How did physics 33 go??

[dishaave]

please tell me the value of L?
they asked the difference between crocodile clip and the place where it was marked F ? right

 

[kitkat <3 :P]

._. WHAT :O but in our practical F was a wire :O

 

[Silverglitter]

I used mA and cm

You're right we can take it in cm or m. I took cm too!!

 

[Silverglitter]

please tell me the value of L?
they asked the difference between crocodile clip and the place where it was marked F ? right

F was a wire that we had to attach to the ruler wire perpendicularly.

 

[Afzal1]

what was the distance u got for the (x) in the second experiment?
can anyone tell plzz

 

[Princess Raven]

what was the distance u got for the (x) in the second experiment?
can anyone tell plzz

X is gonna be different for each of us lol but I got 0.745m for the first experiment then U have to reduce it by 5 cm or something like that

 

[Kamihus]

X is gonna be different for each of us lol but I got 0.745m for the first experiment then U have to reduce it by 5 cm or something like that

And Y had to increase when X was decreased by about 5 cm.

 

[Afzal1]

ok....
and the limitations what did u wite

 

[Afzal1]

And Y had to increase when X was decreased by about 5 cm.

ya... that was fine though

 

[Afzal1]

One was two readings are not enough

thats common man... other thatn that...
welli wrote osicillations die out quickly
curved track...

 

[Kamihus]

thats common man... other thatn that...
welli wrote osicillations die out quickly
curved track...

Distance was difficult to measure due to curved track
Difficult to judge when one oscillation is completed
Applying a force on the object

 

[danial 234]

ok....
and the limitations what did u wite

i couldnt get enough time to complete this part

 

[danial 234]

NOOOOOOOOOOOOOOOOO WTF I JUST REALISED I FILLED IN MY TABLES IN PENCIL!!! WTF!!!!!!!!!!!!!

no.. it is fine.. i also used the pencil...
HB pencil and black pen dint have much difference in soft copy..

 

[hellblender]

oh thank God... All in Allah's hands

no.. it is fine.. i also used the pencil...
HB pencil and black pen dint have much difference in soft copy..

 

[Aina]

mine gradient was 3.6*10^-4 and y intrcpt was 31.smthng
and i took the reading in A and m.

 

[farhan141]

mine gradient was 3.6*10^-4 and y intrcpt was 31.smthng
and i took the reading in A and m.

Yes I got 3.6*10^-3 because I took it in cm and mA :/

please tell me the value of L?
they asked the difference between crocodile clip and the place where it was marked F ? right

37.5cm if I remember correctly.

 

[xtremeuser12345]

can someone who if only is sure tell me something please? in the limitations/improvements question i wrote:
1)Parallax error "with nothing else to add"
1)look perpendicularly with one eye closed.
2)difficult to release marble/sphere without adding external forces.
2)use mechanical method.
3)difficulty in timing the oscillation of the ball with the stop watch due to the human's reaction time.
3)use of motion sensor connected to a timer.
4)when measuring the height,the ruler may not be perpendicular to the bench hence inaccurate reading.
4)use of set square to ensure its perpendicular.
please tell me how strict they will be when correcting such answers and how many marks i can expect.i already wrote the table in pencil and they may subtract a marks or two for that.
i got the gradient -10.5 and the y-intercept 19 or somewhere there.but i forgot to provide units for the gradient and y-intrcept which i believe will qlso cost me 1/2 marks.
sorry for making this a long but i wrote in the comment on ur k answer:
"my answers proves of the relationship and the values i got for k arent completely exact probably due to uncertainities in the experiment however 2 values arent enough a graph must be plotted and the gradient must be taken." how many marks am i gonna get for this?

 

[Jassim]

Error/improvement
1. Two readings not enough for a valid conclusion/Take more readings and plot a graph.
2. Force applied on ball when released/use an electromagnet release clamp so ball moves under the force of its own weight.
3. Difficulty in judging ending of one oscillation of the ball (or different wording)/Use a video camera with slow motion playback and a data logger.

These 3 will score you 6 solid marks. But even if the error or improvement of any one point is wrong, you will get a zero mark, not one mark. \
Anything with parallax error or HRTE only will get you no marks. You also have to explain BOTH the error AND the improvement for two marks.
As for the last point, I cannot confirm what would be accepted. But I know the above should. Hope you guys did well.

 

[Kamihus]

Error/improvement
1. Two readings not enough for a valid conclusion/Take more readings and plot a graph.
2. Force applied on ball when released/use an electromagnet release clamp so ball moves under the force of its own weight.
3. Difficulty in judging ending of one oscillation of the ball (or different wording)/Use a video camera with slow motion playback and a data logger.

These 3 will score you 6 solid marks. But even if the error or improvement of any one point is wrong, you will get a zero mark, not one mark. \
Anything with parallax error or HRTE only will get you no marks. You also have to explain BOTH the error AND the improvement for two marks.
As for the last point, I cannot confirm what would be accepted. But I know the above should. Hope you guys did well.

Could difficulty in measuring the distance of y due to the curved track be one of the reasons?

 

[WaqarAhmedJamali]

what is expected grade threshold