Physics P3 Watch

danmccolm
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#361
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#361
(Original post by MarcusLL)
The reason why a real image has to be formed by a camera is because real rays must fall onto the film i.e. the light rays must intersect or something
Yep, the light rays need to cross to form an image on a film.
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MarcusLL
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#362
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#362
(Original post by danmccolm)
It will only negate a mark if the question said "Give ONE reason" etc.. but even if you give more than one, they'll look at the first one only I think.
i saw LDR as an answer on a mark scheme somewhere for a similar question.
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trance addict
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#363
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#363
(Original post by MarcusLL)
btw did everyone get 810000Nm for the moment?
something like that

lovely casio fx991 re-arranged and solved the secondary coils equation for me haha
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billet-doux
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#364
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#364
(Original post by MarcusLL)
btw did everyone get 810000Nm for the moment?
Yeap.
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The Epicurean
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#365
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#365
I can see i got a few questions like the light bulb powered by bicycle one and millenium wheel one, and the camera question.
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MarcusLL
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#366
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#366
I was disappointed that there wasnt more on lenses, especially drawing them after all the time i wasted learning the copious rules
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MarcusLL
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#367
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#367
(Original post by trance addict)
something like that

lovely casio fx991 re-arranged and solved the secondary coils equation for me haha
u got 10500 right?
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billet-doux
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#368
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#368
(Original post by MarcusLL)
u got 10500 right?
I did!
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indie_couture
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#369
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#369
(Original post by MarcusLL)
I was disappointed that there wasnt more on lenses, especially drawing them after all the time i wasted learning the copious rules
yeh me too! x
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wizard710
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#370
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#370
(Original post by trance addict)
something like that

lovely casio fx991 re-arranged and solved the secondary coils equation for me haha
I'm jealous of a calculator
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choc-addict--x
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#371
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#371
why is everyone saying it was easy? :eek:

i found it so hard! i missed out a few questions and i didn't have time to come back to them at the end...

and for the features of an ultrasound wave i wasn't sure what the question meant and i just wrote that 1) it can be used for pre-natal scanning and 2) it can be used for cleaning mechanical devices...

seriously that paper was really hard.. i found the london eye section difficult!
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billet-doux
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#372
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#372
(Original post by MarcusLL)
I was disappointed that there wasnt more on lenses, especially drawing them after all the time i wasted learning the copious rules
Same here. I spent an entire day learning how to draw them and it didn't even come up. I foolishly presumed that transformers wouldn't come up either, as they were a large part of the January exam, yet they did.
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danmccolm
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#373
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#373
What was the explanation for the transformer and the bicycle lamp?
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billet-doux
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#374
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#374
(Original post by choc-addict--x)
why is everyone saying it was easy? :eek:
I'm not! It was bloody horrific! :mad:
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indie_couture
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#375
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#375
so how many more exams do you all have?
That was my last!!!! =D
Got to wait till my friends finish tomorrow though to celebrate!
xxxxxxxxxxxxxxx
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choc-addict--x
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#376
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#376
(Original post by trance addict)
I put the big bang for the first one
second was something about nuclear fusion making them
third was stars exploding

im sure it said where did the elements come from/are made so i put the big bang that question was very fragmented and stupid though

lol i didn't know what to put for the 1st one so i put space! the examiner will think i'm so stupid lol
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indie_couture
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#377
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#377
(Original post by piece_by_piece)
I'm not! It was bloody horrific! :mad:
i agree.....i spent ages learning about generators and motors and got them mixed up!!!!
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MarcusLL
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#378
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#378
(Original post by choc-addict--x)
why is everyone saying it was easy? :eek:

i found it so hard! i missed out a few questions and i didn't have time to come back to them at the end...

and for the features of an ultrasound wave i wasn't sure what the question meant and i just wrote that 1) it can be used for pre-natal scanning and 2) it can be used for cleaning mechanical devices...

seriously that paper was really hard.. i found the london eye section difficult!
i think it asked for properties of ultrasound not uses......
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wizard710
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#379
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#379
(Original post by danmccolm)
What was the explanation for the transformer and the bicycle lamp?
Coil experiences a changing magnetic field and a p.d. is induced which lights the lamps
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trance addict
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#380
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#380
(Original post by MarcusLL)
u got 10500 right?
something like that.. i knopw it ended in 500

the calc took ageeees to re-arrange the thing though, would have been quicker by hand... first time it took ages aboiut to reset it and it comes up with the answer.. it took like 30 seconds ffs.

i was messing around so much with the calc i started to get weird looks from the invigilators lol sitting there with a constant puzzled look on my face
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