Physics predictions,higher

The-Rafalution

so im down to my last exam higher physics...4 full days to concentrate on it so just wondering has anyone got any predictions for the paper....i need a c3 minimum for points but failed miserably in the mocks.Has yer teachers prediceted any experiments etc?
thanks

MattD

One of the sonometer experiments should come up. And one of those 'latent heat of vaporisation/fusion'

Study your Modern Physics and your Particle Physics. Thatl get you like 3 questions from Section B covered

The-Rafalution

how is that 3 q's from just 2 sections?

MattD

Well theres 1 question on Modern Physics, One question on Particles.

Usually 1 option of Q12 is Modern Physics. So thats half a question

And there will be 2 parts from Q5 related to those two chapters.

Maybe not 3 questions, but the marks add up.

starkinter

I wouldn't be surprised if the Newton's second law experiment comes up.

m-i-t-s-u-k-o

The electricity experiment the variation of the resistance of a thermistor with temp is tipped to come up hasn't been asked before!

SimpleLogic

I was looking back through the papers today. if i had to guess would say
Q1 acceleration proportional to force
Q2 Sonometer- fundamental frequency of a stretched wire with tension
Q3 Speed of sound in air
Q4 Resistivity of the material of a wire
:rolleyes:

Stevieo

Electricity...resistance of certain items with temperature's tipped. As well as Capacitance for section B!

A-Bit-Dodge

My Grinds teacher is a regular on the exams commission and apparently its gonna be the F=ma, resisitivity, fusion of ice and a sonometer, optic fibres and domestic circuits for the theme question, mechanics 2 (centripetal force), thermionic emission, geiger muller counter explanation for particle physics, and thats all he told us, probably wants us to do some actual study for the rest...:rolleyes:

shanedownfall

A-Bit-Dodge wrote: »

My Grinds teacher is a regular on the exams commission and apparently its gonna be the F=ma, resisitivity, fusion of ice and a sonometer, optic fibres and domestic circuits for the theme question, mechanics 2 (centripetal force), thermionic emission, geiger muller counter explanation for particle physics, and thats all he told us, probably wants us to do some actual study for the rest...:rolleyes:

Cheers for that man!... Refractive index of a liquid is a possibility too i'd say. Hasn't being asked yet as far as i can remember.

What's that sonometer experiment again?

Stevieo

shanedownfall wrote: »

What's that sonometer experiment again?

There's two....frequency of a string is inversely proportional to length, and frequency of a string is proportional to the square root of tension.

shanedownfall

Know the ones. Not to bad, hopefully one comes up, thanks

MattD

Burner- wrote: »

I was looking back through the papers today. if i had to guess would say
Q1 acceleration proportional to force
Q2 Sonometer- fundamental frequency of a stretched wire with tension
Q3 Speed of sound in air
Q4 Resistivity of the material of a wire
:rolleyes:

There wont be 2 experiments from the sound section. Thats just crazy talk! Stick Fusion of Ice in there instead of speed of sound and its grand

The-Rafalution

hopefully some of these will appear so,i need a miracle to get the c but wel see

carpothepunk

Failed the mocks. Did a bit since then. Would be so chuffed to pass. I do put in effort, its just im not great at Physics. Anyone give me some pointers to just help me pass? HL.

Patrickisperfec

anyone know what experiments came up in the mocks? thanks

pocket aces

carpothepunk wrote: »

Failed the mocks. Did a bit since then. Would be so chuffed to pass. I do put in effort, its just im not great at Physics. Anyone give me some pointers to just help me pass? HL.

learn your option well- do the questions on the last 5 years on it. Do as many question 5s as you can, and if you're doing question 12, answer 3 out of the 4 parts (they're not long, and you're marked on your best 2)

powpeach

A-Bit-Dodge wrote: »

My Grinds teacher is a regular on the exams commission and apparently its gonna be the F=ma, resisitivity, fusion of ice and a sonometer, optic fibres and domestic circuits for the theme question, mechanics 2 (centripetal force), thermionic emission, geiger muller counter explanation for particle physics, and thats all he told us, probably wants us to do some actual study for the rest...:rolleyes:

good good. was he on it this year?
what will come up about circuits?

does anyone else know any people on the exams commission for physics or engineering??? if they have given u any tips please tell us!!!!?

