# Search results

1. ### General Thoughts: Physics

Here you go guys...Physics HSC 2015
2. ### General Thoughts: Physics

Yeah me too :)
3. ### General Thoughts: Physics

I think the graph would look something like this. I don't 100% remember where A, B, C and D was labelled and the graph's shape may be a bit inaccurate (so take this with a grain of salt) but you get the idea...:)
4. ### General Thoughts: Physics

I don't agree with this part. The graph when the trolley is right under the magnet should have zero gradient, as the net force on the trolley would be zero. Remember Emf (induced) = -delta (phi)/delta (t). And phi = B (magnetic field strength) x A (area of the trolley affected by the magnetic...

I agree
6. ### General Thoughts: Physics

Someone post the MCQ's pls....
7. ### General Thoughts: Physics

I related it to Thompson's charge to mass ratio and said that the force due to electric field equals centripetal force on the electrons....
8. ### General Thoughts: Physics

Which one????

+1
10. ### General Thoughts: Physics

I got 60 degrees..... like iforgotmyname
11. ### General Thoughts: Physics

I also wrote that the electron should start deflecting from the start of the electric field, not from the middle of it...
12. ### General Thoughts: Physics

I also said that the value for g was an average in model x, but I think I also said that in model Y, the radius of Earth was assumed to be average as well, as when the Earth spins it bulges at the Equator and flattens at the poles. I said they give similar results because in both cases, Ep...
13. ### General Thoughts: Mathematics Extension 1

For the projectile question (14aii), I equated x = vtcos(theta) and x = (v^2sin2(theta))/g, as they both equal x. Then, simplifying on both sides, I get theta = sin-1 (1/√3)
14. ### General Thoughts: Mathematics Extension 1

Could you show the working out for this? Thanks
15. ### General thoughts: HSC chemistry 2015

I guess since it's a discuss question...you might lose maybe 2 for the 5 marker, just because I think the question states "discuss it's use in the industry in terms of its properties..." But other than that, you should be fine for that one...
16. ### General thoughts: HSC chemistry 2015

But instead of writing "lead-acid cell" in my response, I wrote "fuel cell" throughout even in th cost and practicality part. And I think a fuel cell has the same issues as lead-acid cell. Should I get at least two....for cost and practicality????
17. ### General thoughts: HSC chemistry 2015

Damn it....just checked it's different. How many marks do you think I'd lose?
18. ### General thoughts: HSC chemistry 2015

But isn't this outside the course?...
19. ### General thoughts: HSC chemistry 2015

What did you guys put in for the battery 4-marker. I thought fuel cell is the same as lead-acid cell so I wrote all about it. If it isn't the same, then wouldn't fuel cell be outside the syllabus?
20. ### Guys, I am in Year 11 and am looking for maths extension 1 and preliminary books for both year...

Guys, I am in Year 11 and am looking for maths extension 1 and preliminary books for both year 11 and 12. So if you have any links that you'd like to share, just post them below.................. :jump: