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I understood it til all the numbers changed to letters. If you are going to stray outside of the syllabus and talk about flux trapping or quantum locking, make sure you cover what is in the syllabus first!

No, they do not contradict. In the second equation, GM is constant, therefore v proportional to 1/√r First equation, T is also variable, so we cannot say that v is directly proportional to r, but you could say v is directly proportional to r/T

Another student has joined the Tuesday class, making that class full. Still 3 spaces in the Saturday class.

Some stats off BoS (band cut offs and whatnot) have come up regularly in professional development seminars which I have attended. I encourage my students to use BoS. I don't see any difference in memorising an essay off here or an essay which your $100/hr tutor wrote for you

Turns out I had a Band 1 moment. The answer is correct as it stands. My bad!

Can u pls PM me ur working! I honestly can't see what I have done wrong!

Another thing, Upon registering, it caused the Chrome browser on my ipad to crash, but for some reason, worked fine with Safari. I like the tool. Useful for students and instant feedback is always good. Would be cool if you had a leaderboard :) I would so be number 1. Hahaha

Hmmmmmm... Now I am not sure! Maybe I had an error in my working?! Did you convert the 6cm into metres? That's the only way I can see I^2 being out by a factor of 100

Yay! I got 20/20 LoL. Check your answer to Q9 (parallel current carrying conductors) though.. I don't think the right answer should be what it is currently, I get it smaller by a factor of 10.

Eddy currents arise due to Lenz/Faraday (change in flux) and oppose motion of conductor etc.., currents in a superconductor to not arise due to this and do not oppose motion of the conductor, they arise due to the Meissner Effect. Just term them 'current loops' The whole 'explain why a magnet...

Classes have begun! Still plenty of space in my Saturday class :) If you are an able student striving for that High Band 5 - Band 6, please contact me and let me help you get there! You are most welcome to try out the class and pay weekly before you commit to term payments.

re: HSC Physics Marathon Archive Mount Everest is the worlds tallest mountain, however, it is not the point on the Earths surface at which acceleration due to gravity is the lowest. Explain.

re: HSC Physics Marathon Archive Careful! Im pretty sure Mercury itself is 4.2K :)

re: HSC Physics Marathon Archive Syllabus dot point: process information to identify some of the metals, metal alloys and compounds that have been identified as exhibiting the property of superconductivity and their critical temperatures They could ask you to identify the name, type and...

re: HSC Physics Marathon Archive Identify a metal, metal alloy and ceramic superconductor, their superconducting type, their chemical formulae and the temperature at which they become superconducting. Present your answer in an appropriate table. This is my dark horse for a 3-4 mark easy...

Yep, 5020 is correct :) 15 of my 41 got it correct, most of the others fell for the tricky trickster trick :)

Here is my HSC Trial Examination for 2013. Will put up some answers and the feedback which I gave my guys soonish, but give it a go without the answers first :) I made it easier than usual, to ensure my guys and girls were confident! Marks still ranged from 6% - 90%, average being around 46%...

In2 Physics is my personal fav

Last bump before classes start :) Still space :)

re: HSC Physics Marathon Archive ^^ so many students get these types of questions incorrect!!