Friday, November 30, 2007

Thursday's Scribe 29/11/07

today, we reviewed everything about kinematics..........ready for the test tomorrow guys.
oh yeah, we went over questions :
14 page 69..
37, 45, 48, 56 page 73-74
good luck!!!!!!!
scribe for Monday is Kim

Wednesday, November 28, 2007

Tuesday, November 27, 2007

Tuesday Scribe

In Today's Class, we went over the Acceleration sheets on the boards. The answers for those sheets were:

Acceleration
1. a = 6.25 m/s²
2. a = 9.76 m/s²
3. Vf = 35.5 m/s
4. t = 4.4 s
5. Vo = 107 m/s

Accelerated Motion 1

1. a) Vf = 15 m/s
b) d = 19m
2. a) Vf = 200m/s
b) d = 913m
3. a) a = 1.5 m/s
b) d = 116 m
4. d = 250 m
5. 5.6 m/s²

After correcting our answers, we read pages 19 - 22 in the Physics: Concepts and something... textbook and worked on questions 35 & 28 on page 33 -34.

The next scribe is Melissa.

Monday, November 26, 2007

11/25/07

Today, in class, we went over the sheet that was handed out on Thursday. The sheet dealt with distance-time, average velocity, and average acceleration graphs. We are now to work on the sheet labeled 4.1 guide and another sheet. To remind everyone, the 6 page sheet(Appendix 3.8) handed out on Wednesday is due. Also, the test on Kinematics is on Friday.


The next scribe will be Anh-Thi.

Sunday, November 25, 2007

Motion Graphs

MOTION GRAPHS
November 22, 2007 (Thursday)

We played with Ms. Kozoriz's graphs on her SmartBoard with her sensor. We learned how position-time graphs and velocity-time graphs worked, and how to read and obtain data from them. We forced our classmates to move away and closer to the sensor while the sensor records the data on graphs on the SmartBoard. Fun class.
---

3.2 NEW MEANINGS FOR OLD WORDS
Answer Key

Positive and Negative Velocities
1. positive
2. negative
3. positive
4. right
5. left
6. magnitude
7. positive
8. negative

Instantaneous Velocity
1. straight
2. tangent
3. slope

Velocity-Time Graphs
1. time
2. velocity
3. horizontal
4. parallel
5. positive
6. negative
7. vertical
8. displacement
9. position
10. position

Relativity of Velocity
Answers to these will be available later in physics.
---

Assignments/Notes

*Appendix 3.8 Motion: Interpreting Position-Time Graphs
*Fig.2.17 & Information in Kinematics Graphs
*Constant Velocity, Constant Acceleration, and Velocity-Time Graphs
*Chapter 4: Study Guide

Ms.K is aiming the Kinematics Test on Wednesday/Thursday.

NEXT SCRIBE: Thang N

Tuesday, November 20, 2007

Vectors

Well thank you so much Eddie for choosing me for scribe, since you tried to be mean and it backfired because we had a substitute,haha. But enough of fun and games our substitute was Mr.Kidd, who went over Study guide 4 (section 4.2:Components of Vectors), so I will supply you with the answers for anyone who didn't get them,
1) b. 90°
2) b. origin
3) c. quadrant 3
4) b. B
5) d. sinΘ=B(у)/B
6) c. cosΘ=D(x)/D
7)
c. C
8) b. FsinΘ
9) c. FcosΘ
10) c. E
11) c. R(x)= (-1.4 km) + 4.0 km + 1.5 km = 4.1 km
12) c. R(y)= (-3.8 km) + 6.9 km + (-1.3 km) = 1.8 km
13) a. R<>
14) c. Y=-R
Mr. Kidd was also nice enough to help us with our vectors assignment and went over all the questions and showed us how to do them! But I'm pretty sure that we'll go over them again with Ms. K when she returns. So I'll leave that for the next scribe which will be nounith1.

Monday, November 19, 2007

Vectors

Today in physics we received our Nature Of Light 2 test back so we can correct it. We also got a hand out sheet called 4 Study guide Properties of Vector. We corrected it about 20 minutes after anyways so you should have it but here it is for those who don't.

1. 6km E
2. 6km N
3. 6km NW
4. 4km S
5. 3km W
6. 5m SE
7. 40m SW
8. 6km E
9. 4m SE
10. 500m W

11. B 12. D

13. B F H
14. B F G I
15. B F

16. TRUE
17. FALSE
18. FALSE
19. TRUE
20. FALSE

Appendix 3.6 is due for those who didn't already hand it in.
Lauressa can scribe for tomorrow!

Vector Addition

Sunday, November 18, 2007

Kinematics

On Friday we went over the fill in the blanks sheet, Chapter 3 study guide. Here are the answers if you happened to miss any.

