discussion of physics ppr 2 AS

[ahmed t]

another thing if i lost about 12 marks could i still get an A

 

[ahmed t]

ye SCALER VECTOR SCALER
MY Hieght was 1 m

 

[supermagic]

just wondering the skeching the area, i tot the area between curves represent loss of enery such thermal energy!
and similar question is in may/june 2002 paper 1 question24, if it's the area between the curves, there is no answer for the question so i doubt it!!

 

[supermagic]

wat were ur forces acting on the card board.
for the beta particle i wrote they are too small and negativly charged so attracted to the nucleus

oh yes i got exactly same answer as u! and i just guessed

 

[ahmed t]

the energy is the are between the curves im sure.
hey i found the wrong current out in the elecricity wen finding the voltage do u think i can still get marks for working

 

[ahmed t]

hey supermagic wat were the forces on the cardboard

 

[Hetarth]

What was ur height of the wall guys? And on the first page, did you get scalar, vector, scalar?

Yup ,yes ,oh yeah!!!!

 

[Hetarth]

How many marks ws the full electricity question for ??

 

[ahmed t]

if i get a b in and a b in p3 but A's in p4,5,1 could i still get an A in the whole A level

 

[ahmed t]

the electricity maybe 8 marks

 

[Kz99]

there was no need in finding the current in electricity questions, potential divider formula did all the work!

 

[supermagic]

hey supermagic wat were the forces on the cardboard

moment and torque i just guessed

 

[ahmed t]

there was no need in finding the current in electricity questions, potential divider formula did all the work!

ok wat about the force acting on the cardboard i wrote restoring force which is wrong
and force of the rod which was upward

 

[Hetarth]

Umm ya u wud still get an A .......

 

[Kz99]

well the question didn't say it was hanging on a frictionless wooden rod, so i wrote friction and the other force was the reaction force,Am not sure if these are the correct forces though.

 

[ahmed t]

well the question didn't say it was hanging on a frictionless wooden rod, so i wrote friction and the other force was the reaction force,Am not sure if these are the correct forces though.

sorry for the bother but 2 last question s
wher will the card stop and why
and why not use the calibrated voltmeter i said cause at 0 deg the volts is more than 10 and to change voltage significantly needs a big temp differince

 

[Kz99]

I just wrote the opposite way, in which it was held, because the line of action of the rod must pass through the centre of gravity, and am not sure about this answer also, about the electricity, I didn't understand the question , I just wrote it would disturb the operation of the thermistor..i dunno

 

[supermagic]

i actually worked out max voltage and minimum voltage ( max: 4.3v min: 3. sth,)
so the max voltage is no more than 5 therefore if we use 5 voltmeter instead of 10 voltmeter, we could measure more specifialy.
i am not sure tho i just guessed it wasn easy paper, kinda tricky

 

[Raptor]

Ok guys for ratio question of intensity of waves

i just did (amplitude ^2)/(other amplitude ^2)

is this correct? Becasue intensity is proportional to a^2

 

[Kz99]

Ok guys for ratio question of intensity of waves

i just did (amplitude ^2)/(other amplitude ^2)

is this correct? Becasue intensity is proportional to a^2

Yes.