Friday's Class September 28

Hello fellow bloggers,

Sorry for being a couple days late as I had computer problems, but alas here I am with Fridays blog.

We started off class correcting questions 9-14 in the green booklet which was due Friday. If you missed them here they are:

9. Station A
10.200 meters
11.294 Hz
12.Orange
13 a.Red
13 b.Red
14. 400 meters

We also corrected the worksheet Refraction pg.31 up to question 4. Again if you were not at class, Ms. K has uploaded the answers to the blog. After that we received a worksheet called Interference Exercises and read pages 16-18 in the green booklet on interference.

And lastly we received a review for the upcoming test on Wednesday. (not 100% sure on the date) So remember to study hard and prepare for it. Also remember to ask any questions you have in class.

The next scribe will be...
Yonas

Refraction Worksheet

Refraction and Diffraction

Diffraction occurs when waves that are travelling in a straight line, change their direction by hitting another object. The wavefronts are bent around the object. The direction of a motion of the wavefront and indicate the wave ray drawn and the right angle. Refraction we will use in rays. When a wave travel in from one depth of water to another, there is a in change direction, and the refracted wave ray is bent (refracted) towards normal. The angle of incidence is shown between the normal and the incident wave ray.

And the work that we did today was correcting the Exercise of Refraction and the Refraction and in class time we did the Transparency worksheet.Next scribe is Lee

The Bending of Light Lab

Hey folks, its James here apparently I'm the class scribe for today. We'll jump right into it by saying today was a simple class. All day we worked on a lab on the bending of light (Pg.352 physics textbook), amazing isn't it. The lab itself was fairly straight forward, dealing with how light bends through water. Aside from the lab we didn't do much in the way of work, however we were given back our waves in two dimension assignment sheets.

The next scribe is...Nguyen

Reflection and Refraction

Today's class, we quickly went over the answers on our assignment nos. 5-8 on the 2nd green booklet. Then we spent almost all of our time watching the video of Reflection and Refraction. Ms. K gave us white sheet to answer while watching and went over it after watching.


Here are the answers for 5-8 on the green booklet:


5. λshallow= 1.1 cm


6. a. n= 1.33


b. Vdeep = 4 cm Vshallow = 3 cm


c. = 22°


7. angle of refraction= 36.9°


8. Vr = 5.6 km/s




...and for the answers on the white sheet of Reflection and refraction, just click the links below:


Waves in 2D: RnR

Waves in 2D: RnR2


tomorrow, tuesday Sept.25, is the due date for the Waves Research Project. Don't forget to hand it in.

the next scribe is.....Jamesa-

Snell's law

Oops, the bunny has disappeared, so I'll blog for today's class. Everyone needed to hand in Waves in 2D assignment 1. We covered the math for Snell's law and saw how the law was derived. The ratio of the wavelengths, speeds, and sines can give the value for the index of refraction, n. This value is just a ratio which means it doesn't have any units. The index of refraction, n, is specific for each type of material (water, glass).

The assignment for the weekend is to complete problems 5-8 at the end of the green booklet. If you're thinking you should realize that question #6 is a repeat of the question we did on the whiteboard.
Remember your 1 page assignment is due on Tuesday. Have a great weekend.
Oh yeah, the scribe for Monday will be
Jessica

Class of September 20, 2007.

Eyooo! It's Francis! Today in class we got our drawing rays exercise back along with our Waves in One Dimension Test which we corrected. After that we watched a video about waves and how they reflect off different barriers, it was quite interesting especially with all the funky shapes it made while getting reflected. We also went over pages 9, 10 and 11 in our green "Waves in Two Dimensions" booklet. So if you're stuck just check out those pages, its pretty much all we learned this class. That's my piece!
If I missed anything be sure to point it out.
I believe the next scribe will be bunny. Yuuup, it's bunny.

Physics Class - September 19, 2007.

Hello, my name is Tony and I am apart of your Physics class. I will be scribing for today.

Mrs. Kozoriz looked over and corrected the sheet in which we had to draw the wave ray's, and way front's. In prior to that, we read page 7 within the green booklet. (Grade 11 Physic Waves in Two Dimensions). Not much was done today.

Today in class, Mrs. Kozoriz handed out the following sheets :

1. Reflection of Circular Waves from a Straight Barrier.
2. Waves in Two Dimensions - Assignment 1.

Our homework is to complete the sheet Waves in Two Dimensions - Assignment 1 because it's due the following day.

The next scribe will be Francis.

The End of Waves in One Dimension

Alright, sorry about being so late, I'm in a bit of a bind with my computer situation at the moment, as in, I dont have one -_-; But yeah, here's that blog I owed you!