Position and Distance
-position
-frame of
-frame of
-magnitude
-scalar
-magnitude
-direction
-vector

Average Velocity
-instantaneous
-position
-vector
-displacement
-time
-v=Δd/Δt
-Δd
-distance
-Δt
-time
-distance
-time
-conversion

Finding Displacement from Velocity and Time
-Δd=(v)(Δt)
-v
-Δt
-time intervals
-uniform
-v=Δd/Δt

Position-Time Graphs
-position
-time
-straight
-linear

The Slope of a Position-Time Graph
-vertical
-horizontal
-vertical
-horizontal
-rise
-run
-velocity

Also, page 3.6 was to be done for Friday's class. If you didn't hand it in yet, please do so for Monday.

The next scribe is Edward!

Thursday, November 15, 2007

Today,in physic class, Ms K. let us read 4 pages of the whole booklet about Kinematics, she corrected the Kinematics-Frame of reference,and handed out the study guide to us . That's all we studied today.
Mary Ann will scribe tomorrow.

Tuesday, November 13, 2007

November 13 2007 post

hi there fellow classmates if you did not attend class or forgot what happened in class this is what we did.
We went over questions 17 to 20 in the pink booklet the answer are posted by Mrs K.
We did a review for the test tomorrow, Mrs k posted that too.
We also had to come up with eight question for the test and get other people to answer them, and that was due at the end of the class.
Well that was our class on tuesday november 13 2007

the next scribe for tomorrows class will be Cow Milk

Nature of Light Part 2 Review

Problems 17, 18, 19, 20

Monday, November 12, 2007

Nature of Light

So today we went over questions 13 through 16 in class today. The answers can be seen in today's slides.
If there's anyone wondering what the orignal questions are, they go as followed:

13)When a screen is illuminated by two closely spaced parallel, single-filament light sources, no interference is observed. What major condition for interference has not been satisfied?

14) If Young's experiment was done completely in glass, how would the interference pattern change from that observed in air, using the same equipment and experimental set-up?

15) A student is measuring the wavelength of light produced by a sodium vapour lamp. The light is directed through two slits with a separation of 0.15 mm. The interference pattern change screen 3.0 m away. The student found that the distance between the first and the eighth consecutive dark lines was 8.00 cm. What was the wavelength emitted by the sodium vapour lamp.

16) An interference pattern is formed on a screen when a helium-neon laser light (λ= 6.328 x 10^-7 m) is directed towards it through two slits. If the slits are 43 μm apart and the screen is 2.5 m away, what will be the separation of adjacent nodal lines?

I realize that having answers without the questions aren't very beneficial.

We also did some reading out loud today as we read about the "Photoelectric Effect and the Wave Particle Duality."
It was Albert Einstein who proposed the idea that light is made of photons.
The Photoelectric effect itself refers to the ejection of electrons from the surface of a metal when it is exposed to electromagnetic radition. *as defined by our pink booklet.
To study this we would use a photocell that has two metal electrodes sealed in an evacuated tube. The air is removed so in doesn't stop the electrons from moving. The large eletrode is a cathode and coated with cesium or another alkali metal. The second electrode is an anode that is made of thin wire so it doesn't block radiation. To allow ultraviolet wavelengths to pass through the tube, it is often made of quartz. A power source is thus connected to the anode and cathode so that the negative side of the source is attached to the cathode and the anode on its positive side. The ammeter can measure the current flowing through the circuit. When radiation does not fall on the cathode, there is no current flow in the circuit. The current is due to electrons called photoelectrons being ejected by the cathode due to radiation and are attracted to the anode. The ammeter in the circuit can thus measure the current flow.

That's the basis of what we learned today. Then we were assigned to finish the last questions from the pink booklet.
Remember: Test on Wednesday! Good luck everyone.
That is all. Good day.

Friday, November 9, 2007

Monday's Class:Newton's Refraction Lab

Sorry this is late, but this is for monday's class. On monday, we did a lab with marbles and a slope thing, which we used to test out the route the marble took on the slope and how it changed directions. We also got a white sheet that we had to finish, and it was about scientist and the speed of light.

That is all.

Wednesday, November 7, 2007

Friday, November 2, 2007

For today's Physics class, we started off by going over the "Chart for Evaluating the Models of Light". If you didnt get to correct all of them the answers were uploaded by Ms.K, so make sure you have the right answers. We also watched a litlle of the "Light and Color" movie and we were to write four things that we learned. Ms. K also handed out a pink booklet that says " The Nature of LIght:Part 2 The Wave and Particle Models of Light Problems". We were also asked to answer questions 1 and 3 from the booklet. That was pretty much it for todays class.
And the next blogger is.. KRISTINA (:

Particle (Corpuscular) Theory

Thursday, November 1, 2007

November 1, 2007

For today's physics class we had a substitute. We were asked to read pages 3-8 of the pink booklet and then we got a worksheet that went along with then content that we had just read. It was suppose to be handed in at the end of class, but most of us weren't finished so he told us to take it home to do for homework and then we can hand it in tomorrow instead. Well that's pretty much all we did today. Oh yeah and the next scribe is Christine D.