Today in class we have read pages 20-23 on Electromagnetism. We learned that an electric current can create a magnetic force that would be perpendicular to the electric current. We learned that the strength of a magnetic field is proportional to the current when the wire is straight. We learned how to find the direction of the magnetic field on a straight wire, when given the currents direction, by using the first right-hand rule. We also learned how to work with wires that are wrapped in loops (solenoid), by using the second right-hand rule. We were given
electromagnetism assignments to finish and tomorrow we will work on the physics lab worksheet we have, in class!
The next scribe will be Ahmed!
Monday, May 30, 2011
Thursday, May 26, 2011
May 25, 2011
Today in class we got a new booklet called Grade 11 Physics Fields: Magnetism and Electromagnetism. We started off the book with a lab.
The lab was about drawing magnetic field lines using 2 magnets and a compass. Both arrows on the compass are magnetized to point to the North/South Poles on Earth. The 2 magnets both have a North/South end on them, and are opposite in charge. We laid the magnets horizontally from each other, both North ends of the compass facing North, and placed the compass in between them and began moving the compass to see where the arrows point to draw the field lines. Next we flipped one of the magnets so both North ends where facing each other and drew the field lines from there.
When we finished the lab, we had to read and do page 26, which was a study guide.
The lab was about drawing magnetic field lines using 2 magnets and a compass. Both arrows on the compass are magnetized to point to the North/South Poles on Earth. The 2 magnets both have a North/South end on them, and are opposite in charge. We laid the magnets horizontally from each other, both North ends of the compass facing North, and placed the compass in between them and began moving the compass to see where the arrows point to draw the field lines. Next we flipped one of the magnets so both North ends where facing each other and drew the field lines from there.
When we finished the lab, we had to read and do page 26, which was a study guide.
Friday, May 20, 2011
May 19, 2011
Sorry this is a day late, I totally forgot about this yesterday.
Not like anyone missed anything anyways since we were all in class, but in case anyone forgot, we went over pages 23 - 28 and got the answers. Then we looked at Millikan's experiment and watched a short clip of that. For homework we had to do pages 29 - 34, but we corrected it today in class.. so this is a pretty pointless scribe.. ANYWAYS
Have a good weekend guys (:
Not like anyone missed anything anyways since we were all in class, but in case anyone forgot, we went over pages 23 - 28 and got the answers. Then we looked at Millikan's experiment and watched a short clip of that. For homework we had to do pages 29 - 34, but we corrected it today in class.. so this is a pretty pointless scribe.. ANYWAYS
Have a good weekend guys (:
May 20, 2011
Today we just corrected page 29, 32, and 34 and everyone was here today so i was told not to put the answers up, then after we just studied for the test on tuesday! The test is on the green and ivory booklets and Ms kozoriz said all you need to know is whats in the booklets.
* Make sure you study for the test on TUESDAY MAY 23!
- The test is on the green and ivory booklets.
thats everything have a good long weekend :)
* Make sure you study for the test on TUESDAY MAY 23!
- The test is on the green and ivory booklets.
thats everything have a good long weekend :)
Tuesday, May 17, 2011
May 17, 2011
Today we got our new booklet, " Grade 11 Physics Electric Fields" and read pages 1 -10 roughly in class. And we did our first lab for this unit on page 22.
Homework:
Page 23, 24 and 25
Homework:
Page 23, 24 and 25
May 11, 2011
So on wednesday we first corrected page 39 # 1-7
ANSWERS:
1. a=0.29m/s2
2. m=5kg
3. F=22222N
4. F= 144.56N
5. a=-0.53m/s2
6. w= 666.4N
7. g=9m/s2
Then we read pages 18-22 and did the questions on page 23, 27-28 and 29-30. Sorry it was late, it wouldn't let me post anything. That's everything:)
ANSWERS:
1. a=0.29m/s2
2. m=5kg
3. F=22222N
4. F= 144.56N
5. a=-0.53m/s2
6. w= 666.4N
7. g=9m/s2
Then we read pages 18-22 and did the questions on page 23, 27-28 and 29-30. Sorry it was late, it wouldn't let me post anything. That's everything:)
Monday, May 16, 2011
Covering Thursday, Friday & Monday. May 12/13/16
Salutations.
