Physics paper 3 NOTES.

[awsome12345]

:O: ali@help me wid the half life thingy plzzz....and dont worrry bout haochen hez jus jealous lolz
and thanks in advance annd for da notes :Yahoo!: :Yahoo!: :lol: :lol:

 

[sweetstuti95]

even i have made some notes u can have a look

 

[narutogirl]

@hao chen..are u gonna be a detective or something when u grow up (just reminded me of detective conan..lol XD)

 

[awsome12345]

tnx sweetstuti95 ....

 

[haochen]

:O: ali@help me wid the half life thingy plzzz....and dont worrry bout haochen hez jus jealous lolz
and thanks in advance annd for da notes :Yahoo!: :Yahoo!: :lol: :lol:

im jealous
i think he is the one that is jealous
and about the half life:
it cant be prdicted and it can happen any time and random
to calculate it u divide the given by 2 until u get the specific half life
hope u got it and it is more better when u post a paper coz i can explain more better

@hao chen..are u gonna be a detective or something when u grow up (just reminded me of detective conan..lol XD)

who know ???
being conan is the best ???
smartest person

and look at every of my post
there is thx from ali123456789

 

[Ali4lyf]

@ hao chen look every 1 knows that you are wrong and I am right.

@awsome12345 here you go bro:
A substance is radioactive is the atoms of which it is made are unstable. The atoms may decay and turn into atoms of another element or different isotopes of the same element. The probability that a particular atom will decay in each time period is a fixed constant. This means that in each time period of a fixed length, the number of undecayed atoms remaining is reduced by a fixed factor.
In each period of 25 years the number of undecayed atoms falls to one half of what it was at the start of the time period. This factor of a half is significant. The time period for the number of undecayed atoms, or the mass of undecayed material, or the activity – the number of decays per second of the material – is called the half life.

I HOPE YOU CLEARLY UNDERSTOOD =)

Thanks,
Warm Regards,
Ali4lyf

 

[narutogirl]

tnx naruto girl....

lol why are u thanking me..
i guess u wrote my name by mistake or something but it counts yay someone to cheer me up after i lost 12 marks

@hao chen..i am sorry but conan isn't the smartest...me, narutogirl, is soo much smarter i can make him ashamed of himself........pftt who am i kidding it would have helped if i had half his brain..lol XD

 

[Ali4lyf]

@ naruto : in which subject u lost 12 marks? Is it the maximum marks u ever lost? For me every subject I lost more than 12 marks

 

[narutogirl]

@ naruto : in which subject u lost 12 marks? Is it the maximum marks u ever lost? For me every subject I lost more than 12 marks

lol first of all its narutogirl*..lol
it was in business..i lose lots more in everything don't worry all those stupid weird mistakes that u usually wonder who the heck makes such a mistake...its urs truelly..lol

everyone came out really happy from the exam..i didn't cuz i fread out in the exam n eventhu it was easy and lucky me wo ho it had 12 marks..awesome -__-
lol anyway :Yahoo!:

 

[respect1]

How does a transformer work? Please reply i am having trouble with these magnetic waves and induction and generators.
Pls someone help
Thanks!

 

[awsome12345]

haha u r rite naruto girl i wrote by mistake
and tnx Ali

 

[awsome12345]

haha u r rite naruto girl i wrote by mistake
and tnx Ali :d : ):

 

[narutogirl]

haha u r rite naruto girl i wrote by mistake
and tnx Ali :d : ):

and u had to make me sure by writing it twice..lol
but that thnx still kinda counts..
lol...

 

[TBLBAOILA]

sorry bro, i dont think this will be a very beneficial notes to study from since its kinda not organised and can seriously be hard to understand ,,, thats my opinion tho ...

Tu es malade :evil:

 

[Lyfroker]

r u guyz 100% sure that 45 marks are enf to get an A???????????? out of 80 :| ????????????

 

[babyzee]

@ shehab94 : here u go

a Alpha rays (or particles) helium nuclei – 42 He
· Big and heavy (slow moving)
· Don’t penetrate into materials
· Very ionising
· Blocked by paper

b Beta rays (or particles) high-energy electrons – -10 e
. Penetrate materials moderately
· Ionise moderately
· (for every beta particle emitted, a neutron turns into a proton in the nucleus)
· Blocked by thin Aluminium

c Gamma rays, electromagnetic waves with shorter wavelength (higher frequency) than x-rays
· Opposite to alpha
· Penetrate materials well
· Weakly ionising

If u need more than ur free to ask it =)

@ hao chen:Who is ali123456789? maybe you know him but I dont know him
and which part is not in our syllabus? tell me ok . em waiting. =)

Warm regards,
Ali4lyf

Can yiou post notes of cathode ray oscilloscopes please?

 

[babyzee]

@ shehab94 : here u go

a Alpha rays (or particles) helium nuclei – 42 He
· Big and heavy (slow moving)
· Don’t penetrate into materials
· Very ionising
· Blocked by paper

b Beta rays (or particles) high-energy electrons – -10 e
. Penetrate materials moderately
· Ionise moderately
· (for every beta particle emitted, a neutron turns into a proton in the nucleus)
· Blocked by thin Aluminium

c Gamma rays, electromagnetic waves with shorter wavelength (higher frequency) than x-rays
· Opposite to alpha
· Penetrate materials well
· Weakly ionising

If u need more than ur free to ask it =)

@ hao chen:Who is ali123456789? maybe you know him but I dont know him
and which part is not in our syllabus? tell me ok . em waiting. =)

Warm regards,
Ali4lyf

Can yiou post notes of cathode ray oscilloscopes please?

 

[awsome12345]

narutogirl@: hahahahaah i wrote it twice by ''MISTAKE'' ahahahahaah,,,oh man :fool: i m making alot of mistakes :shock: :shock: :shock: ,,,i hope i dont get them in da exam :Search: :lol: :roll:
hmmm so k dat thanks counts,, lolz

 

[EmanAkhuZeina]

PPL CHECK MY FORUM PHYSICS NOTES I THINK U MIGHT BENEFIT FROM

 

[haochen]

tnx naruto girl....

lol why are u thanking me..
i guess u wrote my name by mistake or something but it counts yay someone to cheer me up after i lost 12 marks

@hao chen..i am sorry but conan isn't the smartest...me, narutogirl, is soo much smarter i can make him ashamed of himself........pftt who am i kidding it would have helped if i had half his brain..lol XD

i know :lol:

@ hao chen look every 1 knows that you are wrong and I am right.

@awsome12345 here you go bro:
A substance is radioactive is the atoms of which it is made are unstable. The atoms may decay and turn into atoms of another element or different isotopes of the same element. The probability that a particular atom will decay in each time period is a fixed constant. This means that in each time period of a fixed length, the number of undecayed atoms remaining is reduced by a fixed factor.
In each period of 25 years the number of undecayed atoms falls to one half of what it was at the start of the time period. This factor of a half is significant. The time period for the number of undecayed atoms, or the mass of undecayed material, or the activity – the number of decays per second of the material – is called the half life.

I HOPE YOU CLEARLY UNDERSTOOD =)

Thanks,
Warm Regards,
Ali4lyf

do u want me to prove it ???
if yes then ill show u what i got

@awsome12345 ..................nothing to say