So, basically we corrected that assignement we were supposed to do (This was Monday) those being, the rest of the end of the wokbooklet (Questions 6-14) Ms. Kozoriz. To know you've got the right questions going on, make sure it's Waves in 1D (one dimesion). So if you need to check your answers to the questions, feel free to scroll down to the lovely Ms K.'s slideshow, and have a click around, and it's our time spent on the smartboard that day, figuring this stuff out.

Besides that, all the really happened is we prepared for the test, which occured on tuesday. Now that we're finished with Waves in 1Dimension, it's on to Waves in, yup, you guessed it, TWO dimensions. I'll hand it off to Mr. Lawrence for the honours of blogging about that lesson.

Oh, also, if I forgot anything that we did in this post (as I can be somewhat forgetful) lemme know, and I'll add it in asap.

Waves in 2D

Yeao!!! Lawrence here signing in. Sorry about it being so late but I had a football game and some other things going on within the family plus I had homework so yeah. Thanks for being so considerate Justus ¬__¬''

ANYWAYS, We started off class with a lovely test. Isn't that just dandy.

Then, we received a second booklet entitled: " Waves in Two Dimensions'' and we practically looked at circular waves, which can be generated on the surface of a liquid by a point source such as a drop of water, or a drop of any kind of object for example, your finger. Also, we learned that if a crest or trough is continuous, it's referred to as a wavefront. To show how the wave is traveling, we just simply create an arrow at right angles to the wavefront, in which this line is called the wave ray.

*Pictures can be located in your booklets on the back of the first page.*

Next, we looked at reflections. To put it simply, the wave ray is bounced back at exactly the same angle it hit the barrier, so if it hits the barrier straight on, it'll reflect straight back, thus, if it hits a barrier at a forty-five degree angle, it'll bounce off the barrier at a forty-five degree angle, in which we can presume the angle of incidence is equal to the angle of reflection.

*Angle of Incidence is the angle between the incident wavefront and the barrier while the angle of reflection is the angle between the reflected wavefront and the barrier.*

It'll look a little something like this :

I think that about does it, and I know its late but just to let you know, we have that paper due next Tuesday as well as homework.

Also, the Next scribe shall be...

...
...
...
Vieteran... Whatever that means...
*cough* Tony *cough*

I say Good day. Ciao

Problems 6- 14

"Chapter 14?! Wow you guys are fast!"

Title quoted from Mr. Substitute teacher that we had today. I must say he's one of the best substitutes I've had in a long time. Very interesting indeed.

Anyway... HELLO! I'm Jadanet, I couldn't scribe yesterday because I had work afterschool, and wouldn't be able to access a computer until after 10. So here I am today! It's late right now too.. but that's okay because it's the weekend :D

So today what we did in class was a CHAPTER 14 Study Guide booklet. Okay... really it was 3 pages, not a booklet persay.. :) It consisted of a brief summary about all the waves and things related to it that we've been covering for the past week. In the format of "fill in the blanks", we used textbooks to aid us. That took a majority of the class period and at the end of it we went over the answers.

Here are the answers if you couldn't catch them:
1) TYPES OF WAVES
- mechanical, material, electromagnetic, no, particles, matter, 3, perpendicular, motion, parallel, motion, surface, parallel, perpendicular, single, continuous, vibrating, harmonic.

2) THE MEASURES OF A WAVE: FREQUENCY, WAVELENGTH AND VELOCITY
- shortest, motion, cycles, second, hertz, hz, hz, f= 1/T, T, f, wavelength, lamda(λ), high, low, v=λ·f

3) AMPLITUDE OF A WAVE
- maximum, equilibrium, energy.

4) WAVES AT BOUNDARIES BETWEEN MEDIA
- amplitude, frequency, property, equal, equal, incident, transmitted, energy, reflected, most, little, inverted, erect, frequency, amplitude, speed.

5) SUPERPOSITION OF WAVES
- independently, displacement, sum, displacement, superposition, same, greater, shape, size, opposite, zero, destructive interference.

6) STANDING WAVES
- undisturbed, destructive, displacement, constructive, standing, stationary, standing still.

And that's all we did and covered! I'm guessing we'll be going over reflection, refraction, diffraction and interference of waves on Monday. So study hardy for the test on Tuesday!

Scribe on Monday will be "Hi I'm Justus"! :)

Waves

September 13, 22007

Hi im Stephanie and Jadanet was suppsoe to be todays scribe but she couldn't do it so I am going to fill in for her so that makes me 2nd periods scribe for today and tomorrow Jadanet is scribe.

