Physics 9702 p51 2017 was okay?

[Sammychip]

I messed up on the error bars, I got 0.01 but apparently it was supposed to be 5 boxes up and 5 down I did half of a small box. Sad.

 

[<--h-->]

what gradient did you get? and what variables did you get for gradient and y intercept? L or V/2 something ?

 

[Sammychip]

what gradient did you get? and what variables did you get for gradient and y intercept? L or V/2 something ?

9.13×10^-9
Is the error bar I did wrong?

 

[<--h-->]

yes but i think you will still get the marks for gradient for ecf...o.o1 was represented by 5 boxes..i didnt get this gradient

 

[petrolhead254]

9.13×10^-9
Is the error bar I did wrong?

I got 9x 10^-3 as gradient cause I saw from past papers that only if a power is stated outside then you include it like there are some past papers with grams in the graph but your not supposed to convert to kilograms

 

[Maryum7]

what gradient did you get? and what variables did you get for gradient and y intercept? L or V/2 something ?

I messed up on the error bars, I got 0.01 but apparently it was supposed to be 5 boxes up and 5 down I did half of a small box. Sad.

I got 9x 10^-3 as gradient cause I saw from past papers that only if a power is stated outside then you include it like there are some past papers with grams in the graph but your not supposed to convert to kilograms

What points did you guys include in Q1? I wrote everything I could think of but they weren't adding up to 15. I was only getting like 10 pts

 

[<--h-->]

What points did you guys include in Q1? I wrote everything I could think of but they weren't adding up to 15. I was only getting like 10 pts

yes, same here.I wrote everything I could think of.
1) I described about dependent and independent variable and how i measured them
2) I kept wooden block under the inclined slope to maintain the angle.
3) I mentioned about the graph and way to obtain g as asked in question( though i don't think i justified it correctly )
4) mentioned about repeats and average
5)relationship between the angle and velocity is satisfied if the graph is a straight line.
6) equipments to measure the velocity
7) smooth surface to prevent friction
8) factors to be kept constant
that's all i can remember though i am afraid i didnt mention much about the additional improvements.

 

[<--h-->]

I got 9x 10^-3 as gradient cause I saw from past papers that only if a power is stated outside then you include it like there are some past papers with grams in the graph but your not supposed to convert to kilograms

Are you sure about it? because i got the gradient as 9x10 ^-6

 

[petrolhead254]

yea i was quite sure cause i did a paper which had a quantity in grams on the axis but you didnt have to convert it to kilograms then i noticed that only when theres a power stated outside is when you use it but well see anyway

 

[petrolhead254]

yes, same here.I wrote everything I could think of.
1) I described about dependent and independent variable and how i measured them
2) I kept wooden block under the inclined slope to maintain the angle.
3) I mentioned about the graph and way to obtain g as asked in question( though i don't think i justified it correctly )
4) mentioned about repeats and average
5)relationship between the angle and velocity is satisfied if the graph is a straight line.
6) equipments to measure the velocity
7) smooth surface to prevent friction
8) factors to be kept constant
that's all i can remember though i am afraid i didnt mention much about the additional improvements.

i felt like i wrote excess cant remember everything that i wrote but it was alot of points

 

[Ahmed Medhat]

Hey does anyone remember the length of the wire, and how was the velocity calculated?

 

[petrolhead254]

Hey does anyone remember the length of the wire, and how was the velocity calculated?

i got it as 84 m

 

[Ahmed Medhat]

How was the velocity calculated?

 

[Ahmed Medhat]

I got 41 for the gradient so I either messed up the velocity or I messed up the gradient.

 

[Ahmed Medhat]

What was your gradient?

 

[petrolhead254]

I got 41 for the gradient so I either messed up the velocity or I messed up the gradient.

you messed up the gradient

 

[Ahmed Medhat]

My gradient was -8.65*10^-9 so my gradient is correct but how was the velocity calculated?

 

[nadeen64]

HOW WAS PAPER 41???

 

[ThePacifics]

HOW WAS PAPER 41???

terrible. this paper ws different n tough idk hw ws urs?

 

[nadeen64]

terrible. this paper ws different n tough idk hw ws urs?

same here... the attenuation question was annoying and I'm not sure of my rms values