I almost forgot to scribe! Anyways, in class, nothing much happened. It was just a basic free period class to work on review for the upcoming physics exam.
Physics exam:
Monday, January 28 /08
Gym, 1-4
For Grade 12 Physics.
Sunday, January 27, 2008
Friday, January 25, 2008
The End of Grade 12 Physics
Hi everyone:
Good luck to you in writing the exam. Hope this blog helped you in the course.
Thanks to all who contributed, in a big way or in a small way.
Good luck to all of you in any future studies in science (especially physics).
Ms K
Good luck to you in writing the exam. Hope this blog helped you in the course.
Thanks to all who contributed, in a big way or in a small way.
Good luck to all of you in any future studies in science (especially physics).
Ms K
Thursday, January 17, 2008
Today...
Today we didn't do much at all. We watched a Movie on Radio activity. And for the remainder of the class, Ms. K handed out our tests and we went over the answers! ..
Physics exam is coming soon, so study lots!
Physics exam is coming soon, so study lots!
Tuesday, January 15, 2008
Today in Physics....
We went over the questions in the green textbook, and then we went over the review for the test tomorrow.
Reminder that the exam is on the 28th in the afternoon. STUDY STUDY STUDY!
The scribe for tomorrow is...sandy!
Reminder that the exam is on the 28th in the afternoon. STUDY STUDY STUDY!
The scribe for tomorrow is...sandy!
The, super late friday scribe
Big misunderstanding, and I just remembered to do that scribe, now. I did tell Steven... but I guess not. Anyways:
We went over some work sheets, the Chapter 25 study guide, and we were assigned the end of the chapter questions.
Exam is in the Afternoon, Jan 28. 1pm.
Test for this unit is on Wednesday, Jan 16.
Next scribe... Steven.
We went over some work sheets, the Chapter 25 study guide, and we were assigned the end of the chapter questions.
Exam is in the Afternoon, Jan 28. 1pm.
Test for this unit is on Wednesday, Jan 16.
Next scribe... Steven.
Sunday, January 13, 2008
Thursday, January 10, 2008
Wednesday, January 9, 2008
Wednesday, January 8, 2008
OK time to do this.... today in class we had some notes on Electromagnetic Induction and Magnetic Fields. After that we worked on an Electromagnetic Induction worksheet, and also got an Induced EMF sheet that has other formulas and such. We will be going over some of the exercises tomorrow in class so it is best to have those ready I suppose. I am now going to get my much needed rest, haha.
Florjeval can scribe for tomorrow.
Florjeval can scribe for tomorrow.
Monday, January 7, 2008
Scribe #4
Well, time to blog once again. Well today was not very interesting, Ms. K was not in class because it is Ukrainian Christmas which she was celebrating. Well the sub we had in class went over the compound worksheet Ms. K gave out to us just before the Christmas break. Then the sub handed out two worksheets, one was a vocabulary work sheet which had to be done by reading pages 515-529 in the green book prior to completion. The second was a multiple choice worksheet on electricity definitions. Well that was all that was done in class today, make sure to have both of those worksheets completed for tomorrow.
The next scribe is going to be Renan.
The next scribe is going to be Renan.
Friday, January 4, 2008
FIRST OF ALL...
Hey guys! (and Mrs. Kozoriz!) Did you have a great winter break? I finally got this post up. I have been procrastinating on everything. I had so much time that I didn't know when to actually do this post. I didn't realize that we go back to school on Monday until today. Pretty sad... I hope everyone's all pumped up for the new year even though it means GOING BACK TO SCHOOL. No more sleeping in - BOOO!! I hope you guys are happy with all the presents you got from your loved ones. However, we should turn our switches back on to let the current flow in our circuits because guess what? MORE CIRCUITS when we get back! HAHAHA! Anyway...
Here are the answers for those who didn't take them down last year.
1.a)
b) Resistancetotal = 10Ω + 10Ω + 10Ω = 30Ω (The Greek letter, Ω, represents OHMS, which is the unit for resistance.)