I apologize for the late scribe. Blogger was down on Thursday/Friday, and after that I myself had personal difficulties with the site. Nonetheless, I've finally succeeded.
I apologize for the late scribe. Blogger was down on Thursday/Friday, and after that I myself had personal difficulties with the site. Nonetheless, I've finally succeeded.
Anywho, to recap Thursday which probably is of no relevance anymore to you folks, we completed the lab. It included the usage of bricks, string, different papers (different friction), and a cart. We tested the force required to pull the bricks on each type of paper, constant speeds at different velocities, rolling a cart or sliding, and while adding even more bricks. Although there's not much left to say, there were a few tiny observations I had made:
Moving on to Friday, it was more of a catch-up day. We were assigned the questions on the following page of the lab, which included a few thinking questions and a graph. The graph was relatively easy, and I'm sure by now most of you know how to do one. The only question I can recall was the one asking when friction is used to our advantage or is simply a hindrance. Simple answers like creating fire (advantage) and moving heavy objects (disadvantage) did the trick. We were then assigned the last few questions of the booklet, and pages "5-2" and "5-3", about kinetic friction and static friction.
Finally, today. In the beginning of class we went over all of the questions assigned to us. Since we were to hand in our booklets, which I hope most of you did, I can't recall many of the questions. We went over finding the kinetic/static frictional forces, as well as relationships between the two. For the last half the class, we were to read a few pages in the green textbook and answer questions. I again did not jot those numbers down, but most if not all of us do not have a green booklet at home anyway. We will be receiving new booklets tomorrow in class. Don't fear!
Again I apologize for the late scribe, but that's all that's happened in the last 3 days of class. If I had my booklet still, I would have been able to go over more questions but those were all I could recall. I encourage you to argue with me if i'm incorrect with any of the above information.
Good Night!
- First of all after completing all tasks, it turns out our meter used to measure the forces were completely off. I know it's too late to go back and check, but the meters we used were off by 1 or 2 Newtons, which are very critical and introduce much more error in the final results. Yes, we did everything over again.
- The relationship between the amount of bricks and force used to pull these bricks were directly proportional in our results. With that being said, as the amount of bricks placed on top were increased, force required to pull these bricks were increased. We had a result something along the lines of 5N, 10N, 15N, so on and so forth in increments of 5 Newtons.
Moving on to Friday, it was more of a catch-up day. We were assigned the questions on the following page of the lab, which included a few thinking questions and a graph. The graph was relatively easy, and I'm sure by now most of you know how to do one. The only question I can recall was the one asking when friction is used to our advantage or is simply a hindrance. Simple answers like creating fire (advantage) and moving heavy objects (disadvantage) did the trick. We were then assigned the last few questions of the booklet, and pages "5-2" and "5-3", about kinetic friction and static friction.
Finally, today. In the beginning of class we went over all of the questions assigned to us. Since we were to hand in our booklets, which I hope most of you did, I can't recall many of the questions. We went over finding the kinetic/static frictional forces, as well as relationships between the two. For the last half the class, we were to read a few pages in the green textbook and answer questions. I again did not jot those numbers down, but most if not all of us do not have a green booklet at home anyway. We will be receiving new booklets tomorrow in class. Don't fear!
Again I apologize for the late scribe, but that's all that's happened in the last 3 days of class. If I had my booklet still, I would have been able to go over more questions but those were all I could recall. I encourage you to argue with me if i'm incorrect with any of the above information.
Good Night!
