Physics Practical/33 Info confirmation required

[yubakkk]

if moment q. is in q.2 then what will be the errors?

 

[Newbie]

SOME HELP AND TIPS FOR PEOPLE WHO ARE GOING TO GIVE PHYSICS PRACTICAL

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[ninjas4life]

limitations and suggestions for moments:

-two readings not enough to draw conclusion
-difficult to balance WITH REASON (eg.g. unstable becoz of afans/draughts)
-difficult to judge when wooden strip horizontal/parallel(to bench)
-difficult of keeping x constant/weights move
-difficult to measure angle BECAUSE hard to judge vertical/movement of hand
-friction betwwn nail and strip
-mass (values) not accurate

suggestions
-take more readings AND plot a graph AND compare k values
-switch off fans/close windows
-METHOD of ensuring strip horizontal/parallel to bench (e.g. DETAILED use of set square)
-METHOD of fixing constant to rule(e.g. tape, glue)
-use clamped ruler/clamped protractor
-use lubricant/method of reducing friction
-use balance/method of weighing masses

these are a few for moments from past papers.. hope this helps!

 

[naelmizan1994]

Thnx very much for the tips on moments!

 

[RafaySid]

Hey guys check the May 2010 P31 Q2. It's similar to the cylinder/oscillation one we're been hearing of supposedly.
http://www.xtremepapers.me/CIE/Internat ... _qp_31.pdf

 

[yubakkk]

hey any one make sure which q. is at q.1 and which is at q.2?
if moment.is in q.2 what are other possible errors???
plz help till 3.0 hrs before exam

 

[Tahaali54]

Type of Question on Forces/Momentum

What type question can be on forces & momentum
lyk: what can they ask?? what would be the apparatus?
Everyone talking on oscillations only, any help on this One PLZ..???

 

[SMAMN26]

My teacher told me that electricity(LDR/LED) is coming in P33 in Q.1 :no:

 

[robotic94]

question if they have given us a metre rule and if we take readings in cm then we take LC as 0.1 right !?!

otherwise if reading is in metres only then we take LC as 1!
LC of time(stopwatch ) is 2-8
LC of moving objects lenght is 0.2 - 0.8
LC of screwgauge and vernier is given on the instrument!

plz help me out in LCs!!
thankyou

 

[RafaySid]

Sorry its kind of late but go through momentum and oscillation section of this. Really helpful
http://www.brain.net.pk/~hivicky/cie/a- ... _31+32.pdf

 

[Sweet_angel]

even i think q.1 is oscillations and q.2 is about moments......

 

[extrauni]

sorry this is late but can somebody tell how to find centre of gravity..... ive heard there is a question where you are required to do so ....

 

[hassam]

well...tell me wats uncertainity in a time measurement..and wats uncertainity in vernier reading and micrometer screw gauge reading

 

[hassam]

http://www.tutorvista.co.uk/content/phy ... ndulum.php

 

[extrauni]

in time 0.2-0.4 sec
vernier caliper .05
micrometer .01

 

[psycoist14]

my teacher told be this morning that we're gonna have electricity....a supervisor.. hope it comes
will be great for me.. i hate mechanics

 

[hassam]

wat type of expt....

 

[SMAMN26]

my teacher told be this morning that we're gonna have electricity....a supervisor.. hope it comes
will be great for me.. i hate mechanics

yah my teacher told the same!

 

[zulqarnain]

wat about 34??