(The unit for current, I, is A or amperes.)
c) Currenttotal = 12V / 3.3Ω = 3.6A
d) Potential Drop = 12 V (In a parallel circuit, each resistor has the same potential drop.)
e) Current in each resistor = 3.6A / 3 = 1.2A
f) Power = 1.2A x 12V = 14.4W
3) Series circuit = 2.4 watts; Parallel circuit = 11 watts
4.a) 1440Ω
b) 0.16A
REVIEW:
MERRY CHRISTMAS & HAPPY NEW YEAR
HAPPY HOLIDAYS
Hey guys! (and Mrs. Kozoriz!) Did you have a great winter break? I finally got this post up. I have been procrastinating on everything. I had so much time that I didn't know when to actually do this post. I didn't realize that we go back to school on Monday until today. Pretty sad... I hope everyone's all pumped up for the new year even though it means GOING BACK TO SCHOOL. No more sleeping in - BOOO!! I hope you guys are happy with all the presents you got from your loved ones. However, we should turn our switches back on to let the current flow in our circuits because guess what? MORE CIRCUITS when we get back! HAHAHA! Anyway...
DECEMBER 21, 2007 AGENDA:
We went over the `Simple Circuits` worksheet. I can't remember anything else that happened except for a few people decorating Mrs. Kozoriz's white board according to the aforementioned holiday of the year. Everyone was basically excited for the tantalizing two-week holiday. We were all excited to exit the doors, go home, hang out with friends, and finally be able to sleep in everyday! Of course, there are PRESENTS waiting to be opened.
Here are the answers for those who didn't take them down last year.
1.a)
b) Resistancetotal = 10Ω + 10Ω + 10Ω = 30Ω (The Greek letter, Ω, represents OHMS, which is the unit for resistance.)
c)
(The unit for current, I, is A or amperes.)
d) Potential Drop = 0.4A x 10Ω = 4V (The unit for potential drop is volts, or V.)
e) Current = 12V / 30Ω = 0.4A
(Note that the total current circulating a SERIES CIRCUIT is the same as the current that goes through each of the resistor.)
f) Power = 4V x 0.4A = 1.6W (Watt is the unit for power.)
2.a) 
b) 
c) Currenttotal = 12V / 3.3Ω = 3.6A
d) Potential Drop = 12 V (In a parallel circuit, each resistor has the same potential drop.)
e) Current in each resistor = 3.6A / 3 = 1.2A
f) Power = 1.2A x 12V = 14.4W
3) Series circuit = 2.4 watts; Parallel circuit = 11 watts
4.a) 1440Ω
b) 0.16A
REVIEW:
- Electric Potential - is the electric potential energy per unit of charge
- E = qV
- Electric Potential Difference (voltage) - ∆V
*** It is necessary to determine the total or equivalent resistance of the circuit before other elctrical quantities can be calculated. It is also important to identify the resistors that are in series with each other and those that are parallel with each other.
*** Add the resistors to reduce the number of resistors in the circuit. Begin by looking at the resistors furthest from the source (battery).
- Kirchoff's Current Law - the sum of the currents entering a junction must equal the sum of the currents leaving the same junction
- Kirchoff's Voltage Law - the sum of the potential drops around a circuit must euqal the sum of potential rises around the circuit
- Factors that affect resistance :
- Length - the longer the conductor, the greater the resistance
- Cross Sectional Area- the larger the cross sectional area, the less resistant it is to charge flow
- Temperature - the greater the molecular motion, at higher temperatures, the greater the resistance (not for all substances)
- Type of Material - some materials are better conductors than others.
- RESISTIVITY - general measure of the resistance of a substance, has units Ωm
- where R is the resistance in ohms, L is the length in meters, A is the cross-sectional area, in meters2 and ρ is the resistivity in Ωm2/ m
- Five steps to follow to successfully analyze a compound circuit:
- Each set of parallel conductors must be replaced by a single equivalent resistance
- Each series resistance must be combined to find the total.
- Total current in the circuit can be found using the equation: I = V / R
- The voltage across each series group is found using: V = IR; to check, the total voltage must equal the sum of the individual voltage
- The current in each branch of the parallel conductors can be found using: I = V / R; to check, the total current must equal the sum of individual currents
Oh and I remember now. We got more worksheets for this unit. Make sure you do them! Be careful because they are tricky. You can easily get confused and mix up the rules for series and parallel circuits. See you guys on January 7, 2008. Lastly, the next scribe is DINO!
HAPPY NEW YEAR TO ALL!
HAVE A GREAT 2008!!!
