Physics AS practical 3rd Nov

[heemvi]

Thanks u vry much pravin_5 for the advices..
wel i tried 2 chk mny pprs n thr mark sheme...
n it did hlp a lot
nly 1 question.
can sm1 hlp me abt the numbr of significant fig of a calculatd data where log hs bin used???
its quite cnfusin.(am referin 2 both practical n data analysis)

[raunaqbhatia]

ya and how to use the micrometer screw gage and verniar calliper

[astarmathsandphysics]

http://biology.clc.uc.edu/Fankhauser/Labs/Anatomy_&_Physiology/A&P203/Circulatory_System/Vernier_scale/Vernier_Scales.htm

[falafail]

I will try and make a page for my website but wont be able to do it until tomorrow.
In general the unvertainy is equal to the smallest interval on the scale.

.. i thought it was half of the smallest interval?

[Sorceres]

Thanks u vry much pravin_5 for the advices..
wel i tried 2 chk mny pprs n thr mark sheme...
n it did hlp a lot
nly 1 question.
can sm1 hlp me abt the numbr of significant fig of a calculatd data where log hs bin used???
its quite cnfusin.(am referin 2 both practical n data analysis)

for calculated data its normally 3sf.  in general for calculated data, u use the sig fig of the raw data..

[Sorceres]

.. i thought it was half of the smallest interval?

its half the smallest interval but then for example in metre rule, u have to add both uncertainties together, the one at d beginning and the end.. so 0.05cm+0.05cm= 0.1cm

[MaNi_DaDuDe]

How do you make an experiment with clamps and stuff more accurate/more reliable?

How do you measure an angle with a (HUGE) protactor better?

Help please, thanks.

[raunaqbhatia]

mine 2

[falafail]

How do you measure an angle with a (HUGE) protactor better?

hmm, you could check your measurement with a smaller protractor?

[MaNi_DaDuDe]

hmm, you could check your measurement with a smaller protractor?

DUDE, the apparatus is huge.

We need a big protactor to measure the angle.

[falafail]

DUDE, the apparatus is huge.

We need a big protactor to measure the angle.

yeah, i know. i saw it.
i measured the angle using my protractor though, and the teacher said it's okay as long as you write that you CHECKED the angle with a small protractor XD

[MaNi_DaDuDe]

yeah, i know. i saw it.
i measured the angle using my protractor though, and the teacher said it's okay as long as you write that you CHECKED the angle with a small protractor XD

Whoa, how the f*** ?

You put the middle of your little protactor on the middle of the string and did what..? :S

[falafail]

Whoa, how the f*** ?

You put the middle of your little protactor on the middle of the string and did what..? :S

you align it with the horizontal string, and just measure the angle it makes with the other one. 

[MaNi_DaDuDe]

you align it with the horizontal string, and just measure the angle it makes with the other one. 

That's for the newton meter one, yeah?

By the way, the other exp. 08 one, we have to measure the angle and then do 180 - the angle right?

[falafail]

That's for the newton meter one, yeah?

By the way, the other exp. 08 one, we have to measure the angle and then do 180 - the angle right?

ah, i don't know. i haven't seen it.
post the question?