-
Finished your HSC? Check out our University Discussion, Non-School forums or help out next year's HSC students! -
YOU can help the next generation of students in the community! Share your trial papers and notes on our Notes & Resources page
General Thoughts: Physics (3 Viewers)
- Thread starter GammaOtz
- Start date
and i swear the BOS are on crack or something this year... honestly physics, chem and maths were a lot harder than previous years... especially maths when compared to last years piss easy paper (and btw i aint the dumbest, or the smartest kid out there... like i did well in my CSSA trials LOL) !!!!
panda15
Alligator Navigator
- Joined
- Feb 22, 2012
- Messages
- 675
- Gender
- Male
- HSC
- 2013
Yeah I got that as well.
Honestly, I found it extremely easy :3 I was done 20 minutes early, except like 3 of the multiple choice were a bit challenging and I don't know about that photocells question or whatever It was, I wrote like 10/5 marks about solar cells because I thought they were the same -.- FML.
Oh, and that space station question, I forgot to convert the diameter to radius :c so only 1/2 for that question x.x dem little mistakes yo
And medical was unbelievably easy O_O I mean, I only started learning medical yesterday from scratch and I think i'll legit get around 23/25 for that section.
90+ Raw I'm hoping
Good luck everyone!
Oh, and that space station question, I forgot to convert the diameter to radius :c so only 1/2 for that question x.x dem little mistakes yo
And medical was unbelievably easy O_O I mean, I only started learning medical yesterday from scratch and I think i'll legit get around 23/25 for that section.
90+ Raw I'm hoping
Good luck everyone!ur lucky you didnt do astro... that killed me (and a lot of people ahhaha) lolHonestly, I found it extremely easy :3 I was done 20 minutes early, except like 3 of the multiple choice were a bit challenging and I don't know about that photocells question or whatever It was, I wrote like 10/5 marks about solar cells because I thought they were the same -.- FML.
Oh, and that space station question, I forgot to convert the diameter to radius :c so only 1/2 for that question x.x dem little mistakes yo
And medical was unbelievably easy O_O I mean, I only started learning medical yesterday from scratch and I think i'll legit get around 23/25 for that section.
90+ Raw I'm hoping
For the motor with the mass attached, you use F=ma for the first question so you have F.
For part b, you use Torque=Fd, you have F and D so you get Torque. Then you use Torque=nbiacos(x), you have everything including Torque from Fd, so you just rearrange for I. Whatever that value is keeps the mass stationary, so any current greater than that will lift it.
For part b, you use Torque=Fd, you have F and D so you get Torque. Then you use Torque=nbiacos(x), you have everything including Torque from Fd, so you just rearrange for I. Whatever that value is keeps the mass stationary, so any current greater than that will lift it.
fionarykim
Member
- Joined
- Jul 21, 2012
- Messages
- 264
- Gender
- Female
- HSC
- 2013
Found it a relatively easy text too
But im fking annoyed at myself coz i forgot about photocells, and answeered the question based on solar cells ):
Dude i like fking lost 5 marks there for nothing ): was hoping to raw 90s
But thats not happening anymore... LOL
But im fking annoyed at myself coz i forgot about photocells, and answeered the question based on solar cells ):
Dude i like fking lost 5 marks there for nothing ): was hoping to raw 90s
But thats not happening anymore... LOL
I was honestly going to study astro instead of medical because I don't like medical, It's too boring and I LOVE space and since I didn't know anything for medical till yesterday i was considering just doing space instead haha.
RealiseNothing
what is that?It is Cowpea
Looking at your multiple choice answers from the paper you uploaded, I think you got 14/20...Honestly, I found it extremely easy :3 I was done 20 minutes early, except like 3 of the multiple choice were a bit challenging and I don't know about that photocells question or whatever It was, I wrote like 10/5 marks about solar cells because I thought they were the same -.- FML.
Oh, and that space station question, I forgot to convert the diameter to radius :c so only 1/2 for that question x.x dem little mistakes yo
And medical was unbelievably easy O_O I mean, I only started learning medical yesterday from scratch and I think i'll legit get around 23/25 for that section.
90+ Raw I'm hoping
MATHmaster
Member
This is what the Jacaranda textbook says about photocells, why are solar cells wrong to mention?
A photocell is a device that uses the photoelectric effect. These devices include photovoltaic, or solar cells, which convert electromagnetic energy, such as sunlight, into electrical energy. Other examples are photoconductive cells and phototubes.
pg 207
Someone explain why drawing a solar cell is wrong?
A photocell is a device that uses the photoelectric effect. These devices include photovoltaic, or solar cells, which convert electromagnetic energy, such as sunlight, into electrical energy. Other examples are photoconductive cells and phototubes.
pg 207
Someone explain why drawing a solar cell is wrong?
panda15
Alligator Navigator
- Joined
- Feb 22, 2012
- Messages
- 675
- Gender
- Male
- HSC
- 2013
can't use f=ma. Its moving at a constant speed so a = 0??For the motor with the mass attached, you use F=ma for the first question so you have F.
For part b, you use Torque=Fd, you have F and D so you get Torque. Then you use Torque=nbiacos(x), you have everything including Torque from Fd, so you just rearrange for I. Whatever that value is keeps the mass stationary, so any current greater than that will lift it.
^ that lol
RealiseNothing
what is that?It is Cowpea
Oh please be true.
superSAIyan2
Member
- Joined
- Apr 18, 2012
- Messages
- 320
- Gender
- Male
- HSC
- 2013
RealiseNothing
what is that?It is Cowpea
1, 13, 15, 16, 17, 20.
yeah good, thought you meant it was accelerating upwards