p12outline.docx | |

File Size: | 18 kb |

File Type: | docx |

1. Wed, Sept 7

Chapter 1 (section 1.4)

Unit 0: Vectors

Introduction to the most one of the most essential mathematical skills for Physics 12: Vector Algebra in 2 dimensions. There is a quiz

NEXT CLASS (Fri, Sept 9 (1,2); Mon, Sept 12 (8)) on basic right triangle trigonometry.

2. Fri, Sept 9

Chapter 1 (sections 1.6, 1.7, 1.8)

Unit 0: Vectors

Expanding the concept of vector components in order to perform vector addition in 2 dimensions.

3. Tues Sept 13

White board group-work on vector addition. Vetorama Worksheet was given out. Practice! Speed is a factor. Adding two 2D vectors should take ~7 minutes.

4. Thurs Sept 15

Subtraction. Vector subtraction is best thought of as "addition of the negative". A-B = A+(-B). We know how to find -B, and we know how to add so there ya be. See the vector algebra worksheet and answer key.

5. Mon, Sept 19

Today was a work period to prepare for the year's first test! VECTORS.

Quizzes were returned.

6. Wed, Sept 21

TEST

7. Mon, Sept 26 (Start of UNIT 1: KINEMATICS)

Kinematics in 2D. You've been tested on adding vectors, now let's find out if you can apply that skill!

8. Wed, Sept 28:

Projectile motion introduction, focusing on horizontal launch.

9. Mon, Oct 3

More projectiles. Launch over level ground, and the general case.

QUIZ NEXT CLASS!

10. Wednesday October 5

QUIZ and Practice! Practice and Quiz!

11. Fri, Oct 7

Quizzes Returned.

Graphs of motion.

12: Wednesday Oct 12

Relative Velocity. Motion of objects relative to other moving objects. Included "The Subscript Rule".

See section 3.4 of the text book.

E N D o f K I N E M A T I C S

Test on Tuesday October 25.

13: Friday Oct 14 (START of UNIT 2, DYNAMICS)

Re-introduction to newton's three laws of motion. Included demonstrations of INERTIA, examples of the second law and third law.

14. Thursday Oct 20

More Dynamics! Review of 4 of the 5 simple forces in this unit, gravity, normal, tension and friction.

15. Tuesday Oct 25

KINEMATICS TEST!!!!

16. Thursday Oct 27: Systems of Objects

We hinted at it with the second example done on Thursday Oct 20. Now we will formalise the technique for some typical applications.

17. Monday October 31: The inclined plane.

Today we learn a little "twist". Examples of problems of objects on inclined planes.

18. Wed Nov 2

START UNIFORM CIRCULAR MOTION

a=(v^2)/r

19. Friday Nov 4

Circular Motion examples: Toy plane on a string flying in a circle.

Still just 2D dynamics. Draw a FBD, separate into x and y. @ equations, 2 unknowns... SOLVE.

20. Tueday Nov 8

Dynamics Quiz

More examples with toy cars. Loop-de-loop, banked turn.

21. Thursday Nov 10

Satellites in circular orbits.

22. Tuesday Nov 15

Proof of a=v^2/r.

23. Thursday Nov 17

D Y N A M I C S T E S T

24. Monday Nov 21:

Final examples. Vertical loop again. Mass on string. Bucket of water demo. Banked turn with friction.

Artificial gravity.

25. Wed Nov 23:

Beginning of a new topic: TORQUE and ROTATIONAL EQUILIBRIUM.

We looked at a simple dynamics example which required 2 equations in 2 unknowns to solve. We got the two equations from x-hat and y-hat. No problem.

But then I presented a similar, arguably simpler, problem that had no x-hat. Now we were stuck with one equation with 2 unknowns, which is unsolvable!

To help, we introduced a whole new concept: TORQUE.

See sections 9.1 and 9.2 of the text.

26: Monday Nov 28

Finish problem from last class. Discuss ROTATIONAL EQUILIBRIUM. Look at a common example of a sign hung from a rigid pole, held in place by a cable.

27: Wednesday Nov 30

TORQUE QUIZ

Force at the end of a beam.

Centre of Mass

28: Friday Dec 2

C I R C U L A R M O T I O N T E S T

29: Tues Dec 6

Examples to see when and why anyone would ever want to use the lever-arm/line of action definition of torque. Applied this to the example of pushing a block, will it tip? will it slide?

30: Thurs Dec 8

Dolley Question (a classic!). This type of question, along with a ladder question WILL BE ON THE TEST!

Also discussed tipping point questions

31: Mon Dec 12

Circular Motion Lab. The purpose is to practice collecting data. We will analyse the data later!

32: Wed Dec 14

Talk about graphing, normalizing and determining the meaning of the slope.

33: Fri Dec 16

T O R Q U E T E S T

34: Wed Jan 4

Group work review of momentum and impulse from grade 11.

