Sunday, June 24, 2007
Of Mirrors, Waves, and Illusions....
Remember: Passing is ALWAYS 85%!! SO Do your best! Fight! Review!
The project was given last Friday. "Life of a Mirror" music video. Cool...
Wednesday, June 20, 2007
Today is My Lucky Day
I understood the lesson (finally!) AND got a perfect score on the quiz (5 out of 5, a personal record). The lesson was about the Law of Reflection. It was so fun...
I'm looking forward to tomorrow!
Friday, June 15, 2007
Second Week Completed, Please Move to the Next
Three topics in one week... No wonder I---ahahahaah.....
SOHCAHTOA. A lot more easier now, after I reset my scientific calculator twice. I kept getting different answers from the others. I even asked asked someone else to doit on my calculator. Darn... Lost points...
Vectors. I was finally able to understand it after getting zeros in two quizzes. Ahaha.... Here's gow to do it:
A. Graphical Method
1.Determine the scale and frame that you are going to use. The frame is optional but it makes work a bit easier (for me, at least).
2. From the point of origin, draw the first vector. From the head of the first vector, draw the second vector. From the head of the second vector, draw the third vector. So on, so forth... Just make sure that the vectors are connected in a head-to-tail manner.
3. From the point of origin, draw aline to the head of the last vector drawn. This is the resultant vector.
4. To get the direction, use a protractor. To get the magnitude, measure the length of the resultant vector then convert using the scale you chose.
Will be posting the Component method soon. It's a lot easier than graphical. Just... alittle bit harder to put into words....
Saturday, June 9, 2007
Firsts
SOH CAH TOA. I only managed to understood the lesson after being explained about five times by my classmate. Somehow, I forgot to edit my assignment. The next lesson was about using the graphic method to get the resultant vector which is more complicated than it looks. I'll stop here because I still need to stare and understand how it's supposed to happen.