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Physics: Post your doubts here!
If I remember correctly, we got like 5 or 6 electricity questions. -
Physics 12 GT
Weird paper, very lengthy, and short time to complete. Paper wasn't smooth with me :/ It had some tricky questions and barely any repeated questions. Seriously! What's up with CIE these days xD What have we done to them? And these are the new examiners xD good luck to AS students next year, you... -
Physics: Post your doubts here!
Damn, just did Paper 12 and there were few questions repeated, I'm gonna honestly say this paper wasn't smooth with me :/ It wasn't easy and wasn't hard. Anyways, good luck all! -
Physics P-34 GT.
Hahahah I already know that, just asking if someone else experienced this too -
Physics P-34 GT.
Was a nice and smooth paper :) But did anyone get trolled in Experiment 2? The balls rarely got stuck to the sticky wood :/ I mean, like I had to hit release the one on the ramp 10 times for them to finally stick xD -
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Physics: Post your doubts here!
Just did Physcis AS paper 22. Was great and a smooth paper :D although Q 6 was tough. -
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Physics: Post your doubts here!
It's a pattern, Compression Rarefaction Compression Rarefaction.... Each heap is in the pattern of C R C R C R A wavelength is from C to C or from R to R. In this case, the 0.39 m distance of 6 heaps is 2.5 lambda. Try it on your figure -
Physics: Post your doubts here!
Hey, for part b) This is the key for this question: For minima to occur: Path difference= 0.5Lambda, 1.5 Lambda. 2.5 Lambda and so on... If you look at the figure, you'll see that it's a right angled triangle, use paythagors theorem. You'll get S2M= 128 cm Path diff= 128 - 100= 28 cm Your... -
Physics: Post your doubts here!
Hello there, for B I) We know that there is a stationary wave in that tube. At antinodes which are maximum displacement, the wave pushes the heaps apart. At nodes which are minimum displacement, the heaps are formed This forms the dust heaps. For B Ii) Look at the figure, you'll see that the... -
Physics: Post your doubts here!
Hello there, first we know that 1 Wavelength = 360 degrees, look at the graph, you'll see that 1 wavelength is 8 blocks. Blocks between A and B are 3 blocks. Cross multiply, 360-----> 8 blocks ?----------> 3 blocks You'll get phase difference between A and B is 135 degrees -
Physics: Post your doubts here!
Up to you, if you're too lazy, you can rely on logic :D -
Physics: Post your doubts here!
Hello, for Q5 b I, Anti nodes are the points where there is maximum displacement of the wave, in this case, they're three antinodes. Nodes are the points where there is zero displacement, in this case, they're 4 nodes, including 2 nodes at P and Q. For Ii) look at Wave PQ carefully, you'll see... -
Physics: Post your doubts here!
Hello for the ripple tank question 5 c, They asked us to draw and explain, you need to draw the ripple tank and label, you need to show a light source and label it, and draw a screen and also you need to tell them that you use a video camera to observe the waves. For 5b, if you look at the... -
A-Level Physics Definitions and other things you need to know
Very nice :) Though for Hookes Law, we have to say Directly Proportional otherwise we don't get the mark :D -
Physics: Post your doubts here!
Hello there, for Q5 b(ii), if you look at the wave from P to Q, youll see that its 1.5Lambda, in part a)i), you already found Lambda, so subsititute youll get Length of PQ= 1.5 x 0.8= 1.2 m -
Physics: Post your doubts here!
Which type of scattering experiment? What do you mean? lol -
Physics: Post your doubts here!
Hello there, for Q20, it is given that a train has mass of 1200 tonnes, which is 1.2 x 10^6 kg. It is given that u=0 and v=75m/s We know that Work=Deltra KE So work= 1/2 m x v^2= 1/2(1.2 x 10^6) x 75^2= 3.4 x 10^9 J For Q29, It is given that Speed=330m/s We can see that 4 heaps of dust are 0.30... -