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.
Showing posts with label justing. Show all posts
Showing posts with label justing. Show all posts
Thursday, May 26, 2011
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.
Tuesday, April 19, 2011
April 18 and 19, 2011
Yesterday we had our Waves in 2D test. It took the whole period so that was all for yesterday.
Today we talked about Sound. We watched a video with Paul Hewitt. Most of the beginning was review of what we already learned (parts of a wave, kinds of waves, how to find frequency/period, etc). The rest of the video was describing how CD's work in comparison to Records, how frequencies of Radio Waves operate, a man had this machine showing how sound waves are produced, and how someone who could invent a better windshield wiper could be rich.
After the video we got a lab that is due at the end of tomorrow's class. The lab was about sound and how to produce them. We used rulers (part of the ruler on the table with some hanging off, and plucking it), tuning forks (hitting them with a rubber hammer), and graduated cylinders (filled with water at different levels and blowing against the top).
The sound unit will go onto next week with a test on Thursday (from what I remember).
Sorry this is late (I forgot :D?)
Today we talked about Sound. We watched a video with Paul Hewitt. Most of the beginning was review of what we already learned (parts of a wave, kinds of waves, how to find frequency/period, etc). The rest of the video was describing how CD's work in comparison to Records, how frequencies of Radio Waves operate, a man had this machine showing how sound waves are produced, and how someone who could invent a better windshield wiper could be rich.
After the video we got a lab that is due at the end of tomorrow's class. The lab was about sound and how to produce them. We used rulers (part of the ruler on the table with some hanging off, and plucking it), tuning forks (hitting them with a rubber hammer), and graduated cylinders (filled with water at different levels and blowing against the top).
The sound unit will go onto next week with a test on Thursday (from what I remember).
Sorry this is late (I forgot :D?)
Wednesday, March 9, 2011
March 9, '11 - Dynamics - Vectors
Today we started off by correcting the lilac coloured sheet "Grade 11 Physics: Dynamics-Vectors". Remember that you have to include the direction or unit in the answer or you'll lose marks. Then we went over the backside of the page, and the practice questions are for homework and we'll go over them tomorrow.
1. A boat aims itself due east at 15km/h across a northern current of 5.0km/h. What is the boat's resulting velocity?
2. What is a ball's actual velocity if after 2 seconds in the air, it has a Vy = 20m/s up and Vx = 10m/s?
3. What is a kite surfer's velocity if the waves are moving him East at 1.5m/s and the wind is blowing him North at 4m/s?
After we corrected questions 1-5 on Newton's Second Law (page 43) of the Dynamics booklet, and if you haven't finished questions 6-9 have them done for tomorrow. Then Ms K assigned pages 12 (Net Force) and 33 (Transparency 4-4 Weight and Normal Force) in the Dynamics booklet to be done for tomorrow as well.
If you need a protractor you can buy one from Ms K for $1. And don't forget the test on Friday!
BryanC to scribe next
1. A boat aims itself due east at 15km/h across a northern current of 5.0km/h. What is the boat's resulting velocity?
2. What is a ball's actual velocity if after 2 seconds in the air, it has a Vy = 20m/s up and Vx = 10m/s?
3. What is a kite surfer's velocity if the waves are moving him East at 1.5m/s and the wind is blowing him North at 4m/s?
After we corrected questions 1-5 on Newton's Second Law (page 43) of the Dynamics booklet, and if you haven't finished questions 6-9 have them done for tomorrow. Then Ms K assigned pages 12 (Net Force) and 33 (Transparency 4-4 Weight and Normal Force) in the Dynamics booklet to be done for tomorrow as well.
If you need a protractor you can buy one from Ms K for $1. And don't forget the test on Friday!
BryanC to scribe next
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