***JC 2014 Science - Thu. June 12th 2014 - all levels***

spurious

Science (OL and HL)
Thursday June 12th 2014

All discussion and questions about the Science paper goes here, following the exam. Please do not post predictions or discussion here before the exam.

Usual rules apply. Anyone slagging off another poster about the level they did, or a mistake they made, will be banned for the duration of the exams.

Please keep off-topic chat elsewhere.

Good luck all.

Beca19

That was a lovely exam

Xgracie

Nice paper! Defs got a B

nanook5

Xgracie wrote: »

Nice paper! Defs got a B

Same although I didn't like it

MangoMachine

Anyone else finish really early?

Msrebeckyxo

That was horrible for me Be lucky if i get a C with the project

jenbar09

I thought biology was great, physics some parts were hard, like the calculating parts. What did ye do for the Oxygen One?? I just drew the electronic configuration of the electrons, 2,6. I didn't have a clue how to draw a molecule.

Gerrymandering reborn

I did good in that. Hoping for a B

DanielChester

That was a fairly easy test. I had no clue what that biofuel & hydroelectricity thing came up.

ECM1234

For that graph, did anyone else get a weird number, when they divided 6/1300?

emersyn

jenbar09 wrote: »

I thought biology was great, physics some parts were hard, like the calculating parts. What did ye do for the Oxygen One?? I just drew the electronic configuration of the electrons, 2,6. I didn't have a clue how to draw a molecule.

I drew two of the electronic configuration yokes and I sort of intertwined the outer circles so it looked like they were stuck together? I wasn't really sure at all for that one
Please tell me the graph at the end was supposed to be curved

ECM1234

emersyn wrote: »

I drew two of the electronic configuration yokes and I sort of intertwined the outer circles so it looked like they were stuck together? I wasn't really sure at all for that one
Please tell me the graph at the end was supposed to be curved

Yeah, mine was

DanielChester

ECM1234 wrote: »

For that graph, did anyone else get a weird number, when they divided 6/1300?

Yeah I got this too... I just rounded it will I lose marks? D=

ECM1234

DanielChester wrote: »

Yeah I got this too... I just rounded it will I lose marks? D=

I doubt it,

Gerrymandering reborn

DanielChester wrote: »

Yeah I got this too... I just rounded it will I lose marks? D=

Strange I got an even number

ECM1234

Gerrymandering reborn wrote: »

Strange I got an even number

How did you do it?

DanielChester

For the test for the density of an apple, i first got the mass from an electronic balance, and then got the volume by putting it in a overflow can & letting it flow into a graduated cylinder, finally divided mass by volume to get density.

DanielChester

ECM1234 wrote: »

How did you do it?

I don't think he's serious.

jenbar09

emersyn wrote: »

I drew two of the electronic configuration yokes and I sort of intertwined the outer circles so it looked like they were stuck together? I wasn't really sure at all for that one
Please tell me the graph at the end was supposed to be curved

Well it was a better attempt than mine was haha. Yea mine was curved too. Did anyone get 96000 as one of the answers?? I think I may have multiplied instead of dividing. How did you do the ferris wheel one??

ECM1234

jenbar09 wrote: »

Well it was a better attempt than mine was haha. Yea mine was curved too. Did anyone get 96000 as one of the answers?? I think I may have multiplied instead of dividing. How did you do the ferris wheel one??

Yeah I got that for the Ferris wheel Q, it was abit strange, to see radius and diameter for science though

nanook5

ECM1234 wrote: »

How did you do it?

I got like 0.0456......

emersyn

jenbar09 wrote: »

Well it was a better attempt than mine was haha. Yea mine was curved too. Did anyone get 96000 as one of the answers?? I think I may have multiplied instead of dividing. How did you do the ferris wheel one??

I got the diameter of the ferris wheel and then I multiplied it by the 0.25 seconds given, I rounded the answer to 25 minutes I think

ECM1234

nanook5 wrote: »

I got like 0.0456......

Same here, I thought I must have done it wrong, but obviously not..,

Gerrymandering reborn

nanook5 wrote: »

I got like 0.0456......

