Wave Motion

-Waves are energy carriers.

-Energy can be transferred from one place to another by progressive or travelling waves.

-Waves that do not appear to move are called stationary or standing waves.

-There are two types of waves.

(a)Mechanical waves

-Waves transmitted through medium by particle vibrations.

(Example: Sound waves)

(b)Electromagnetic waves

-Waves transmitted through electromagnetic fields by oscillations of electric field and magnetic field.

(Example: Light)

Understanding Gas Pressure and Atmospheric Pressure

Gas Pressure

-Gas particles in a container are in continuous random motion.

-They collide with the walls of the container and bounce back.

-The gas pressure in the container is a result of the force exerted on the walls by the gas particles during the collisions.

Atmospheric Pressure

-Earth is surrounded by a thick layer of atmosphere.

-Atmospheric pressure is the pressure exerted by the weight of the atmosphere,at any point,on the earth's surface.

-Atmospheric pressure acts in all directions.

-Atmospheric pressure decreases with increasing altitude.

raya

raya...

nak cakap apa pasal raya?

sambutan meriah kat malaysia?sebab dah habis sebulan berpuasa?

raya,raya jugak,puasa tu penting,mungkin ni puasa terakhir kita,pejam celik,pejam celik,dah tak dapat nak banyakkan pahala berlipat ganda lagi...orang sepatutnya buat terawih,bukan main mercun yang berbahaya...bazir duit je...kalau beli makanan takpe la jugak...mudah-mudahan segala amalan yang dilakukan dalam bulan puasa tahun ni diterima ILAHI...Insya'Allah...cakap pasal raya,penting jugak tu,aku nak gak kutip duit raya,hehe,almaklum,adaptor PS2 rosak...pastu aku ingat nak beli beg spare untuk trip ke cameron akhir sekolah nanti ngan family,Insya'Allah...beg tu stylo habis...tahun ni baju melayu aku,pink...baju blue toms warna purple,baju v-collar paul smith style habes...aku nak pakai ngan skinny aku...pergh syok...aku kekadang nakal jugak,tp puasa tu penting because,bun yal islam mu a'ala khamsen,syahadati al lailahaillAllah,wa anna Muhammadarasulullah,wa iqomis solah,wa ita izzakat,waSAUMMI RAMADHAN,wa hajjil bait...

sekian...

continue...

but i can't...

a wish...

i totally hate tgb.it's so,so many homework,that's the thing.i wish i was at my old school back. one homework after the other.i mean oh c'mon.i hate it3X.i wanna go back.please.i hate it.

i rather be uncool than having tons of homework.i rather take a slow step than going to this college.

i wanna go back.

time(me)

even though you don't have the time,

if your memories are still flowing inside people's mind,

you're still exist.(me)

it's a story but you'll decide what it is

people have many experience such as happy experience.

as a person,student i would like to say that happy experience

is hardly faded from people's brain cells.it will always flow through

so that people can always smile,be happy or maybe mistaken crazy.(if the person always smile)

yet,the happy experience could be anything such as having a dinner or maybe having a best friend.

and for me...is having a best friend.(me)