December 12, 2008

Class today was simple and easy. Walking into class and hearing that I'm the scribe however wasn't as fun as I thought. Anyways, in class we did the following :

1. Finished reading "Grade 12 Physics: Gravitational Potential Energy."
2. Was handed an assignment called "Cathode Ray" but was handed in for marks.
3. Also was handed a sheet called "Appendix 2 - Fields."

So anyways, I'll see you soon and I won the bet against Mrs. Kozoriz that we had. How I was going to "forget" to scribe.

Lawrence can scribe for Monday

November 20, 2008

Walking into class, having a great day so far. Lawrence gave me a wonderful present. To scribe for today, what a nice guy huh? (Sarcasm). Anyways, let's get going.

The first thing we did today was the GRAVITATIONAL FIELDS WORKSHEET handed to us by the substitute teacher we had on November 19, 2008. (Mrs. Karras)

Next we were handed back our Transparency Worksheet (10)
I got the answers right so here they are.

1. 2M, 2M has the greatest force.
2. 2F.
3. Equal.
4. M1, M2, 2D = 1/4 F.
5. F=1.40 x 10 ^- 8 N.
6. 1/9 F.
7. 3F.
8. 3/4.
9. Remains the same.

Near towards the end of the class, we were handed a "Gravitational Potential Energy" booklet. If you don't have this booklet, get it because some very useful formulas are found at the back of this booklet.

Using this booklet, we were given a assignment (not due or anything) to finish in class. It's called "Gravitational Potential Energy Questions." Sorry I can't really give out the answers due to me leaving my Physics stuff in my locker or I might have lost it, I wouldn't know. Let's end this post by saying the next scribe is Benchman who begged me in class to blog for the weekend.

October 1, 2008 Blog.

Double Scribed : Say thanks. ;P

Today in class we were given time to finish the lab previously assigned on the 30th of September. The lab was supposed to be handed in by the end of class. (By the way, the last question on the lab is confusing but if you think about the recoil it'll be alot easier).

We also corrected the questions in the "Duck Book".

50.
Jf = J1 + J2.
= (1/2 ( 100 N [G])) + [100N [E] (15s)]
= 250N + 1500 N
= 1750 N. [E]

b)
A= 1/2bh
= 1/2 (4.0x10^-2 s ) ( 15 N )
= 0.3 Ns.

c)
A=1/2bh
= 1/2(5)(-10)
= -25 Ns.

A2 = bh
= 12.5(-10)
= -125 Ns.

A3 = 1/2bh
= 1/2 (10)(-10)
= 1/2 (-100)
= - 50 Ns.

At = A1+A2+A3
= -200 Ns.

51.

(1/2 x - 90 x .03) + (120 x 0.2 ) + (1/2 x 75 x 0.4)
= 25.5 N.

Other than that? We were given extra assignments to help us get practice on the topic impulse and momentum.

Assignments / Homework :

1. IMPULSE AND MOMENTUM hand-out.
2. Complete "9 Study Guide."

That's pretty much it for the class besides me, Benchman and Lawrence having an arguement/discussion about the lab.

The next blogger like I said in the previous post I made will be chosen tomorrow.

September 30, 2008 Blog.

September 30 :

1. Corrected the first page of the "9 Study Guide".

Here are is the first page's answers :

1. B.
2. B.
3. B.
4. A.
5. D.
6. B.
7. D.
8. B.

Page 2 Answers (The back of the first page) :

9.
30 km/h right.
V = 0 m/s.
Impulse to the left.

10. V = 0 m/s.
V = 30 km/h.
Impulse to the right.

11. V = 0 m/s. (Backing up)
V2 = 5 m/s left.
Impulse to the left.

12. V = 5 km/h to the left.
V2 = 0 m/s.
Impulse to the right.

2. Completed a lab involving box carts and was due today.

The next blogger is : Anyone who wants to blog because I don't know who did or didn't.