35: Fri Jan 6

Derive the Impulse momentum theorem from N2, and the law of conservation of linear momentum from N3.

Two Dimensional Collisions.

36: Tues Jan 10

MOMENTUM QUIZ

Introduction to ENERGY NOTES

Introduction to WORK NOTES

37: Thurs Jan 12

The work energy theorem. Starting from Newton's Second Law we developed the formula for kinetic energy and the work energy theorem in the form Wnet=DELTA(K)

38: Mon Jan 16

Ug=mgh. Conservation of energy NOTES

39: Wed Jan 18

Conservative vs. Non-conservative forces. Potential energy and the work energy theorem.

Wnc=DETA(K) + DELTA(U)

Friday Jan 20

Tues Jan 24

Thurs Jan 26

Wed Feb 2

This is a challenging concept at first. Negative potential energy. The idea is that if two massive objects are infinitely far apart they will have ZERO POTENTIAL ENERGY; they apply no force to one another, thus at infinite separation they have no potential to gain kinetic energy based on their relative position. OK. But as two massive objects (think of a bowling ball and the Earth) get closer together (the bowling ball is lowered toward the surface of Earth) the potential energy DECREASES. So... the objects have ZERO potential energy when infinitely far apart, as they move closer together the energy DECREASES. What kind of numbers are less than zero?

Friday Feb 3

SCIENCE FAIR JUDGING!!!

Tuesday Feb 7

Practice with the new formula Ug=-GMm/r

Check: 1. Does it predict zero U at infinity? YES

2. Does it give increasingly negative values as separation decreases? YES

3. Is it consistent with the approximation Ug=mgh? YES

Thursday Feb 9

Power, Efficiency and Percent elasticity

Tues Feb 14

Practice period to prepare for next day's test!

Thursday Feb 16:

W O R K E N E R G Y and M O M E N T U M T E S T

Tuesday Feb 21:

Begin ELECTROSTATICS. A look a charge and how charges behave in a uniform electric field

KINEMATICS TEST!!!!

16. Thursday Oct 27: Systems of Objects

We hinted at it with the second example done on Thursday Oct 20. Now we will formalise the technique for some typical applications.

17. Monday October 31: The inclined plane.

Today we learn a little "twist". Examples of problems of objects on inclined planes.

18. Wed Nov 2

START UNIFORM CIRCULAR MOTION

a=(v^2)/r

19. Friday Nov 4

Circular Motion examples: Toy plane on a string flying in a circle.

Still just 2D dynamics. Draw a FBD, separate into x and y. @ equations, 2 unknowns... SOLVE.

20. Tueday Nov 8

Dynamics Quiz

More examples with toy cars. Loop-de-loop, banked turn.

21. Thursday Nov 10

Satellites in circular orbits.

22. Tuesday Nov 15

Proof of a=v^2/r.

23. Thursday Nov 17

D Y N A M I C S T E S T

24. Monday Nov 21:

Final examples. Vertical loop again. Mass on string. Bucket of water demo. Banked turn with friction.

Artificial gravity.

25. Wed Nov 23:

Beginning of a new topic: TORQUE and ROTATIONAL EQUILIBRIUM.

We looked at a simple dynamics example which required 2 equations in 2 unknowns to solve. We got the two equations from x-hat and y-hat. No problem.

But then I presented a similar, arguably simpler, problem that had no x-hat. Now we were stuck with one equation with 2 unknowns, which is unsolvable!

To help, we introduced a whole new concept: TORQUE.

See sections 9.1 and 9.2 of the text.

26: Monday Nov 28

Finish problem from last class. Discuss ROTATIONAL EQUILIBRIUM. Look at a common example of a sign hung from a rigid pole, held in place by a cable.

27: Wednesday Nov 30

TORQUE QUIZ

Force at the end of a beam.

Centre of Mass

28: Friday Dec 2

C I R C U L A R M O T I O N T E S T

29: Tues Dec 6

Examples to see when and why anyone would ever want to use the lever-arm/line of action definition of torque. Applied this to the example of pushing a block, will it tip? will it slide?

30: Thurs Dec 8

Dolley Question (a classic!). This type of question, along with a ladder question WILL BE ON THE TEST!

Also discussed tipping point questions

31: Mon Dec 12

Circular Motion Lab. The purpose is to practice collecting data. We will analyse the data later!

32: Wed Dec 14

Talk about graphing, normalizing and determining the meaning of the slope.

33: Fri Dec 16

T O R Q U E T E S T

34: Wed Jan 4

Group work review of momentum and impulse from grade 11.

35: Fri Jan 6

Derive the Impulse momentum theorem from N2, and the law of conservation of linear momentum from N3.

Two Dimensional Collisions.

