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re: HSC Physics Marathon Archive This is what I would talk about. Still unsure where the photoelectric effect comes into play or if it does at all.

Good luck for extension 1 everybodyyyyy

re: HSC Physics Marathon Archive 6/6 nice

maybe you're inputting your raw marks? Keep in mind that raw marks should be aligned before you put it in a calculator, 80 seems definitely viable for you

My HSC papers have been saying "Black Pen ONLY" and supervisors were giving black pens to people who had blue pens

Not saying WSU is a bad uni bc i'd actually consider going there if I was going to do a science-y course. However just to put reality into perspective; my cousin (Comm Law UNSW) had a low credit WAM and she got a traineeship over a WSU student (Comm Law, upper distinction average). This is...

Re: OFFICIAL PHYSICS HSC 2015 Prophecies!!!!! --> FROM A NOSTRADAMUS DESCENDANT!!!!!! Physics better not fk up my all rounder ... it probably will lol

light study should consist of something like some multiple choice questions, nothing that needs you to think too much, but will put you in the exam mood

re: HSC Physics Marathon Archive Explain the operation of solar cells with the aid of a diagram. [6 marks]

WSU is good depending on what course you do. My teacher did her chem degree there and said their science faculties and equipment are top notch

98.95 (jks def 99+ assuming you performed at your trial levels in hsc)

time travels slower for them, so a certain space trip can be deemed to take 100 years, but at relativistic speeds it will feel like 10 years for astronauts (astronauts are still young and able to complete the trip, whereas people on earth are old/dead)

re: HSC Physics Marathon Archive I assume you're referring to B-V index (same principle applies to all filters). A blue filter allows for only light in the blue part of the spectrum, this is the 'blue magnitude' (B), a visual filter allows only light from the yellow-green portion of the...

re: HSC Physics Marathon Archive I got 30.05 when I did it, no complicated simultaneous equations lol

Dilation means to expand or lengthen, therefore astronauts in the spaceship will have 'lengthened' time (not correct terminology, but for explanation sake), meaning that their time will feel longer than those on earth. Like Kap explained 1 year to the astronaut becomes elongated in their sense.

re: HSC Physics Marathon Archive my bad, For AC power generation, a generator consists of slip rings which rotate as the armature coil rotates. Since there is contact with the brushes throughout the whole rotation of the armature coil, current is induced in both directions, hence producing an...

re: HSC Physics Marathon Archive meeeeee just got up to astro in the past paper i'm doing

re: HSC Physics Marathon Archive Split ring reverses current every half cycle to maintain the rotation of the motor in the same direction, slip ring rotates with the coil and maintains electrical contact

A CRO pretty much makes voltages 'visible': "A CRO uses a cathode ray tube to display a variety of electrical signals. The horizontal deflection is usually provided by a time base (or sweep generator), which allows the voltage (on the vertical axis) to be plotted as a function of time (on the...

re: HSC Physics Marathon Archive yep pretty much, just one with a handle to produce the work