Edexcel Physics PSA1 (Salters Horners - June 8th)

Jamie.

Anyone do this exam?

I did it as a resit and thought it was quite a nice paper.

Also was it just me or was there a mistake in the last question with the
spreadsheet - the cumulative distances?

i noticed that too.. it did add up to forty something like it should've done? (edit.. i mean it was a 0.1's out or something)

Not too bad.. wasnt that happy with PSA2

Chris

Reply 2

also, thought that dung beatle question was a load of rubbish in PSA2.. are the examiners running out of story lines? lol :p:

Reply 3

Jamie.

OP

Yup I think it was 42.3 instead of 42.5 or something (can't remember exactly).

Which technically would make the answer to the next question (the formula) wrong if you did it that way! (I think).

Reply 4

Liar

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ChriSat

also, thought that dung beatle question was a load of rubbish in PSA2.. are the examiners running out of story lines? lol :p:

ye that made me laugh when i read that in the exam :p:

Reply 5

Jamie.

Yup I think it was 42.3 instead of 42.5 or something (can't remember exactly).

Which technically would make the answer to the next question (the formula) wrong if you did it that way! (I think).

the next question was to do with a = (v-u)/t ??

edit:: sorry, i didnt realise you were talking about the formula question..

Chris

Reply 6

Jiggly Puff

yeee dung beetles lmao
wot did u guys get 4 the answer?? , was sumfink lyk:
1) What would happen if the scientist rotated the plane of polarisation by 90 degrees?
2) How would the beetles react if there was no moonlight present?

Reply 7

The dung beetle cheered me up. It should be the new Salters Horners mascot, along with Mungo Man.

For the scientists and their 90 degree contraption question, I put that the beetle would walk in a line perpendicular to that of its usual path, but my friends tell me I'm wrong because the light is polarised before it hits the filter, and so no light would get through. Hopefully I'm right, but I'm unsure.

For the other one, I wrote "the beetle would deff out", no I didn't really. I put that it would either stay still or would have some sort of instinct that made it find shelter for the night. Either way I couldn't think of anything very physicsy to write there.

Reply 8

ChriSat

also, thought that dung beatle question was a load of rubbish in PSA2.. are the examiners running out of story lines? lol :p:

'Story lines', ha, I love it! Salters Horners exams are like quests in themselves.

Reply 9

PlaystationStudies

'Story lines', ha, I love it! Salters Horners exams are like quests in themselves.

lol sorry -- i couldn't think of a better way of putting it :p:

they are very inconspicuous questions..

Reply 10

ChriSat

lol sorry -- i couldn't think of a better way of putting it :p:

they are very inconspicuous questions..

Nah I like that way of putting it. It's true, they are mostly subtle, though sometimes you get something like, "John is playing on his Super Nintendo in his bedroom. Assuming that John is a photon whose photon energy is 4.7_*10^-19 J, work out John's frequency, and given that Mario running across the screen is modelled on a photoelectron whose presence is accounted for by the photoelectric effect, whose maximum kinetic energy is 0.1 _*10^-19 J, calculate the threshold frequency of the Super Nintendo." Although I do get a sense of satisfaction from picking out the physics in more obscure questions.

Reply 11

PlaystationStudies

Nah I like that way of putting it. It's true, they are mostly subtle, though sometimes you get something like, "John is playing on his Super Nintendo in his bedroom. Assuming that John is a photon whose photon energy is 4.7_*10^-19 J, work out John's frequency, and given that Mario running across the screen is modelled on a photoelectron whose presence is accounted for by the photoelectric effect, whose maximum kinetic energy is 0.1 _*10^-19 J, calculate the threshold frequency of the Super Nintendo." Although I do get a sense of satisfaction from picking out the physics in more obscure questions.

hahaha... yeah there is abit more of a buzz when you decode the actual question in the first place, then work out the answer, i must admit..

Did anyone notice the lack of certain topics in the exam? Radiation and lots of other bits of the syllabus i revised, and i assume others revised, were missing.. :s-smilie:

Chris

Reply 12