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Physics: Post your doubts here!

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Question?
Answer is attached too... Just wanted to ask do we write the uncertainty in such part of the answers... Like if I get .22 mm diameter... Can I write the answer as .22 +- .01? Is that "answer + uncertainty" or "range" given in the marking scheme as .19+- .02 mm? And also what does that SV mean in the marking scheme?
View attachment 3412

Marking Scheme!
View attachment 3413
 
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5,874
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Question?
Answer is attached too... Just wanted to ask do we write the uncertainty in such part of the answers... Like if I get .22 mm diameter... Can I write the answer as .22 +- .01? Is that "answer + uncertainty" or "range" given in the marking scheme as .19+- .02 mm? And also what does that SV mean in the marking scheme?

ffaadyy said:
"You need to write the uncertainty every time you read a value off some scale etc. About the '.22 +- .01' part, that's 'answer + the uncertainty'. And the smallest possible reading that you can read on a micrometer screw gauge is .01mm so I think you can write the uncertainty as .01mm. I wonder why they've mentioned '.02mm' as the uncertainty :unsure: Lastly, that 'SV' might stand for similar value or something like that but I am not really sure about it.
 
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Can anyone tell me from where can I get Physics AL Old Past papers before 2001?!
Thanks in Advance :)
 
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Assalamolaikum, can you tell me how to solve Qno. 13 and 14 of paper 1 of June 2005? I also need help with Q no. 15 of paper 1 of May/june 2006, Qno. 7, 10 and 13 of paper 1 of May/June 2007. Can you answer as soon as possible? My paper is due in two days. Thanks :)
 
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I also need help regarding graphs of kinematics in AS level. Can you post all of those related to the syllabus?
 
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it can be .02 my sir said it ranges from .01 to .03
but its much better to write .01
 
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