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

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Reply 680

Blake-inator

lol, our CGP doesnt have all these fancy words.... do i need to learn them?

Reply 681

Captain Anonymous

Original post by lolface32

Do you mean Homologous series?

It is a family of compounds with the same functional group!

Define Eutrophication

yh sorry that's what i meant, eutrophication is when the oxygen levels decrease so much in the oceans that it indangers aquatic life :biggrin:

Reply 682

Captain Anonymous

Explain what is meant by electromagnet induction and how does it occur?

Reply 683

lolface32

Original post by Captain Anonymous

Explain what is meant by electromagnet induction and how does it occur?

Electromagnetic induction is when a potential difference is made across a conductor who's magnetic field is constantly being changed :biggrin:

Describe how a hydraulic system works :smile:

Reply 684

lolface32

Original post by Blake-inator

lol, our CGP doesnt have all these fancy words.... do i need to learn them?

I think you do :frown:

Reply 685

Captain Anonymous

Original post by lolface32

Electromagnetic induction is when a potential difference is made across a conductor who's magnetic field is constantly being changed :biggrin:

Describe how a hydraulic system works :smile:

Oh hate this bit, but anyways its basically that the force that is applied at one point is transmitted to another point using an incompressible fluid.

Reply 686

Captain Anonymous

Original post by Blake-inator

lol, our CGP doesnt have all these fancy words.... do i need to learn them?

yeah you will need to know them...

Reply 687

lolface32

Original post by Captain Anonymous

Oh hate this bit, but anyways its basically that the force that is applied at one point is transmitted to another point using an incompressible fluid.

You could have talked about how the first point would have a small surface area, and the next one would have a larger one (increasing force). That is how they work anyway :smile:

Reply 688

Captain Anonymous

explain how a transformer works ...

Reply 689

beaux1

Getting very worried here guys, most of these words I am positive have not been covered in our science lessons!!

Reply 690

Captain Anonymous

Original post by beaux1

Getting very worried here guys, most of these words I am positive have not been covered in our science lessons!!

what book/how are you using to revise

Reply 691

lolface32

Original post by Captain Anonymous

explain how a transformer works ...

An alternating current is passed through the primary coil, here the current keeps changing, and so does the magnetic field. The field is felt by the secondary coil which then goes through electromagnetic induction and a alternating voltage is produced :smile:

Wow, physics is so boooring :frown:

A light beam travels from air to water.
Angle of incidence is 34
Refractive index is 1.44
Work out angle of refraction to the nearest degree

put down working!

Reply 692

lolface32

Original post by beaux1

Getting very worried here guys, most of these words I am positive have not been covered in our science lessons!!