Physics practical tips

[user]

I never did it!

see what the er says
well anyway...we'll carry out this whole procedure IF we have time in the end otherwise it's better that we lose one mark [may be] and solve the rest of the paper

 

[smzimran]

see what the er says
well anyway...we'll carry out this whole procedure IF we have time in the end otherwise it's better that we lose one mark [may be] and solve the rest of the paper

Hmm!


But the m.s never said anything abt deducting marks if the candidate hasnt done it!
So they must award marks

 

[nafis shahRiyar]

Guys i have a question. The points we plot on the graph, should they be crosses or encircled dots or perhaps both are acceptable?

CIE prefers encircled dots...it gives a better impression to the graph than just putting crosses..

 

[fathimaash]

iFuz
its just a note on uncertanity dis is all i hv

 

[iFuz]

iFuz
its just a note on uncertanity dis is all i hv

Thankyouh

 

[fathimaash]

Thankyouh

ur welcum

 

[iFuz]

ur welcum

 

[Shaharyar Qureshi]

Here you go:

exellent way to describe experiments. Plz clearify why human reaction time is considered as systematic error and why?

 

[2345qwer]

WOW!! i didn't know more than half of what you've written. Thanks a million!!!

 

[Mr.Sir]

One major confusion am dealing with in P3 is if in the question paper the values are given in 'cm' should we continue the rest of the calculations and draw the graph by converting the values into 'm' or leave it to 'cm'?

 

[Notorious Angel]

could anyone please tell me about the possible causes of limitations and their suggested improvements, in general (paper 3)?​

URGENT!! ​

 

[Hubsy16]

Hey how many of you are appearing for the A-level chemistry practical of the variant 33?
Anyone has any hints?

 

[hela]

Thank you ! this was very helpful but can you put an animation of the micrometer screw gauge as well please.. ? it will really help

 

[Troubled soul]

i dont get uncertainty.. can anyone please give an example with the all the readings for the meter rule, the calliper and other intruments..?

 

[Eng Minhal]

Do you know any good physics teacher in karachi? I have heard Naushad is nice but does he teaches in defence?

 

[Joker101]

Guys i always lost marks in the question whre they ask for 4 errors and 4 improvements. How can i improve on that side?

Thanks

 

[Zarif009]

Whats the absolute uncertainty of a vernier caliper?

 

[Atiqa asl]

2 basic inprovement r repeat experiment plot a grape reduces inaccuracy , if ossiclation r then use of motion sensor to find when 1 ossilation complte basic error r few values to reach the conclusion 2..few values leads to more inaccuracy 3..if ossilation then ossilaction dies away and difficult to determine when one ossilation is completed these r basic ones and the rest depend upon the experiment

 

[Atiqa asl]

Mostly the caliper r of .05 mm or.02mm so the error depend upon the division
If 1 division is .05mm then error is .05/10 (10 becuz 1cm converted to mm
If per division is .02 then .02/10

 

[FRENZYAMU]

if i connect the power supply wrong to the battery (not the cell one, the box one) will i get BOMBED ????? urgent !