June 2011 G485-Fields, Particles and Frontiers of Physics Watch

MarieLyon
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#621
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#621
(Original post by Kalamari Dave)
How much/long have people been revising for this paper?
hmmm... in total about 5 hours.
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Lengalicious
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#622
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#622
(Original post by Oh my Ms. Coffey)
Well theres only been 2, both of which the capacitor stuff was easy on.
Yeah thats great once you know how to do it but its a relative thing. . . I can guarantee that those aren't the easiest questions that can come up lets put it that way, and its a new specification so whatever they haven't pulled out their arse yet is likely to come up. Just don't get complacent =P
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yokabasha
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#623
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#623
Do gamma cameras give 3-d or 2-d images?

and are gamma cameras used for both PET and gamma emittin isotopes
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Oh my Ms. Coffey
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#624
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#624
(Original post by Lengalicious)
Yeah thats great once you know how to do it but its a relative thing. . . I can guarantee that those aren't the easiest questions that can come up lets put it that way, and its a new specification so whatever they haven't pulled out their arse yet is likely to come up. Just don't get complacent =P
I thought the spec paper was quite hard in some areas, the question on an experiment to differentiate between the different types of radiation and the typical penetration values completely got me.
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Lengalicious
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#625
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#625
How did everyone find C4 today? xP
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Captain Hob
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#626
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#626
(Original post by yokabasha)
Do gamma cameras give 3-d or 2-d images?
2D, but if you put two gamma cameras at right angles you get 3D.
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MarieLyon
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#627
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#627
(Original post by Oh my Ms. Coffey)
I thought the spec paper was quite hard in some areas, the question on an experiment to differentiate between the different types of radiation and the typical penetration values completely got me.
i thought the spec paper was extremely difficult!
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MarieLyon
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#628
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#628
(Original post by Lengalicious)
How did everyone find C4 today? xP
I had C3 today.
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Oh my Ms. Coffey
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#629
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#629
Heres a nice formula for people to use

N=(m/M)xNa


N = Number of particles/whatever
m = mass we are dealing with
M = Atomic number as a metric in KG Eg. Uranium238 = 0.238
Na = Avagadro's constant

With this you can work out how much mass of a substance or how many particles there are.
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Lengalicious
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#630
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#630
(Original post by MarieLyon)
I had C3 today.
wasnt that exam last thursday lol?
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morleyman200
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#631
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#631
haha found out why im worrying about capacitors, my exam is the G495, its a good start considering its tomorrow :P
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Oh my Ms. Coffey
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#632
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#632
(Original post by Lengalicious)
wasnt that exam last thursday lol?
MEI C3 was today.
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muffingg
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#633
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#633
I just hope none of the medical crap comes up!

Order of preference:

Electric Fields
Magnetic Fields
Electromagnetism
Capacitors
Cosmology
Nuclear Physics
.
.
.
.
.
Medical Physics
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Raimu
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#634
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#634
I had C4 today, not allowed to talk about it I think. All I'm gonna say is I think I have an A* now.
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Oh my Ms. Coffey
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#635
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#635
(Original post by muffingg)
I just hope none of the medical crap comes up!

Order of preference:

Electric Fields
Magnetic Fields
Electromagnetism
Capacitors
Cosmology
Nuclear Physics
.
.
.
.
.
Medical Physics
Im starting to like medical, its nice once you remember it.
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Raimu
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#636
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#636
Medical is awesome, it's just remembering stuff, easy marks.
Capacitors and fields can be tough if the examiners want to be dicks with the questions.
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Lengalicious
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#637
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#637
(Original post by muffingg)
I just hope none of the medical crap comes up!

Order of preference:

Electric Fields
Magnetic Fields
Electromagnetism
Capacitors
Cosmology
Nuclear Physics
.
.
.
.
.
Medical Physics
judging by what didnt come up in the last 2011 jan paper, im guessing there will be a question utilising the equation f ' = c/(c-2v) x f in ultrasound, in med imaging there will probz be a question on PET scan or gamma camera as MRI was in last paper,
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Pandit Bandit
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#638
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#638
describe and interpret Hubble’s redshift
observations and what he deduced from it?
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MarieLyon
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#639
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#639
(Original post by Lengalicious)
wasnt that exam last thursday lol?
i think that was M1
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Lengalicious
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#640
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#640
maybe even endoscope
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