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    Physics P1 questions! HELP!

    THanks for the replies, but I still don't get what the light qs means! I thought the range of of wavelengths for visible light is from 400nm to 700nm. what do they mean by "in one metre" ?
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    Physics P1 questions! HELP!

    http://www.xtremepapers.me/CIE/Internat ... 5_qp_1.pdf Number 24: Can someone please tell me what the question is asking us?? I don't get the QUESTION! :shock: Number 27 : I don't get how the answer is C ?? I got the wavelength as 15mm and the speed of microwaves = speed of light!? I chose...
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    How was the Physics P21?

    Kinectic Theory assumptions = chemistry!
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    How was the Physics P21?

    Increase maximum weight was to move the pivot towards the "A" side, thus increasing the moment of the 70N force and allowing you to put on a maximum weight! I drew ripple tanks and labeled the components. btw, what was the advantage of the bulb being kept in the 2nd circuit config, rather than...
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    How was the Physics P21?

    It was with water waves right?? In the case of water waves, the only example I've seen is with a ripple tank, so I don't know! Yeah, I hope it's a straight line aswell! The last qs, I just drew two lines for the 1st part,to indicate two places where constructive interference occurs (that's the...
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    chem mcq...

    This is messed up!! Anyone care to explain?
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    How was the Physics P21?

    apparently, one of my friends had the time to plot some other points, and it turned out to be a curve!? yeah, i think you had to, since thats the only way to demonstrate interference with water waves!
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    How was the Physics P21?

    yeah, and apparently the 1st graph was a downward cure( i drew a straight line between the points! :( ), and the next one was an upward cure! btw what can we use to measure the length!?? I wrote metre rule, even though the length was 1.75m and the last page question (draw the lines on the...
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    How was the Physics P21?

    That was a LONG uncertainty question! yeah, the next page, I got the same values as on the 1st page! : 2A and 0.67A
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    How was the Physics P21?

    i got 0.67 i think for the minimum on page 1, then the next page i got the same values again!?
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    How was the Physics P21?

    Nah, it's cause the i didnt have time to think for those last questions in each question! It's a maximum, so hopefully I'll loose less than that!
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    How was the Physics P21?

    I'm probably gonna loose MAX 20 marks! an A's still possible hopefully! "/
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    How was the Physics P21?

    Time was the problem!!! freaking 1 hour! :/
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    Paper 21 As Physics

    fingers crossed!
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    Phase difference waves AS!

    so basically they are just 2 of the same waves, travelling at the same speed, but just starrted off at different times right!?
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    Phase difference waves AS!

    To compare the phase difference between two waves, the waves have to have the same frequency and wavelength right???! (i'm referring to what we need for AS-level, not wikipedia stuff!)
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    Phy AS HELP!

    Thanks for the diagram and all, but my qs is: how is the TOTAL e in number 2, 0.5e ? Isn't the extension in EACH spring 0.5e ? That would give 0.5e + 0.5e = e
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    Phy AS HELP!

    thanks, but i don't really get it! :/ I thought each spring extends by 0.5e, so the TOTAL extension is 0.5e + 0.5e ? Am I interpreting the question wrong?
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    Phy AS HELP!

    http://www.xtremepapers.me/CIE/Internat ... 9_qp_2.pdf Varient 1. QUESTION 4(b) What i dont get is how is it 0.5e for the second arrangement! Doesnt each spring extend by 0.5e? Since they are asking for the TOTAL extension, don't we add them?
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    Physics Momentum AS QS! Help!

    But it doesnt mention magnitude!? Is -1.33 right!??
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