IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => IGCSE/ GCSE => Sciences => Topic started by: holtadit on February 28, 2010, 03:50:54 pm

Title: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: holtadit on February 28, 2010, 03:50:54 pm

look at question 1 PHYSICS PAPER 3 2nd variant


How on earth do you measure the amplitude of oscillation ??? How could can CIE ask such a question when we have never done this before ?

What is the underlying concept ??


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The new pattern in PAPER 3 is to always ask something experimental.

SO please tell me a list of experiments/ experimental concepts that I should be aware of for BOTH paper 3 & 6

Title: Re: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: holtadit on February 28, 2010, 04:23:15 pm

bumping ... look up

Title: Re: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: astarmathsandphysics on February 28, 2010, 05:53:14 pm

Will look at this when I get home.

Title: Re: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: holtadit on February 28, 2010, 05:56:56 pm

thanks man

Title: Re: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: astarmathsandphysics on March 01, 2010, 08:43:21 am

I cant' find the paper. Can you post the question or the link to the paper?

Title: Re: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: holtadit on March 01, 2010, 10:50:13 am

Attached with MS

Title: Re: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: astarmathsandphysics on March 01, 2010, 11:41:28 am

Thanks. I have few things to do then will do this

Title: Re: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: astarmathsandphysics on March 01, 2010, 11:56:03 am

I think you should measure the angle between the vertical to the fixed point and B.
Do this with a large protractor fixed to a board behind the swinging weight.
The weight will be moving v slowly at the endpoints and should be easy to measure.

Title: Re: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: holtadit on March 04, 2010, 05:50:20 am

Im sorry but dont understand what that has to do with the amplitude of oscilltion. Could u please explain WHAT amplitude of oscillation is







I thought you would measure the distance between the fixed point and A. Is nt amplitude the maximum displacement ?

Title: Re: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: astarmathsandphysics on March 04, 2010, 06:42:06 am

It is

Title: Re: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: holtadit on March 04, 2010, 06:54:00 am

But what is the amplitude of oscillation ?

Title: Re: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: astarmathsandphysics on March 04, 2010, 08:21:11 am

I did will answer when I get up.

Title: Re: Physics - 2009 winter paper doubt PLEASE PLEASE HELP !!!
Post by: astarmathsandphysics on March 04, 2010, 08:34:53 am

It is the largest distance from the centre or rest or hanging point
you can also callit an angle in the case of a pendulum