then substitution, then answer, WITH WORDS possibly explaining why this formula etc.

assigned page 68 #1-6 for hand-in homework

Feb 24: More Projectile motion examples : ProjectileMotion2

For Homework: Page 65 #4-7

Feb 23 :Test!

Feb 22: Discussed projectile motion definitions and relationships, assigned #1-4 page 62 to be done for FRIDAY, since tomorrow is the quiz. ProjectileMotion

Feb 21: Took up the 3 questions on page 40, set test date for Thursday, and started kinematics reviewP40 and Kin review

Feb 20 : returned homework marked, discussed final golf question, and previous answers to sample quiz. Looked at ladder question on page 38, and added analysis of person on ladder moving upwards. Feb 20 Ladder Torques Do page 40 for homework, to help prepare for an upcoming quiz.

Feb 17: Collected h/w, handed out VectorTorqueSampleQuiz answers: VectorTorqueAnswers

Feb16 : took up extra 4 questions Feb 16, assigned p35 #5,6,9,12-15,17 for hand in tomorrow

Feb 14-15 : Finished snowday summary added diving board question analysis and re-assigned the four extra questions. Feb 15 Torques

Snowday Wednesday Feb 8 : You should have completed page 33 questions by now, here are the worked out answers, with explanatory notes: At the end of this is 4 more questions not from the textbook for homework – Solve these on a sheet to hand in next Tuesday (first day back after the holiday!) P12SnowDayWednesday

Snowday Tuesday Feb 7 : Read pages 23,26,27,29,30 in text if you have it – also here in the notes, assignment is page 33. Email me at jcalzavara@stjohnbrebeuf.ca if there are questions NOTES: P12SnowDayTuesday

SNOW DAY Feb 6 : Finish questions 2,3, and 4 on page 10, and numbers 4,5,6 on page 21,

then **create your own river crossing problem, and solve it**

If you do not have your text the questions are :

Page 10: 2) What is the magnitude of the resultant vector when adding 9.0 N [E], to 5.0 N [W] and 3.0 N [S] ?

3) A football player is pushed by two others, 50.0N [E] and 120.0 N [N] What is the resultant magnitude and direction of these forces?

4) What is the resultant force of 100.0 N[N] + 50.0N[E] + 220.0 N[S] ?

Page 21: 4)A force of 78 N is pushing on an angle of 40 degrees to the horizontal, what is the horizontal component of the force?

5) What is the resultant displacement of 225 m[N] and 125 m[E] ?

6) A seed falling at a steady 0.48 m/s is also drifting right due to a wind of 0.10 m/s. What is the magnitude and direction of the resultant velocity? (Is your final angle Down of Right, or did you use Right of Down? )

Feb 1: Showed solution to Force table problem, started page 10 problems. Feb 1

Jan 31 : Vector subtraction and navigation related problems. Sample Force Table problem, forces are vectors, can you calculate the mass and angle needed to balance 3 other forces? Jan 31

Jan 30: Vectors and the math used to work them as components Jan 30