Today in class we corrected the Vocabulary review.
Here are the answers if you missed it:
1 .Standing wave
2. Period
3. Destructive Interference
4. Node
5. Amplitude
6. Normal
7. Principle of Superposition
8. Transverse wave
9. Antinode
10. Frequency
11. Interference
12. Wave length
13. Angle of incidence
14. Surface wave
15. Constructive interference
16. Trough
17. Diffraction
18. Angle of Reflection
19. Longitudinal wave
20. Wave Pules
21. Refraction
22. Traveling wave
23. Crest
24. Law of Reflection

Then we watched a short video on standing waves.
(diagrams under section D, E, F, G, & H)

After that we looked over the rest of the green booklet.
Sections:
D. Reflection
E. Wave Transmission in Two Media
F. wave transmission and Partial Reflection in Two Media
G. Wave Interference and the Principle of Superposition
H. Constructive and Destructive Interfernce
I. Standing waves: The formation of a nodes
J. Standing Wave patter: Constructive and Destructive Interfernce.

After that we corrected Wave Problems 1-5

Homework: Wave Problems 6-14

Test on Tuesday! Have fun studying!

Waves

Today's class started off by watching a short video on waves. Then we corrected the Waves on a Snakey worksheet and worked on the Wave Properties worksheet. We also got back our Lab Worksheet on The Paper Tower experiment. Lastly, we worked on the Vocabulary Review sheet. Don't forget we might be writing our first test sometime early next week.

Next to scribe is Jadanet.

18 Wave Properties Transparency

Waves On Snaky

Hey this is Shelly and I'm the scribe for the day. In class we have gone through the questions in "Concepts-Development Practice Page Chapter 25: Vibrations and Waves", or work sheet 25-1 for short. For those who have missed this class here are the correct answers:

1) a. Wavelength = 6.7 cm
b. Amplitude = 1.5 cm
2) Frequency = 0.5 hertz
Period = 2 seconds
3) Statement 1: The period of a 440-hertz sound wave is 0.0023 second
Statement 2: A marine weather station reports waves along the shore that are 8 seconds apart. The frequency of the wave is therefore 0.125 hertz.
4) a. Frequency = 600Hz
b. Wavelength = 0.57m
5) a. Distance = 30m
b. The distance decreases
6) a. Wavelength = 30cm
b. The wavelength decreases
7) Speed = 2m/s
Period = 0.5s
8) Speed = 3m/s
Period = 0.5s
9) Automobile moves towards the listener, the sound of its horn = high pitched
Automobile moves away from the listener the sound of its horn = low pitched
10) Wave frequency

Then we Ms. K got the class (whats left of it) in groups of 3 and assign a lab about the transverse waves and the longitudinal waves that involves the slinky, and in tomorrow 's class we'll continue to work on the lab.

HOMEWORK: Wave Problems: questions 1 -5 page 12 in the handout (Grade 11 Physics: Waves in One Dimension)

Tomorrows scribe will be....... Jenny!

Wave Velocity & Longitudinal Waves

HI this is AznFlame and I'm the scribe for today. Today we started off by correcting the rest of the Period & Frequency Problems worksheet we did in class on Friday. Then we read Parts B & C of the green booklet, were given a formula sheet, and talked a bit about wave velocity & longitudinal waves which produce sound. After that we got 2 worksheets to do for homework which are characteristics of waves: physics 30S, and Concept-Development Practice Page.

Next scribe is Shelly

Types of Waves

Continuous or Periodic transverse waves

Hello my fellow physics classmates ,
My name is Mark and i am the scribe for last Friday's class. We started off by looking at how waves are formed and some key terms ( the key terms can be found on the first page of the handout). Then after that we looked at the anatomy of a wave which can also be seen HERE. Then lastly we looked at the formulas on how to find frequency and period and worked on some of the questions from the handout.

Do not forget that our homework for this weekend is just to e-mail Ms. Kozoriz.


The next scribe will be .............. Aznflame.

Scribe List

This is The Scribe List. Every possible scribe in our class is listed here. This list will be updated every day. If you see someone's name crossed off on this list then you CANNOT choose them as the scribe for the next class.

This post can be quickly accessed from the [Links] list over there on the right hand sidebar. Check here before you choose a scribe for tomorrow's class when it is your turn to do so.

Hi I'm Justus mike Nguyen sonson Vieteran Jenny mh6nzm jadanet Shelly

AznFlame Francis Jessica emman adriana Melissa Rence

stePhanie roxee yonas m@rk Pr1nce Awot crystal Lee

Waves Introduction