Tuesday, May 10, 2011
May 10, 2011
So for today we corrected our homework from yesterday which was pages 32, and 34. We also did two in class assignments on page 24-25 "Free Fall on the Moon", and the other one is on page 39 "Review Problems". If you haven't finished the two in class assignments you should finish them tonight because I believe that they might be due tomorrow. :)
Homework for today:
Page 24-25 "Freefall on the Moon"
Page 39 "Review Problems"
Page 32 Answers:
1) a. 19.6m/s b. 58.8m/s
2) a.19.6m b. 176.4m
3)
4) a. 4.9m b. 19.6m c. 44.1m
5)13790N [up]
6)6.8m/s(sqaured)
7)4.7m/s(sqaured)
9)0.6m/s(sqaured)
Page 34 Answers:
a. 10
b. 6
c. 0
d. -2
e. -10
f. 0
1) most
2) a,b
3) d,e
4) still downward
5) c, f
6) c, f
7) c
8)greater
Homework for today:
Page 24-25 "Freefall on the Moon"
Page 39 "Review Problems"
Page 32 Answers:
1) a. 19.6m/s b. 58.8m/s
2) a.19.6m b. 176.4m
3)
4) a. 4.9m b. 19.6m c. 44.1m
5)13790N [up]
6)6.8m/s(sqaured)
7)4.7m/s(sqaured)
9)0.6m/s(sqaured)
Page 34 Answers:
a. 10
b. 6
c. 0
d. -2
e. -10
f. 0
1) most
2) a,b
3) d,e
4) still downward
5) c, f
6) c, f
7) c
8)greater
Monday, May 9, 2011
May 6 and May 9 '11
May 6 '11
Last Friday we got a lab to try and determine the force of the gravitational field strength. We had a little weight that had about 0.1 kg of mass that was attached to a string of varying length and had it swing from the same height letting it go back and for 20 times. Then we recorded the data onto the graph and answered the questions on the back. (I think this was all we did.)
May 9 '11
Today we added information to pictures on page 26 of our green booklet to describe whats happening to a weight attached to a spring scale (for the elevator worksheet). The first scale is at rest (the elevator isn't moving, moving at a constant speed), with the next scale reading more newtons on it making it have more weight (elevator just starting moving up, slowing to a stop going down), with the last scale having less newtons acting on it making it weight less (elevator slowing going up, just starting going down).
Next we went to page 32 and answered question 8. The answers being:
A) 490N
B) 490N
C) 380N
D)355N
E)490N
F)490N
You can try and use the equation m = Fg/g to figure it out.
After we read pages 16 & 17 then did the problems on page 32 & 34. We also had roughly 20 minutes to finish the lab we got on Friday.
The next scribe will be Food.
Last Friday we got a lab to try and determine the force of the gravitational field strength. We had a little weight that had about 0.1 kg of mass that was attached to a string of varying length and had it swing from the same height letting it go back and for 20 times. Then we recorded the data onto the graph and answered the questions on the back. (I think this was all we did.)
May 9 '11
Today we added information to pictures on page 26 of our green booklet to describe whats happening to a weight attached to a spring scale (for the elevator worksheet). The first scale is at rest (the elevator isn't moving, moving at a constant speed), with the next scale reading more newtons on it making it have more weight (elevator just starting moving up, slowing to a stop going down), with the last scale having less newtons acting on it making it weight less (elevator slowing going up, just starting going down).
Next we went to page 32 and answered question 8. The answers being:
A) 490N
B) 490N
C) 380N
D)355N
E)490N
F)490N
You can try and use the equation m = Fg/g to figure it out.
After we read pages 16 & 17 then did the problems on page 32 & 34. We also had roughly 20 minutes to finish the lab we got on Friday.
The next scribe will be Food.
Thursday, May 5, 2011
May 5th, 2011
Hi everyone, I am scribing for today.
What we did today was just finishing the lab we started yesterday. Then we checked the answers on P.8-10 in the booklet. At last, the substitute teacher assigned the homework which is read P.12-13 and finish P.14-15.
Justin would be the next person to scribe.
Kevin
May 4, 2011
Sorry guys, I'm posting this one day late.
What we did:
We read pages, 3-6 in the green booklet titled "Physics 11 Fields Gravitational Fields"
- Learned about the gravitational field, gravitational force and weight, and apparently weightlessness.
After that we did a lab on the forces involved with elevators, using a scale and a 1000g weight as an example.
That's all we did on that day, so if you missed it you can easily catch up!
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