Friday, December 21, 2007
Physics 40S 3rd Period
sorry for the late scribe,!well, yesterday in class we went thru chapter 23 study guide about Simple circuits.then we went also, over the other sheet that Ms. K gave to us on electric current. We answered the sheet. Ms.K showed us a demo about the 5 bulb and a 2 which is the 2 bulb is brighter (parallel) than the 5 (series)and that's it for now....have a good and happy holiday guys..!!
Next Scribe for Friday: Vincent!!!
Next Scribe for Friday: Vincent!!!
Wednesday, December 19, 2007
Scribe Post
Well today we got back our tests after much anticipation of our marks. We went over the Electric Circuits sheet that Ms. K posted the answers to. We went over the 23 chapter guide.
We also were given a lab to do which didn't go all so well because most of us had a hard time understanding exactly what it was asking. I'm guessing that tomorrow we will probably be going over the lab.
Also the test for Electric Circuits has been moved to the second week that we come back from holidays; it will be joined to our next unit as one big test. This happened after lots of complaining of the lack of knowledge in this unit.
That was basically all of today's class, and the tomorrow's scribe will be .........Hall of Fame!
Hope everyone enjoyed the festive colours=)
We also were given a lab to do which didn't go all so well because most of us had a hard time understanding exactly what it was asking. I'm guessing that tomorrow we will probably be going over the lab.
Also the test for Electric Circuits has been moved to the second week that we come back from holidays; it will be joined to our next unit as one big test. This happened after lots of complaining of the lack of knowledge in this unit.
That was basically all of today's class, and the tomorrow's scribe will be .........Hall of Fame!
Hope everyone enjoyed the festive colours=)
Tuesday, December 18, 2007
Electric Circuits
Hello all! I am your scribe for today.
So we had a substitute in today for Ms. K who gave us a few sheets to work on for the class. All of which were about electric circuits. The sub was pretty helpful and not only helped us with using our units and types of circuits but also gave us quite the inspirational speech on being persistent in learning physics.
That's really all that happened today, so I thought I'd include some hyperlinks to some websites that discuss electric circuits that may help anyone who is having trouble with the concepts....
Tomorrow's Scribe will be Nicole!!
1 - December 17 - Scribe
We picked up 3 sheets, The direction of the Electric Current, Chapter 23 Study Guide, Simple Circuits and Henry Cavendish and the First electric Meter. then we did a lab where it was similar to crocodile clips whereby we made circuits where you take light and connect it to an electric supply. Then we answered the questions and then handed it in. We where supposed to correct the test but we had no time.
That basically sums up the class. The next scribe is kim.
That basically sums up the class. The next scribe is kim.
Monday, December 17, 2007
Flashcard Answers
5-1: p kg•m/s vector quantity that factors in the mass and velocity of an object
5-2: 83 kg•m/s
5-3: 1.5 m/s
5-4: J N•s change in momentum of an object due to a force applied over time
5-5: 45 N•s
5-6: 6.4 m/s
5-7: equal in magnitude but opposite in direction
5-8: 1.2 m/s
5-9: ?
5-10: they'll both stop because their momenta were equal
6-1: 6.67 x 10-11 N• m2/kg
6-2: the greater the mass, the greater the force
6-3: changes with the square of distance
6-4: still X
6-5: 3.7 x 10-10N
7-1: W Joule energy required for movement
7-2: P Watt rate at which work is done
7-3: 1 N force moving an object 1 m; 1 Joule of work done in 1 second
7-4: more
7-5: 420 J
7-6: 320 J
7-7: 68 W
7-8: no work is done
8-1: potential energy: energy of position; kinetic energy: energy of motion
types of potential energy: gravitational, chemical, electric, spring; J
8-2: 3740 J
8-3: 250 J
8-4: equals; At the top of its swing, a pendulum's energy is all potential energy and as it swings, the potential energy converts to kinetic energy at it speeds up, bottom of swing is all kinetic energy
8-5: mechanical; internal, Q
8-6: not applicable
8-7: 930 J; gain 930 J
8-8: 11 m/s
8-9: Energy stored in a stretched spring or other elastic material; k describes how easily a spring is stretched.
