To SPM 2012 students

Due to some reason
L-pad 2.0 is already posted at my Facebook wall
Download for there

Tips as well
I will post on my Facebook only

Thanks

Answer for Form 4 students

Sorry for such a long delay

Answer for Perfection Students

KL Add Math Project

Answer for the revision

10) a)     Constructive interference is the superposition of two waves which are in phase to produce a resultant wave of maximum amplitude

b)i)      Distance between the two coherent sources for the diagram 10.1 is closer than the diagram 10.2

ii)       The vertical distance between point P and the respective coherent sources are the same for the diagram 10.1 and 10.2

iii)           The wavelength of the propagating water waves are the same for the diagram 10.1 and 10.2

iv)           The distance between two consecutive antinodes for the diagram 10.2 is closer than 10.1

c)                   The distance between the two coherent sources is inversely proportional to the distance between two consecutive antinodes

d)                  During the day, the temperature from the surrounding is higher. High temperature will increases the kinetic energy of the particles and the density of the air particles is decreased. Sound wave is a longitudinal wave which travels via vibration of the particles. When the particles rises, the sound wave is refracted away from the ground, as the result, the son could not hear his mother clearly

Modification	Explanation
Using the large size of the boat	High volume boat is able to increase the buoyant force for the boat
Using lower mass and weight material	To reduce the density of the boat
Using a strong material, not a rigid material	Strong material is able withstand the impact during the collision without crash
Sonar	Sonar is the best to use because it has a high frequency to propagate
Making a high specific heat capacity material box to store the fish	Heat insulator is used to maintains the low temperature of the fish storing

Add Math Project 2012 Question 1

Sorry for the delay
Here you go

2012 年

很多年前，每当听到 2012 年，想到的，就是“末日”。

2012 年真的会完吗？

我不懂，你懂吗？

当今人类被愈为最聪明的活人，我的偶像，Stephen Hawking 一书， The Brief History Of Time 提到宇宙的开始，而没有提到末日，那宇宙有末日的一天吗？

没人敢回答，因为没人知道。

朋友都爱问我，2012会末日吗？你觉得几时末日呢？

我答：“明天”

明天？为什么？你听谁说的？

我说：当你认为明天是末日，到了明天，那你对自己说“明天是末日”，到了后天，再对自己说，“明天是末日”，那你的明天永远是末日，那么你就会更加珍惜和爱今天，不要埋冤，开心的活了今天，那明天醒来就是赚了一天。

我的朋友和学生们，爱你们的今天，包括你今天遇到和看到的一切，一切。

我的今天是我人生就好的一天。

SPM 2011 Students

All the best
You have done a great jobs last year, now is the time to harvest
God will protect and bless you
May the force is be with you

Visit me when you are free....

Facebook

Due to extreme high request for a Facebook account
Finally i decided to start an account this year

Facebook : Loke Sky Walker
Email : lokeskywalker@ymail.com

Thanks