36: Tues Jan 10

MOMENTUM QUIZ

Introduction to ENERGY NOTES

Introduction to WORK NOTES

37: Thurs Jan 12

The work energy theorem. Starting from Newton's Second Law we developed the formula for kinetic energy and the work energy theorem in the form Wnet=DELTA(K)

38: Mon Jan 16

Ug=mgh. Conservation of energy NOTES

39: Wed Jan 18

Conservative vs. Non-conservative forces. Potential energy and the work energy theorem.

Wnc=DETA(K) + DELTA(U)

Friday Jan 20

Tues Jan 24

Thurs Jan 26

Wed Feb 2

This is a challenging concept at first. Negative potential energy. The idea is that if two massive objects are infinitely far apart they will have ZERO POTENTIAL ENERGY; they apply no force to one another, thus at infinite separation they have no potential to gain kinetic energy based on their relative position. OK. But as two massive objects (think of a bowling ball and the Earth) get closer together (the bowling ball is lowered toward the surface of Earth) the potential energy DECREASES. So... the objects have ZERO potential energy when infinitely far apart, as they move closer together the energy DECREASES. What kind of numbers are less than zero?

Friday Feb 3

SCIENCE FAIR JUDGING!!!

Tuesday Feb 7

Practice with the new formula Ug=-GMm/r

Check: 1. Does it predict zero U at infinity? YES

2. Does it give increasingly negative values as separation decreases? YES

3. Is it consistent with the approximation Ug=mgh? YES

Thursday Feb 9

Power, Efficiency and Percent elasticity

Tues Feb 14

Practice period to prepare for next day's test!

Thursday Feb 16:

W O R K E N E R G Y and M O M E N T U M T E S T

Tuesday Feb 21:

Begin ELECTROSTATICS. A look a charge and how charges behave in a uniform electric field

ws_simple_circuits_draw_current_light_bulbs_no_numbers.pdfThursday Feb 23:

More examples in a uniform field.

Monday Feb 27:

Drawing electric field lines.

Coulomb's Law.

Calculating electric field from point charges.

March 7:

MECHANICS EXAM

March 9:

Introduction to the concept of ELECTRIC POTENTIAL ENERGY, ELECTRIC POTENTIAL and POTENTIAL DIFFERENCE

March 27:

A look at the relationship between potential difference and field IN A UNIFORM FIELD.

Block 1 also discussed further signs on charges in calculation.

Block 2 also discussed the field between parallel plates in terms of charge on the plates and the area of the plates.

April 4:

TOPOGRAPHY FOR KIDS!

We looked at simple topographical maps and then extended that concept to equipotential lines.

This is a very abstract concept and takes some real thinking on the students' part in order to really make sense of it.

April 6:

More drawing! But drawing with math. We calculated the points where potential and field were zero in on the line joining two (one positive one negative) point charges.

We then compared the calculations to the sketch we made last class.

April 10:

Electrostatics Quiz:

Work Period.

April 12:

Introduction to electric circuits.

Basic introduction as to the nature of circuits. What is the job of the battery? What are resistors? What are wires? What is current?

Direction of conventional current flow vs electron flow.

WS drawing current

April 18:

E L E C T R O S T A T I C S T E S T

April 20

The three golden rules of circuits and a bunch of examples.

WORKSHEET

May 3:

Circuit Lab part 1

May 5:

Circuit Lab Part 2

May 9:

Internal resistance.

WORKSHEET

More examples in a uniform field.

Monday Feb 27:

Drawing electric field lines.

Coulomb's Law.

Calculating electric field from point charges.

March 7:

MECHANICS EXAM

March 9:

Introduction to the concept of ELECTRIC POTENTIAL ENERGY, ELECTRIC POTENTIAL and POTENTIAL DIFFERENCE

March 27:

A look at the relationship between potential difference and field IN A UNIFORM FIELD.

Block 1 also discussed further signs on charges in calculation.

Block 2 also discussed the field between parallel plates in terms of charge on the plates and the area of the plates.

April 4:

TOPOGRAPHY FOR KIDS!

We looked at simple topographical maps and then extended that concept to equipotential lines.

This is a very abstract concept and takes some real thinking on the students' part in order to really make sense of it.

April 6:

More drawing! But drawing with math. We calculated the points where potential and field were zero in on the line joining two (one positive one negative) point charges.

We then compared the calculations to the sketch we made last class.

April 10:

Electrostatics Quiz:

Work Period.

April 12:

Introduction to electric circuits.

Basic introduction as to the nature of circuits. What is the job of the battery? What are resistors? What are wires? What is current?

Direction of conventional current flow vs electron flow.

WS drawing current

April 18:

E L E C T R O S T A T I C S T E S T

April 20

The three golden rules of circuits and a bunch of examples.

WORKSHEET

May 3:

Circuit Lab part 1

May 5:

Circuit Lab Part 2

May 9:

Internal resistance.

WORKSHEET