8-10: 2 N/m
8-11: 4.7 N/m
8-12: 0.13 J
9-1: 23 m/s
9-2: 8.8 m/s
9-3: 0.90 s
9-4: 1.80 s; 41 m
9-5: 4.0 m
9-6: Both will land at the same time.
9-7: 4.9 s
9-8: 104 m
9-9: 38 m
9-10: Force that keeps objects moving in curved paths.
9-11: Fc. Object moves tangent to the circle.
9-12: towards the centre; inertia
9-13: 0.34 m/s2
9-14: 360 N
10-1: ion; equal to
10-2: positively; negatively; elementary
10-3: 1.6 x 10-19C; 6.25 x 1018
10-4: friction; repel; attract; attract
10-5: The leaves will repel because they are both charged -vely due to the electrons being repelled by the rod and migrating down the electroscope.
10-6: induction
10-7: ground; earth; electrons will move from the object to the ground
10-8: total charge of a system stays the same; -2 C
10-9: 2.1 x 10-3
10-10: 1/9 of what it was
10-11: 7.3 x 106 N
10-12: positive
10-13: Move away from the positive and towards the negative
10-14: 5.0 x 10-3 N/C
10-15: potential difference
10-16: volt; V; electron volt; eV
11-1: ampere; circle with an A in it; ammeter, series
11-2: 20 A
11-3: potential difference, voltage, voltmeter, parallel
11-4: refer to your notes
11-5: conductors; insulators
11-6: resistance; ohms; Ω
11-7: 10 A
11-8: decreases; increases; decreases, resistivity
11-9: 0.016 Ω
11-10: see your notes
11-11: 120 Ω
11-12: 0.10 A
11-13: 5 V
11-14: see your notes
11-15: 29 Ω
11-16: 0.41 A
11-17: 0.24 A
11-18: less
11-19: watt; W; volts; amperes
11-20: 1200 W
11-21: power; time; joule
11-22: 12 000 J
11-23: 5 A
11-24: less
12-1: magnetic; north; south; charged object; motion
12-2: repel; attract; south
12-3: field intensity; flux
12-4: north to south
12-5: lines go from north to south
12-6: lines go out from each north and repel each other
12-7: lines go into each south but repel each other
12-8: lines go from north to south
12-9: potential difference; current
12-10: greater
15-7: 6.9 x 1014 Hz; violet
15-8: spectra; bright line spectra
15-9: nucleons
15-10: 2.1 x 1017 J
15-11: strong nuclear, electromagnetic, weak nuclear, gravitational force
15-12: na
15-13: na
15-14: na
PRT-1: Coulomb's constant; 9 x 109 Nm2/C2
PRT-2: na
PRT-3: 1.67 x 10-27 kg; 1.67 x 10-18 mg
PRT-4: ma
PRT-5: 9.8 m/s2
PRT-6: 0.53; copper; steel
PRT-7: na
PRT-8: UV
PRT-9: na
PRT-10: current; voltage
PRT-11: electric field strength
PRT-12: silver
PRT-13: see your notes
PRT-14: period
PRT-15: energy; drops
PRT-16: ev; 1.6 x 10-19 J; Planck's constant
PRT-17: divide by two, then square it and multiply by pi
PRT-18: multiplying the sine of the angle by the initial velocity
PRT-19: vf2 = vi2 + 2ad
PRT-20: equals
PRT-21: impulse; time
PRT-22: internal energy
5-2: 83 kg•m/s
5-3: 1.5 m/s
5-4: J N•s change in momentum of an object due to a force applied over time
5-5: 45 N•s
5-6: 6.4 m/s
5-7: equal in magnitude but opposite in direction
5-8: 1.2 m/s
5-9: ?
5-10: they'll both stop because their momenta were equal
6-1: 6.67 x 10-11 N• m2/kg
6-2: the greater the mass, the greater the force
6-3: changes with the square of distance
6-4: still X
6-5: 3.7 x 10-10N
7-1: W Joule energy required for movement
7-2: P Watt rate at which work is done
7-3: 1 N force moving an object 1 m; 1 Joule of work done in 1 second
7-4: more
7-5: 420 J
7-6: 320 J
7-7: 68 W
7-8: no work is done
8-1: potential energy: energy of position; kinetic energy: energy of motion
types of potential energy: gravitational, chemical, electric, spring; J
8-2: 3740 J
8-3: 250 J
8-4: equals; At the top of its swing, a pendulum's energy is all potential energy and as it swings, the potential energy converts to kinetic energy at it speeds up, bottom of swing is all kinetic energy
8-5: mechanical; internal, Q
8-6: not applicable
8-7: 930 J; gain 930 J
8-8: 11 m/s
8-9: Energy stored in a stretched spring or other elastic material; k describes how easily a spring is stretched.
