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Yeah mate, that is fine :) fuck oath ;)

Yep! Send them through and i'll grade it for you lol thx :) Shoulda seen the prelim end of year examination, lol.. A couple of my students nearly got kicked out cuz they were laughing at the questions, lol.

Well, I didn't particularly like any of the independent trial papers, so I wrote my own. I got some questions from other past papers, some questions out of my head. Overall, I think the exam was fair, harder than any HSC exam, but so it should be. Have a look at my paper and tell me what you...

a) P = IV 2400W = 240I I = 2400/240 I = 10A b) E = Pt E = 2400*5*60*60 E = 43,200,000J E = 43.2MJ c) 2.4kW @ 5 hours = 12kWh Cost = 12 * 0.15 Cost = $1.80 (Alternatively, [43,200,000J/(1000*3600)] = 12kWh)

ATAR means jackshit in the scheme of things. I think that a great deal of the super diligent students are that way because of pressure from parents and community expectations, which is particularly true for certain cultures. One of my physics students, who is definately capable of band 6 in...

On this question surely they would be very lenient. It does say " Indicate the approximate positions So you would need to put Earth on the opposite side and you would just need to ensure that Mars is less than 180 degrees opposite it's initial location, at least that is what i would think.

Fermi tried to extend the periodic table. He bombarded what he thought was Uranium-238 with neutrons and produced Uranium-239 which underwent beta decay to form elements with a higher atomic number than uranium i.e. neptunium and plutonium. Fermi observed several other elements that were...

Mate, you must be doing it wrong. How dumble said to do it is kinda correct, just missing a step. Use Rydberg's equation, ni=1, nf= infinity Comes out to be 13.6eV It sounds like you are finding the wavelength and then dividing the wavelength by 1.602x10^-19J You are missing a step mate...

Waves: - Talk about differences between red and blue light in terms of wavelength / frequency - Can talk about intensity in terms of amplitude of the wave Particles: - Talk about difference in terms of energy (As attributed by E=hf) - Can talk about intensity in terms of number of photons...

I believe so :) I have seen different textbooks say different things, but my basic understanding of it, is if you were to rotate the device through 90 degrees, then you should observe variations in brightness due to the interference of the waves, if the luminiferous ether is present. When you...

They had no idea which direction the ether was oriented. The whole idea was to get one wave travel "across" the ether and the other wave travel "with and against" the ether. They rotated it by 90 degrees, cuz at some point during the 90 degree rotation the waves would be oriented exactly...

AC Induction Motor An induction motor is an AC machine in which torque is produced by the interaction of a rotating magnetic field produced by the stator (AC voltage) and currents induced in the rotor. In an induction motor, the stator and rotor are separated by a thin air gap. Another...

I also get 4F ((3x2x2)/3)

Well transformers do only work with AC :) Other things u could talk about are perhaps how all home appliances can be plugged into the mains supply even if they run on a voltage other than 240V. But yeah, basically the reason why AC is useful is that fact that it can be transformed

How heavy is the mass? I would use either MDF, jiprock or if it is a light load, definately balsa wood. Would be best if you could get some foam wheels like they use on professional RC cars, these are super sticky and provide best grip. Use these wheels on the driving axle (rear axle...

The development of the transformer made it possible to transmit electrical energy efficiently over great distances. Remote communities now have access to grid-supplied high voltage electricity. This has raised the living standards of rural communities through the provision of, for instance...

Should do something like "How does the wavelength of light affect plant growth" Simply just get a few pots, put a few seeds in each, wrap with different coloured cellophane (acts like a wavelength filter), put some holes in it so that our good ole friend Oxygen can get into it and leave in the...

I wish there was something which could be done about it. The old physics syllabus whilst much more mathematically intense, concentrated much more on things which are now covered with engineering science, ie., rotational motion and the like. I think that this syllabus is far more interesting...

True, HSC physics is extremely watered down and in some parts, just plain wrong. I tend to go a little beyond the syllabus, especially in Q2Q. But, i ensure that i tell my students that they wont be asked anything about it! Delving a little deeper into the maths and using the maths to actually...

Dont worry guys, even through first year uni physics you will still be mislead! What you need to know is that 'intensity' of a light incident on a metal is referring to the number of photons which are passing a point each second. The higher the intensity of a light source, the more photons of...