AQA GCSE - Unit 3 (P3,B3,C3) New specification papers.

Reply 1060

Captain Anonymous

14

i wonder whose got the most comments on this thread....

Reply 1061

Chlorophile

20

Original post by lolface32

What person got 49 in all of them, I got 49 in two of them and hope you are not referring to me? :confused:

Besides, I don't understand why you are angry. ISA's are just the same questions over and over again, anyone can do good in them? But I have to agree with you, ISA's are INCREDIBLY flawed for this reason, easy A*. It is no wonder the losers in the bottom sets do better than those smarter :angry:

You're right, ISAs are extraordinarily flawed. They don't reward scientific skill, they reward students who understand how the exam system works and can think like an examiner. I got full marks in all three with barely any work whatsoever, simply because I studied the mark schemes in detail. As long as you're thorough in your thinking, understand the terminology AQA is crazy about and understand what specific points get you marks, you're almost guaranteed to get an A* even with a poor understanding of science.

Reply 1062

sneakbo2

10

Original post by lolface32

Nope, let your anger out, seems it is the only place you can do it really. The best advice, probably not useful, I can give is be a consistent piss take on your school and the head of science :cool:

Oh don't worry I already do that. I haven't written notes in my book since october hahaha, I stopped bothering after what happened in the physics ISA and he can't teach anyway obviously as you can all see how much of an idiot he is. He said i'd fail the most recent science exam we did and I got an a* now he's butthurt :woo:

Reply 1063

lolface32

Original post by Captain Anonymous

i wonder whose got the most comments on this thread....

you do

Reply 1064

Captain Anonymous

14

Original post by lolface32

you do

woooohooooo :d

Reply 1065

Captain Anonymous

14

Sneakbo2 vs Head of science

Reply 1066

Blake-inator

9

hehe... revision game anyone?

Reply 1067

Obliviate

1

Original post by Blake-inator

hehe... revision game anyone?

biology, chemistry or physics? :>

Reply 1068

Kill3er

13

Original post by Captain Anonymous

Sneakbo2 vs Head of science

My hypothesis is about fuels but in my method im talking about burning alcohols. Is this correct? :confused:

Reply 1069

Efemena15

OP

4

I'm up for revision game. Lets do all three sciences!

Reply 1070

Blake-inator

9

okay, Explain how electromagnetic induction works and give examples of where it is used.

Reply 1071

Kill3er

13

Also is a CGP revision guide an okay source as one of my two sources for my ISA

Reply 1072

Obliviate

1

Original post by Blake-inator

okay, Explain how electromagnetic induction works and give examples of where it is used.

By moving a magnet in a coil of wire or an electrical conductor in a magnetic field you can create electromagnetic induction. If the magnet or the coil will be moving backwards and forwards, a potential difference will be produced that keeps swapping direction (an alternating current).
This can also be done by turning a magnet in a coil, because as you turn the magnet, the magnetic field through coil changes and this change in the magnetic field induces a potential difference, which can make a current flow in the wire.
Example: in dynamos - on bikes to power lights.

Q: How the efficiency of food production can be improved?

(edited 11 years ago)

Reply 1073

Chlorophile

20

Original post by Kill3er

Also is a CGP revision guide an okay source as one of my two sources for my ISA

You can use absolutely anything as a source (even something made up, since the examiner isn't going to check) as long as you can justify why it was/was not useful.

Reply 1074

Blake-inator

9

Original post by Obliviate

By moving a magnet in a coil of wire or an electrical conductor in a magnetic field you can create electromagnetic induction. If the magnet or the coil will be moving backwards and forwards, a potential difference will be produced that keeps swapping direction (an alternating current).
This can also be done by turning a magnet in a coil, because as you turn the magnet, the magnetic field through coil changes and this change in the magnetic field induces a potential difference, which can make a current flow in the wire.
Example: in dynamos - on bikes to power lights.

Q: How the efficiency of food production can be improved?

less stages in food chain (animals waste a lot of biomass for non-edible parts)
restricting energy loss (intensively farmed animals so they dont waste energy on movement and giving off heat)
new food sources like Mycoprotein (efficient and can the Fusarium can feed on waste materials)

Reply 1075

Blake-inator

9

What four factors must you consider when designing a Biogas Generator?

Reply 1076

Kill3er

13

Original post by Chlorophile

You can use absolutely anything as a source (even something made up, since the examiner isn't going to check) as long as you can justify why it was/was not useful.

Thanks!

Reply 1077

lolface32

Original post by Chlorophile

You can use absolutely anything as a source (even something made up, since the examiner isn't going to check) as long as you can justify why it was/was not useful.

Really? I remember having to put every single detail of the website link onto the paper? :eek:

Reply 1078

Unknown505

1

Original post by Blake-inator

What four factors must you consider when designing a Biogas Generator?

Cost: A batch generator is cheaper than a continuous
efficiency: In a batch everything is done manually, continuous its all mechanical.
Convenience: What are you supplying, a batch for small scale, continuous for large
Location: Its going to smell, so away from houses.

Reply 1079

Chlorophile

20

Original post by lolface32

Really? I remember having to put every single detail of the website link onto the paper? :eek:

The information about the source has to be comprehensive, so if you were to make up for instance a book, you'd want to name a made up author, page number, etc. To be perfectly honest, it's not really worth the effort to make up a source but there's nothing in principle to stop you doing it. I didn't make up my sources but I specifically chose ones that I could talk about. One of my sources was a 1979 Britannica, the obvious comment being that although it goes into a lot of depth, it is potentially out of date and over complicated for my needs.

AQA GCSE - Unit 3 (P3,B3,C3) New specification papers.

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