April 21

This class was all about correcting the test paper that Mr. Vincent had given us.

It was all about Refraction, Reflection Diffraction.

The multiple questions was not that difficult.
These answers are in order.
d,c,c,c,d,b,c,a,c,c,destructive interference, index of refraction, increase, wave ray, focal point.

Part B and part C was rather challenging for some people.

Here are the important labels in question number one. normal, incident wave front, incident wave ray, angle of incidence, barrier, refracted wave front, refracted wave ray, angle of refraction. What is happening is that the wave is coming from a shallow water to a deep water. In question number two, it was all about diffraction. As water waves enters an opening some will LAG behind when hit by the barrier. Two conditions which are required to maximize the phenomenon is the larger the wavelength the greater the diffraction and the opening should be smaller. Number three is where a parabolic reflector must be labelled.

Part C and D are calculations about Snell's Law and the interference pattern.




We are now in the sound unit.

Dwight already mentioned the definitions involved in this unit. The task is to READ PAGES 3 TO 10 IN THE PINK BOOKLET AND ANSWER PAGES 24, 25...... AND ON PAGE 26, ANSWER 1 TO 9. IF YOU HAVE SPARE TIME, FEEL FREE TO ANSWER PAGE 32. THE WORD SEARCH PUZZLE.



HOPE YOU GUYS HAD A GREAT WEEKEND. :)

Next scribe is VaNiLLa_iScream