I got 0.40

jenbar09

ECM1234 wrote: »

Yeah I got that for the Ferris wheel Q, it was abit strange, to see radius and diameter for science though

Great I'm not the only one. I know right, I was kinda there thinking why didn't they just give one on balancing the moments of something instead.

DanielChester

ECM1234 wrote: »

Yeah I got that for the Ferris wheel Q, it was abit strange, to see radius and diameter for science though

Yeah, it was a weird question, like I nearly made the mistake of using the radius of the ferris wheel instead of the full circle (diameter). That question is something you'd usually see on a maths paper.

ECM1234

jenbar09 wrote: »

Great I'm not the only one. I know right, I was kinda there thinking why didn't they just give one on balancing the moments of something instead.

Exactly!

Scrublord420

I messed up a lot because i keep getting distracted by the bird squaking in the vent above my head uggh i forgot soo much

Liordi

I got an even number as well, though, I'm pretty sure mine was 6/1200
As long as it's appropriate to your graph it should be okay.

ECM1234

Did snyone get 1300 for the resistance?

Liordi

I know I did the ferris wheel question wrong.
Really odd to appear on Science and didn't think I would have to use circle formulas in a science exam.

Think I just divided 60/.25

jenbar09

ECM1234 wrote: »

Did snyone get 1300 for the resistance?

I did, and when I got like 0.00456 or something. I thought my answers were totally wrong. Fot the density of the apple, I got the volume but totally forgot the mass.

ECM1234

I deffinately got the bike q wrong

DanielChester

ECM1234 wrote: »

Did snyone get 1300 for the resistance?

I did.

coolerboy

ECM1234 wrote: »

I deffinately got the bike q wrong

It was it reduced friction

Liordi

jenbar09 wrote: »

Fot the density of the apple, I got the volume but totally forgot the mass.

Was there figures in the question?
I think I said to place the apple on a weighing scales to calculate the mass and then use an overflow can to find the volume.

DanielChester

Liordi wrote: »

I know I did the ferris wheel question wrong.
Really odd to appear on Science and didn't think I would have to use circle formulas in a science exam.

Think I just divided 60/.25

It asked you to calculate the work. Work is force(n) * distance which in this case was the radius.

luimneachabu

What was the general name for the liquid in the beaker in the distillation experiment?

ECM1234

coolerboy wrote: »

It was it reduced friction

I thought they were on about corrosion, but then I realised that that is chemistry :L I then said that water deteriorates the rubber :L

coolerboy

What property of oxygen make it go to the top of the beaker ?
I said the downward displacement of air.

Edit-i meant the upward displacement of oxygen

emersyn

luimneachabu wrote: »

What was the general name for the liquid in the beaker in the distillation experiment?

Just water I think

Gerrymandering reborn

I found the test for protein question HARD.

emersyn

coolerboy wrote: »

What property of oxygen make it go to the top of the beaker ?
I said the ddownward displacement of air.

I said it was less dense, wasn't sure though

Liordi

DanielChester wrote: »

It asked you to calculate the work. Work is force(n) * distance which in this case was the radius.

I'm talking about the part where you had to calculate the seconds it took to go around the ferris wheel, but apparently I need the circumference for that.

I got part (i) right, think I multipled 60 x 800?

Gerrymandering reborn

emersyn wrote: »

Just water I think

I'm pretty sure it's water.

Liordi

emersyn wrote: »

I said it was less dense, wasn't sure though

I said this as well, couldn't think of anything else.

ECM1234

coolerboy wrote: »

What property of oxygen make it go to the top of the beaker ?
I said the ddownward displacement of air.

Oxygen is denser than air

coolerboy

luimneachabu wrote: »

What was the general name for the liquid in the beaker in the distillation experiment?

Distillate

DanielChester

coolerboy wrote: »

What property of oxygen make it go to the top of the beaker ?
I said the ddownward displacement of air.

I said it can be compressed.

MissCupcake

emersyn wrote: »

Just water think

filtrate

MangoMachine

coolerboy wrote: »

What property of oxygen make it go to the top of the beaker ?
I said the ddownward displacement of air.

Less dense maybe?