how was physics practical 34?

[Ikram Khaliq]

my k was 540 and 480 i think... my m was 2.7 and c was -3.xx

did your velocity increase or decrease when you decreased the length?

 

[syed1995]

did your velocity increase or decrease when you decreased the length?

increase I think.. dun remember at all

 

[Ikram Khaliq]

increase I think.. dun remember at all

my values decreased.
long tube- 70cms-1
short tube- 50cms-1

 

[syed1995]

my values decreased.
long tube- 70cms-1
short tube- 50cms-1

i don't remember at all.... The relationship was v^2=kl right? what % error were you getting in last part?

 

[Ikram Khaliq]

I got 24%. many of my friends were getting around 33% though.

 

[syed1995]

I got 24%. many of my friends were getting around 33% though.

hmm.. well it all depends on the tube which was given... my lengths were 10.1 and 20.1cm.. and diameter 0.27.

Yours will surely be different.

 

[Ikram Khaliq]

hmm.. well it all depends on the tube which was given... my lengths were 10.1 and 20.1cm.. and diameter 0.27.

Yours will surely be different.

Lol. lengths were exactly the same! the diameter was 0.375cm though

 

[saadgujjar]

i got uncretaiinity more than 100 % is it possible in the value of k

 

[Ahmed Khalel]

Okay so my intercept was -4.87 something, and gradient was 3.63. Hope you all got the same thing
What were the values of k?

i got the same values , but my k values were btw 500 and 900 approx.

 

[Ahmed Khalel]

hmm.. well it all depends on the tube which was given... my lengths were 10.1 and 20.1cm.. and diameter 0.27.

Yours will surely be different.

i got 0.38 for the diameter and 1.3% for the uncertainity

 

[Ikram Khaliq]

i got uncretaiinity more than 100 % is it possible in the value of k

i think no.

 

[A star]

no u cannot get more then 100 percent i got a high value but not this high :O

 

[saadgujjar]

no u cannot get more then 100 percent i got a high value but not this high :O

i did that by this formula (difference betwwen k values /average of k value )x 100
MY K VALUES WERE 1870 AND 419

 

[A star]

i did that by this formula (difference betwwen k values /average of k value )x 100
MY K VALUES WERE 1870 AND 419

then your k values are in eror mayb :/

 

[saadgujjar]

then your k values are in eror mayb :/

This mean my time was in correct then how many marks will i los
How to measre diameter in 1st part
What wil b gt?

 

[A star]

This mean my time was in correct then how many marks will i los
How to measre diameter in 1st part
What wil b gt?

3 max i guess but ask Uzib he seems more rehersed over it

 

[Mahad Imran Gujjar]

it was easy!!!!!!!!!!!!!!!!!!!!11

 

[syed1995]

i did that by this formula (difference betwwen k values /average of k value )x 100
MY K VALUES WERE 1870 AND 419

1870-419/1870 *100 = 77.6% error.. how were you getting over 100% of an error?

 

[saadgujjar]

1870-419/1870 *100 = 77.6% error.. how were you getting over 100% of an error?

I took avrg of k values

 

[A star]

1870-419/1870 *100 = 77.6% error.. how were you getting over 100% of an error?

hmm true