IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => GCE AS & A2 Level => Queries => Topic started by: AL*Eagle on January 13, 2010, 12:59:41 pm

Title: what are the grade limits for AS physics, chemistry and bio
Post by: AL*Eagle on January 13, 2010, 12:59:41 pm: theyre all out of 80 rite??
wats the minimum grade for an A
bio was amazing :)
physics was a lil bit not easy :P <<
chemistry was HARD!!! << lol hehe i just hope it wont be hard 2mrw :s
Title: Re: what are the grade limits for AS physics, chemistry and bio
Post by: Tammy on January 13, 2010, 03:18:51 pm: Well, We still don't know the exact marks yet. Because it may curve down.. And yes they're all out of 80! :o

Good luck in Chemistry tomorrow
Title: Re: what are the grade limits for AS physics, chemistry and bio
Post by: ksitna on January 13, 2010, 03:38:39 pm: im sooo worried about chemistry tomorrow
the syllabus is just so strict!!!
>:(
anyways good luck guys
Title: Re: what are the grade limits for AS physics, chemistry and bio
Post by: IBO on January 13, 2010, 04:15:17 pm: Quote from: ksitna on January 13, 2010, 03:38:39 pm
im sooo worried about chemistry tomorrow
the syllabus is just so strict!!!
>:(
anyways good luck guys

I know dude.........my teacher expected for me an A..........i dnt think ill be able to get it:S any advice people....................................aaaaaaand good luck everyone in ur chem tmrw
Title: Re: what are the grade limits for AS physics, chemistry and bio
Post by: Tammy on January 13, 2010, 04:23:32 pm: Peeps I got a couple of chemistry questions:

Why is it necessary to ionize atoms before acceleration?
and
Name the device used to ionize atoms in the mass spectrometer.
Title: Re: what are the grade limits for AS physics, chemistry and bio
Post by: ksitna on January 13, 2010, 04:26:52 pm: Quote from: Tammy on January 13, 2010, 04:23:32 pm
Peeps I got a couple of chemistry questions:

Why is it necessary to ionize atoms before acceleration?
and
Name the device used to ionize atoms in the mass spectrometer.

hoowww the on earth......
Title: Re: what are the grade limits for AS physics, chemistry and bio
Post by: ksitna on January 13, 2010, 04:33:35 pm: can someone please explain redox reactions for me please :D
Title: Re: what are the grade limits for AS physics, chemistry and bio
Post by: IBO on January 13, 2010, 05:02:44 pm: Quote from: Tammy on January 13, 2010, 04:23:32 pm
Peeps I got a couple of chemistry questions:

Why is it necessary to ionize atoms before acceleration?
and
Name the device used to ionize atoms in the mass spectrometer.

-you ionize atoms inorder to be able to deflect them and accelerate them...........if they're not in the form of ions you cnt accelerate them because there's no charge
-i dnt think they'll ask you to mention a device...........the Q will come in a way where they'll ask you to say how the atoms are ionized...........................they're ionized by bombarding them with a beam of high energy electrons which will knock off an electron forming an ion
Title: Re: what are the grade limits for AS physics, chemistry and bio
Post by: Saladin on January 13, 2010, 05:23:35 pm: The grade boundaries change from year to year.
Title: Re: what are the grade limits for AS physics, chemistry and bio
Post by: Saladin on January 13, 2010, 05:35:07 pm: Here u go
Title: Re: what are the grade limits for AS physics, chemistry and bio
Post by: 7ooD on January 14, 2010, 03:48:31 am: cool so u mean that there are grade boundaries and that they r not fixed to 80% for example in math to get an A?
Title: Re: what are the grade limits for AS physics, chemistry and bio
Post by: AL*Eagle on January 14, 2010, 06:13:28 am: thanks The Dude 321
appreciate it
and thanks ppl for ur wishes :) best of luk to you too exam in like an hour :s
Title: Re: what are the grade limits for AS physics, chemistry and bio
Post by: Tammy on January 14, 2010, 07:31:23 am: Quote from: IBO on January 13, 2010, 05:02:44 pm

-you ionize atoms inorder to be able to deflect them and accelerate them...........if they're not in the form of ions you cnt accelerate them because there's no charge
-i dnt think they'll ask you to mention a device...........the Q will come in a way where they'll ask you to say how the atoms are ionized...........................they're ionized by bombarding them with a beam of high energy electrons which will knock off an electron forming an ion

Thanks... Yeah I don't think they're going to ask that question, but oh well ::)