Physics: Post your doubts here!

[MelvinW]

And i udid my x axis in my graph with x10^-3 but i didnt do that when i calculated my gradient so like there goes my gradient mark and my y intercept :/

 

[A*****]

What was the absolute uncertainty in the protractor?

 

[A*****]

It's totally ok to do graphs and tables, etc. with pencil bqz our practical papers are not scanned...they are sent directly

 

[angryrider_56]

Btw guys....what were ur answers for gradient and Y-intercept? (i got gradient as 0.7 while my classmates got it as 0.5 and I got my Y-intercept to be 0.06 by using the formula and not the graph, hopefully, that's fine). And for your K question...i got 7.8% meaning they are related, right? and for improvement, one of my points were "2 values of K aren't enough to make a valid conclusion " and improvement was " take more than 2 values and plot a graph". Are my answers fine?

 

[angryrider_56]

What was the absolute uncertainty in the protractor?

the question asked about percentage uncertainty not absolute...my answer was exactly 5%. BTW guys is it fine if i have spelling mistakes in my errors and improvements?

 

[MelvinW]

What was the absolute uncertainty in the protractor?

I got 7.14

 

[MelvinW]

Btw guys....what were ur answers for gradient and Y-intercept? (i got gradient as 0.7 while my classmates got it as 0.5 and I got my Y-intercept to be 0.06 by using the formula and not the graph, hopefully, that's fine). And for your K question...i got 7.8% meaning they are related, right? and for improvement, one of my points were "2 values of K aren't enough to make a valid conclusion " and improvement was " take more than 2 values and plot a graph". Are my answers fine?

0.7 is a bit high....

 

[angryrider_56]

0.7 is a bit high....

damn it.....what was urs tho?

 

[angryrider_56]

0.7 is a bit high....

if u also say 0.5 am going to cry...

 

[MelvinW]

damn it.....what was urs tho?

Well minus the part where i divide my values by 5.6x10^-3 (my value (also i used cm)) i got 0.42

 

[A*****]

the question asked about percentage uncertainty not absolute...my answer was exactly 5%. BTW guys is it fine if i have spelling mistakes in my errors and improvements?

I'm asking for the absolute uncertainty to get an idea of the %age uncertainty bqz that depends on our working only if the a.u is correct...I took it as 3°, divided by 12 x 100= 25%

 

[Tauqir_hamed]

I took (2 / 13) * 100

 

[Tauqir_hamed]

Also, the questions where they said measure the length.. i wrote in the line ( 40 cm = 0.400 m ) is it fine

 

[A*****]

Well minus the part where i divide my values by 5.6x10^-3 (my value (also i used cm)) i got 0.42

I used cm but got a gradient above 80...the x axis values were very low that's why maybe

 

[A*****]

I took (2 / 13) * 100

Is 3° fine instead of 2?

 

[A*****]

Also, the questions where they said measure the length.. i wrote in the line ( 40 cm = 0.400 m ) is it fine

Yes

 

[Tauqir_hamed]

Is 3° fine instead of 2?

I guess so
In the error and improvement part, is writing " large uncertainty in the value of A " as an error and " use a thinner string " as improvement correct ?

 

[A*****]

I guess so
In the error and improvement part, is writing " large uncertainty in the value of A " as an error and " use a thinner string " as improvement correct ?

Yes correct

 

[Tauqir_hamed]

I got my gradient as 0.652 and y intercept as - 0.165

 

[angryrider_56]

Is 3° fine instead of 2?

i took my uncertainty for the protractor to be 0.5degrees (the school supplied us with a really big compass) so i took 0.5*14.5(my A) and then ANS/14.5 x 100 and got 5%