# Physics paper 31

#### Wolfgangs

So, how was the paper?

Did you get a graph with positive or negative gradient?

#### omaaaar

Paper was overall easy but that part was just rubbish were we had too make the angle between the two strings 90

#### Harsh Poddar

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#### omaaaar

how did you get the mass then?
Don't really remember how I found it

#### David Black

Don't really remember how I found it
because a negative gradient will give a negative mass

#### Wolfgangs

Well, everyone results vary it seems XP. I got a positive gradient idk why, and I checked around two times.

#### Ahmedlool

guys was the experimant both mechanical?

experiment ****

#### Ahmedlool

or was it electrical and mechanical as people have told me it was that

#### Wolfgangs

Mechanical only, and was there a relation between the f and x? There was no relation right, as k is quite different for both

#### Ahmedlool

what about paper 32? is it gonna be mechanical only?

#### mhmalm

I got a negative gradient of -0.03 and a y-intercept of +10.2 something. I have one question - there must be variations in values for all candidates' answers, so on what basis do the examiners mark our answers? Do they grade us on basis of our method or whether our answers lie within the range they determine?

#### Wolfgangs

What about the relation in Q2? I got a big difference between the two constants k, so they are not related, right?

#### Wolfgangs

What about the constants k, what did you guys get? Did the time increase or decrease as you changed?

#### Autumngirl

What about the constants k, what did you guys get? Did the time increase or decrease as you changed?
Time decreased as x decreased. My results supported the equation as I got only 11% difference between my two values of k.