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Physics, Chemistry and Biology: Post your doubts here!

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When it says draw a ray to the left of the normal
do we draw it on the left or right i used to think right as t says TO the left means goes to the left but i am slightly confused
 
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You're supposed to estimate the mass of the ruler. It says "The student chooses a mass M which is similar to the mass of the metre rule". You're supposed to be able to estimate the mass of a metre rule. That's why they gave such a large range
Thank you , do you think that i should do the variants ? doesn't it enough to do my region papers ?
 
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Btw everybody. This is probably not that important, but for physics paper 6, typically the first question don't forget to write down the column heading
 
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how to draw circuit diagrams in paper 6 physics? where should i place voltmeter and ammeter n stuff? :S someone please help
 
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For http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_s12_qp_62.pdf question 1d) would using a string attached to a ball bearing and comparing it to the marks on the rule be a suitable answer?

I think measure the distance between the 1st end of the meter rule and the bench , and measure the distance between the 2nd end of the meter rule and the bench , if they are = then it's horizontal , but could u check mark scheme please for it ?
 
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how to draw circuit diagrams in paper 6 physics? where should i place voltmeter and ammeter n stuff? :S someone please help

ammeters_voltmeters.jpg
 
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I think measure the distance between the 1st end of the meter rule and the bench , and measure the distance between the 2nd end of the meter rule and the bench , if they are = then it's horizontal , but could u check mark scheme please for it ?
I did that's the right answer. Was just wondering if pendulum would also work. Probably not since my answer's not in the mark scheme. Thanks :D
 
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