This blog is for grade 11 students who are studying physics. It is intended to provide a forum for students to discuss, debate and question the topics we cover this semester.
Thursday, June 16, 2011
wednesday, june 15th
Wednesday, June 15, 2011
June 14 2011
PAR will scribe next ..... dont forget to study for the exam!! :D
Saturday, June 11, 2011
Corpuscular Theory, Wave Theory & Determining the Speed of Light
Next, we were given two worksheets "Appendix 2.4: Chart for Evaluating the Models of Light" one of which was yellow and the other pink. The yellow sheet should have the model as "Corpuscular Theory" or "Particle Theory" if you do not like using the word corpuscular and the pink sheet should have the model as "Wave Theory." We went through the supporting arguments and counter-arguments for each phenomena for the Corpuscular Theory, which you can also find the answers within the salmon book. We were then given 15 minutes to finish the pink sheet and find the supporting arguments and counter-arguments for each phenomena in the Wave Theory. We also corrected this. (All answers are found in the book if you read pages 3-18 the previous day!)
The next worksheet handed out was "BLM 2.10: Contributions to the Determination of the Speed of Light" which should be handed in on Tuesday, the latest. The worksheet is straight forward and you can find the answers to the boxes on pages 9 and 10.
That was all for today. Have a great weekend everyone! Don't forget to get started on your exam review..the exam is in SIX days!! Friday, June 17th 2011 at 9AM sharp!
The next scribe will be Jaksen
Thursday, June 9, 2011
June 9 2011
it back in to get a bonus mark. The class was used as a work period
and Ms. K assigned pages 3-18 of the pink booklet to read and
complete questions 1,3,4,9,10, 11, and 12. See everyone tomorrow!
Next scribe shall be Pink!
8 more days till the physics exam!
Monday, June 6, 2011
June 6, 2011
All we did for today’s class is answered the Review Problemzz on the Board!
Review Problem Answer Key!
1. Opposite attract likes repel
2. 2. Magnet polarizes the object & attracts the electrons of the object
3. - Temporary magnet
- Nail paperclip
- Tiny loops of current within the substance
4. Domain are no longer aligned
5. It unaligns the magnetic domain weakening the strength of the magnet
. . . . . .
6. S-----------------------N
x x x x x x
7. -Aluminum
-Cobalt
-Nickel
8. You cannot isolate them; because the magnetic domains only flow in are directions. This means the domains would remain uncharged even after breaking it in half.
9. To determine the polarity by using the second right hand rule, curl your finger around the loops in the direction of the conventional current, thumb points toward the North Pole of the magnet.
10. Thumbs à Flow of current
Finger à Magnetic field
Palm à direction of force on wire
11. South Pole, because the north of a magnet is attracted to the magnetic South
12. Magnetic declination is the given location between the magnetic North & Geographic South. Also called the angle of declination.
13. An electric Field surrounds a stationary electric charge.
A magnetic field surrounds a moving electric charges as well as an electric field.
14. B = Fb/IL
0.20/0.10*5 = 0.40T
15. F=BI
= (115min)(5.0x10^-5)
= (4.00x10^-2)
= 2.3N
16. FB = ILB
0.040 = (2.0)(0.1) B
B= -20T
17. Magnetic Field = Fb/IL
Fb=BIL = 0.900T x 8.00A x 0.500m = 3.60N
For does PPL who did not show up to Mrs. K class and don’t understand how we got this answers, talk to Mrs. K before the third Period end. Have a nice half day 2morrow. Better to review Magnetism and Electromagnetism 2morrow because Wednesday we have a test for this unit.
Saturday, June 4, 2011
Friday, June 3rd/2011 Magnetism and Electromagnetism V
Thursday, June 2, 2011
Wednesday, June 2nd/2011 Magnetism and Electromagnetism IV
The next scribe will be whoever wants to be the next scribe.