A-Bit-Dodge

powpeach wrote: »

good good. was he on it this year?
what will come up about circuits?

does anyone else know any people on the exams commission for physics or engineering??? if they have given u any tips please tell us!!!!?

Eh no, dont think so, he does alternating years....

Circuits as in the electricity option topic? We didnt do that.. stupid particle physics, I hate it...:(
I don't know about domestic circuits to be honest.. Oh, he also said electromagnetic induction (no surprises there..) and capacitance for q.12... Know the history of some of the electron crap.. Pauli, Cockroft and Walton etc....

powpeach

sound,
ya we did particle physics also thank god. i never listened in class for electricity or did any qustions on it but im going leaving them q's out.

hgfg

Just wondering does anyone know what derivations for formulae in physics are needed?
Thanks

mrs.vandoorn

f=ma people ! good one 4 a 12 marker!!

35% in de mocks

hopefully i can blame that on laziness

HL physics deserves more points dan other subjects

Cokehead Mother

hgfg wrote: »

Just wondering does anyone know what derivations for formulae in physics are needed?
Thanks

v = u + at

s = ut + 0.5at^2

v^2 = u^2 + 2as

F = ma

v= wr

T^2 = (4.pi^2.r^3)/GM

n.lambda = dsinO

R = R_1 + R_2 (resistors in series)

1/R = 1/R_1 + 1/R_2 (resistors in parallel)

F = qvB

starkinter

hgfg wrote: »

Just wondering does anyone know what derivations for formulae in physics are needed?
Thanks

Off the top of my head, periodic time of a satellite and nλ = dsinθ for a diffraction grating are the ones which need serious learning. There are other easier ones.

edit: OK, evidently, there are loads of others. I suppose I'll learn them, so.

Decerto

theres s=ut+1/2at^2, v^2=u^2+2as and v=u+at, also f=ma from newtons second law, one with g = GM/r^2 from f=GMm/r^2 and periodic time version of tht using centripedal force = GMm/r^2, also u have to derive n(lambda)=dsin(theta) from a diagram of light being diffracted. and u also have to derive relationship between v and omega from omega = (theta)/t and (theta) = arc length(s)/radius(r), might be one about radius of particle accelerator aswell, bqvsin(theta)=centripedal force, electricty u have to derive resistors in series and parallel,

Most of them are just messing about with formulas though

Decerto

For bqv btw can u just say bil=b(q/t)l=bq(l/t)=bqv or do you have to do the whole big long written thing?

xmac1x

carpothepunk wrote: »

Failed the mocks. Did a bit since then. Would be so chuffed to pass. I do put in effort, its just im not great at Physics. Anyone give me some pointers to just help me pass? HL.

Yeah man just know some of the suggested experiments above and learn the particle and nuclear physics. Apart from that there's no substitute for a bit of hard work from now until monday!

The-Rafalution

do ye reckon it could be easier than as last year?our teacher said it might as there were so many complaints about the difficulty and failure rate last year.hopefully

jager-bomber

(Without retarded electricity)
Have a go at predicting
Q1 a proportional to f
Q2 Latent heat of fusion of ice
Q3 Sonometer
Q4 Resistance-temperature
Q5 shorts
Q6 ????
Q7
Q8
Q9
Q10
Q11
Q12
?????????????????????????????????????????? HELP

lawdeedaw

my teacher is supervisin n he said that theres a correction to q12...theres a wrong value for c in c=f(lamda)!!!!:D:D

A-Bit-Dodge

(Without retarded electricity)
Have a go at predicting
Q1 a proportional to f
Q2 Latent heat of fusion of ice
Q3 Sonometer
Q4 Resistance/resistivity
Q5 shorts
Q6 Gravitation
Q7 Light waves/spectra (again, I think...)
Q8Photo emission/thermionic
Q9not a clue... resistance/power/anything from electrostatics
Q10 option... go figure! could be anything! know the history though...
Q11theme: I reckon national grid/doppler effect (all that noise pollution decibel crap)/the eys and lens correction..
Q12 anones guess but i'd be banking on electromagnetic induction, capacitance, fibre optics v's electrical cables, modern physics??