AQA AS Physics Unit 2 (PHYA2) June 9th 2016 Resit paper

In the projectile motion question, wasn't the end horizontal velocity just the same as the 12ms-1 initial velocity beccase there was no air resistance? Really confused at that one

Reply 441

clarkey500

17

Original post by sorch1

Does anyone else feel like they haven't got their grades for uni now :frown:

I only need 240 UCAS points (including AS and EPQ) as they lowered my offer. Including a B in maths (but the lady at the interview said a C will be fine) as I'm specialising in maths. So I should be fine but AQA and Edexcel seem to be playing around with my future.

Reply 442

Simple Harmonic

2

Original post by WillRose

In the projectile motion question, wasn't the end horizontal velocity just the same as the 12ms-1 initial velocity beccase there was no air resistance? Really confused at that one

The end horizontal velocity will be larger since the projectile will accelerate downwards in the vertical direction, due to gravity.

Reply 443

boyyo

6

Original post by Simple Harmonic

The end horizontal velocity will be larger since the projectile will accelerate downwards in the vertical direction, due to gravity.

Did you have to put a right at the end, I put it like a few mm before

Reply 444

matty9

2

[video="youtube;ctMibK_YPQs"]https://www.youtube.com/watch?v=ctMibK_YPQs[/video]

Hitler reacts

Reply 445

Jon1234321

1

Anyone else apart from me and JamieOH draw this?

Reply 446

Simple Harmonic

2

Original post by boyyo

Did you have to put a right at the end, I put it like a few mm before

AFAIK, it should have been at the end since the maximum vertical velocity occurs infinitesimally close to/immediately before the point of impact.

Not sure of how strict the mark scheme will be however.

Not a great paper IMO but I think I did relatively well. Missed about 8 marks because of not finishing and I think I did dropped about 6/7 because of petty errors. Hopefully anyway. Wbu?

Reply 447

Simple Harmonic

2

Original post by Jon1234321

Anyone else apart from me and JamieOH draw this?

IIRC I drew this too. I think my normal line was a little wonky however since I was rushing.

Reply 448

WhoDaresWins

17

Original post by matty9

[video="youtube;ctMibK_YPQs"]https://www.youtube.com/watch?v=ctMibK_YPQs[/video]

Hitler reacts

Oh man I needed that!
Thanks a lot

Reply 449

Billsonbubbles

5

Just another hitler video !

Sorry mine doesn't work so well, I haven't done one before

https://www.youtube.com/watch?v=jcV8D1dOdCs

Reply 450

Jon1234321

1

Original post by Simple Harmonic

IIRC I drew this too. I think my normal line was a little wonky however since I was rushing.

Nice, if anything the normal line I drew on the diagram is wonky so yours is probably ok.

Reply 451

boyyo

6

Original post by Simple Harmonic

AFAIK, it should have been at the end since the maximum vertical velocity occurs infinitesimally close to/immediately before the point of impact.

Not sure of how strict the mark scheme will be however.

Not a great paper IMO but I think I did relatively well. Missed about 8 marks because of not finishing and I think I did dropped about 6/7 because of petty errors. Hopefully anyway. Wbu?

I usually aim not to drop more than 15, after the exam i counted about 20, but after seeing what people are saying Im think about 25ish, so that would mean I'll get 45/70 give or take. Depending on grade boundaries hopefully it'll be a decent B.
But having said that, it was 47 for an A last year, so maybe I might be able to scrape an A

Reply 452

Jay1421

2

Original post by Simple Harmonic

The end horizontal velocity will be larger since the projectile will accelerate downwards in the vertical direction, due to gravity.

Why would the horizontal velocity change due to vertical acceleration? That should only affect the vertical component, not the horizontal one - the Horizontal component should just be cos25 * the resultant velocity at the start.

Reply 453

Mo2351

3

What do you think the grade boundary will be for an A

Posted from TSR Mobile

Reply 454

Mo2351

3

Did we have to draw a graph for the 6 marker and does anyone have an unofficial mark scheme?

Posted from TSR Mobile

Reply 455

Ghettobadger

5

Original post by Jon1234321

Anyone else apart from me and JamieOH draw this?

yesssssssssssssssss

Reply 456

boyyo

6

Original post by Jon1234321

Anyone else apart from me and JamieOH draw this?

I did, but mine didnt refract that much though

Reply 457

Simple Harmonic

2

Original post by Jay1421

Why would the horizontal velocity change due to vertical acceleration? That should only affect the vertical component, not the horizontal one - the Horizontal component should just be cos25 * the resultant velocity at the start.

I thought it said vertical velocity. Didn't the exam question say vertical?

Reply 458

Simple Harmonic

2

Did people get a line of negative gradient from the initial point to Tf (or h, can't remember which way around) and then a line of positive gradient to the other T reference point?

Surprising that there were no materials questions whatsoever.