8-10: 2 N/m
8-11: 4.7 N/m
8-12: 0.13 J
9-1: 23 m/s
9-2: 8.8 m/s
9-3: 0.90 s
9-4: 1.80 s; 41 m
9-5: 4.0 m
9-6: Both will land at the same time.
9-7: 4.9 s
9-8: 104 m
9-9: 38 m
9-10: Force that keeps objects moving in curved paths.
9-11: Fc. Object moves tangent to the circle.
9-12: towards the centre; inertia
9-13: 0.34 m/s2
9-14: 360 N
10-1: ion; equal to
10-2: positively; negatively; elementary
10-3: 1.6 x 10-19C; 6.25 x 1018
10-4: friction; repel; attract; attract
10-5: The leaves will repel because they are both charged -vely due to the electrons being repelled by the rod and migrating down the electroscope.
10-6: induction
10-7: ground; earth; electrons will move from the object to the ground
10-8: total charge of a system stays the same; -2 C
10-9: 2.1 x 10-3
10-10: 1/9 of what it was
10-11: 7.3 x 106 N
10-12: positive
10-13: Move away from the positive and towards the negative
10-14: 5.0 x 10-3 N/C
10-15: potential difference
10-16: volt; V; electron volt; eV
11-1: ampere; circle with an A in it; ammeter, series
11-2: 20 A
11-3: potential difference, voltage, voltmeter, parallel
11-4: refer to your notes
11-5: conductors; insulators
11-6: resistance; ohms; Ω
11-7: 10 A
11-8: decreases; increases; decreases, resistivity
11-9: 0.016 Ω
11-10: see your notes
11-11: 120 Ω
11-12: 0.10 A
11-13: 5 V
11-14: see your notes
11-15: 29 Ω
11-16: 0.41 A
11-17: 0.24 A
11-18: less
11-19: watt; W; volts; amperes
11-20: 1200 W
11-21: power; time; joule
11-22: 12 000 J
11-23: 5 A
11-24: less
12-1: magnetic; north; south; charged object; motion
12-2: repel; attract; south
12-3: field intensity; flux
12-4: north to south
12-5: lines go from north to south
12-6: lines go out from each north and repel each other
12-7: lines go into each south but repel each other
12-8: lines go from north to south
12-9: potential difference; current
12-10: greater
15-7: 6.9 x 1014 Hz; violet
15-8: spectra; bright line spectra
15-9: nucleons
15-10: 2.1 x 1017 J
15-11: strong nuclear, electromagnetic, weak nuclear, gravitational force
15-12: na
15-13: na
15-14: na
PRT-1: Coulomb's constant; 9 x 109 Nm2/C2
PRT-2: na
PRT-3: 1.67 x 10-27 kg; 1.67 x 10-18 mg
PRT-4: ma
PRT-5: 9.8 m/s2
PRT-6: 0.53; copper; steel
PRT-7: na
PRT-8: UV
PRT-9: na
PRT-10: current; voltage
PRT-11: electric field strength
PRT-12: silver
PRT-13: see your notes
PRT-14: period
PRT-15: energy; drops
PRT-16: ev; 1.6 x 10-19 J; Planck's constant
PRT-17: divide by two, then square it and multiply by pi
PRT-18: multiplying the sine of the angle by the initial velocity
PRT-19: vf2 = vi2 + 2ad
PRT-20: equals
PRT-21: impulse; time
PRT-22: internal energy
Saturday, December 15, 2007
Thursday, Dec 13 and Friday, Dec 14
Well so far on Thursday we went over two sheets one of which, The cathode ray problems, has the solutions up on the bottom. After spending half of the class on that we continued onto our review for the test, which is also posted up on the bottom. Of course on Friday we had our electric and magnetic fields test, hope you guys did good on it cause i sure didn't xD.
Next is 1
Next is 1
Thursday, December 13, 2007
Subscribe to:
Posts (Atom)
