How was physics paper 33

[PPanDDa]

I did the first experiment for three times because my graph for my first set of result was terrifying. I could not see clear pattern in the graph.

 

[angelicsuccubus]

I didn't get the relation correct. I got 38%. And in graph, as 1/m increased h0-h/m decreased ><

how do you check the percentage to know if the relation is true or not?

 

[Scafalon40]

The gradient had to be positive. Confirmed. Mine was 0.172 and I used grams and metres. But then again, I might be wrong.

Mine was 0.125, but I got 2 out of 5 point which were extremely anomalous, so I left those points out altogether!
Hence I drew the graph with the other three points
My % difference between the k values was 43% and the values were 0.1 and 0.57 respectively.

 

[Scafalon40]

I did the first experiment for three times because my graph for my first set of result was terrifying. I could not see clear pattern in the graph.

The same happened with me lol: read by previous post

 

[mujtabashahnawaz]

how do you check the percentage to know if the relation is true or not?

bigger valur of k-smaller value of k / bigger value of k * 100

 

[mujtabashahnawaz]

if %age< 20% then relationship is correct!

 

[Scafalon40]

How many of you guys had that "no clear relationship found" problem with Q1 i.e more than one point was anomalous.
And very anomalous, mind you.

 

[Scafalon40]

if %age< 20% then relationship is correct!

You decide that limit yourself.
For this experiment 20% would have been suitable, so I went with that

 

[mujtabashahnawaz]

How many of you guys had that "no clear relationship found" problem with Q1 i.e more than one point was anomalous.
And very anomalous, mind you.

1 point was anomolous

 

[Scafalon40]

1 point was anomolous

Damn, I had two horrible point...
Why did CIE set such a stupid question; they could have given something on electricity, we would have gotten perfect graphs!

 

[mujtabashahnawaz]

Damn, I had two horrible point...
Why did CIE set such a stupid question; they could have given something on electricity, we would have gotten perfect graphs!

That will only cost u 1 mark

 

[Scafalon40]

That will only cost u 1 mark

I would be very surprised that it would: my raw values were very good, it's the calculation part where this mishap happened. I got two same y values for two different x values.

 

[mujtabashahnawaz]

I did everything right and even checked it 3 times, but still i got a negative gradient!

 

[Scafalon40]

I did everything right and even checked it 3 times, but still i got a negative gradient!

I did everything right and checked those anomalous values about 6 times, they were still anomalous!

 

[BHS17]

I did everything right and even checked it 3 times, but still i got a negative gradient!

The gradient had to be negative...... In my centre everyone got a decreasing graph.

 

[Haroon05]

I got the graph negative but the gradient positive, how in the world is that even possible :/

 

[fathimaash]

bigger valur of k-smaller value of k / bigger value of k * 100

noo its (bigger k - smallerk) divde by average of da 2 ks into 1oo...

 

[Mua'dh sk]

i dont know mi gradient was 0.019 and intercept was 6.4^-4 is it correct or wrong ?????????
pleeses tell me

 

[ahmedjaved171717171]

How was physics paper 33

was really easy expecting an A atleast

 

[ahmedjaved171717171]

My teacher told me that there is no specific answer to the relationship question. If the difference between your k values is < 20% and you wrote that there is no direct relationship, then you'll get full marks and vice versa. And I think the k values should have been given to 3 s.f.

Actually if its less than twenty percent then there is a direct relationship