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UNOFFICIAL MARKSCHEME!~AQA GCSE Physics Unit 2 25th Janurary NEW SPEC

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Reply 460

RachelBx

Original post by Dalek1099

Terminal velocity did come up though and so upset momentum didn't come up.

no it didnt.. did it?? ahhhhh what question???

Reply 461

a123a

Original post by shibucool

How about the switch was open?

naa didnt put that. :frown:

Reply 462

Dalek1099

Original post by Sataris

Was that the go-karts?

yep

Reply 463

IsaacIIV

Original post by a123a

naa didnt put that. :frown:

A switch in a circuit isn't a mistake...

Reply 464

popcornmaker

Original post by lolface32

it's 1.67, lol

urm no its not haha, its 1.7
it would be 1.67 if it was to 3sf
thats awkward

Reply 465

shibucool

Original post by Dalek1099

Terminal velocity did come up though and so upset momentum didn't come up.

Same! I expected a 5 mark question on momentum and calculating the velocity. I couldn't believe RCCB's came up again after the may 2012 paper. I thought momentum will definitely come up since it wasn't there in the may 2012.

Reply 466

a123a

Original post by IsaacIIV

A switch in a circuit isn't a mistake...

that's what i thought as well!

Reply 467

Dalek1099

Original post by a123a

naa didnt put that. :frown:

The voltmeter and ammeter being incorrectly connected should count because they are two separate things, the voltmeter and ammeter could have been connected in parallel and there would be only one problem then but if the switch was open and people said that they will also get the mark- there may we have been more than two things wrong with the circuit.

Reply 468

lolface32

Original post by popcornmaker

urm no its not haha, its 1.7
it would be 1.67 if it was to 3sf
thats awkward

Oh ****! WOOPS! :biggrin:

yeah very akward -_-

Reply 469

shibucool

Original post by IsaacIIV

A switch in a circuit isn't a mistake...

Yes it is! Then how is the appliance supposed to work then?

Reply 470

a123a

for the go karts one did anyone put:

the drag force at any speed will be smaller for the final model (y) in comparison to the model x, as the kart is more streamlined, therefore Y's drag force will meet the forward force at a higher speed.. :s-smilie:

(edited 11 years ago)

Reply 471

Sataris

Original post by a123a

for the go karts one did anyone put:

the drag force at any speed will be smaller for the final model (y) in comparison to the model x, as the car is more streamlined, therefore Y's drag force will meet the forward force at a higher speed.. :s-smilie:

I put basically that, but more verbosely. I hate trying to meet everything on markschemes.

Reply 472

NightStrider

Original post by shibucool

Yes it is! Then how is the appliance supposed to work then?

It works when the person turns it on. What you are saying is that the switches that turn on lights are a mistake ......... It is intentional

Reply 473

IsaacIIV

Original post by shibucool

Yes it is! Then how is the appliance supposed to work then?

I don't think you understand the point of a switch, as opposed to a brake in the circuit. One can easily turn a switch on when the appliance needs to be used. Do you leave you appliances on at home?

Reply 474

RachelBx

Original post by shibucool

Yes it is! Then how is the appliance supposed to work then?

By turning on the switch.... a switch is meant to be opened or closed. It isnt a mistake

Reply 475

shibucool

Original post by IsaacIIV

I don't think you understand the point of a switch, as opposed to a brake in the circuit. One can easily turn a switch on when the appliance needs to be used. Do you leave you appliances on at home?

Yeah but one can easily swap a voltmeter and a ammeter into it's right place.

Reply 476

NightStrider

Original post by shibucool

Yeah but one can easily swap a voltmeter and a ammeter into it's right place.

But they are two different mistakes though

Reply 477

shibucool

Original post by NightStrider

But they are two different mistakes though

Yeah but having an open switch will break an circuit as the current can't pass through

Reply 478

IsaacIIV

Original post by shibucool

Yeah but one can easily swap a voltmeter and a ammeter into it's right place.

not when it encased in the product, the switch on the other hand it exposed externally from the circuit to the user : to put it simply, a switch is an I/O device, a/v meters are plain output devices