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# Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST Tweet

Maths exam discussion - share revision tips in preparation for GCSE, A Level and other maths exams and discuss how they went afterwards.

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1. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
72/75... got the thrust as -0.125 at first and thought "That cant be right" so I played around with the numbers and got 2.125N
Do you guys think I'll get 1 mark for using F=ma and showing working for 9e? I ended up making it 1-T=0.3*-3.75
Last edited by Serpentine111; 17-05-2012 at 00:35.
2. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
As long as I don't get penalised for not putting in the units for newtons and perhaps if i get error carried forward for question 3 (silly of me as i did it right at first then crossed it out then i wrote a wrong method down thus answers) I might get 60/75 but at least it was much better than the last time I took m1 paper.
3. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
worst case scenario I dropped 10 marks. Still likely to get my A though, would have been nice to muller it..
4. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
Does 058 anticlock not work? And for the last 4 marks on question 6 how many method marks can i expect for finding the time that theyre due north and
Subbing it into a position vector formula?
probably 2 marks. The other 2 would be for using Pythagoras and getting the answer of 5.
5. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
(Original post by Gman1234)
probably 2 marks. The other 2 would be for using Pythagoras and getting the answer of 5.
Oh no i got 5 the one after that
6. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
****, I forgot the 4g on 5(c) as well. I put 0.31 as the answer though, so I wonder if I'll get away with that...even though 3.16 doesn't even round to that
7. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
(Original post by Dominic.)
****, I forgot the 4g on 5(c) as well. I put 0.31 as the answer though, so I wonder if I'll get away with that...even though 3.16 doesn't even round to that
I thought i was wrong in including the 4g was stressing me out all day glad it worked out
8. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
For the first question I got M to be -0.3...would I still be awarded the marks despite the negative sign?
9. Re: M1 May 2012 Edexcel - Post Exam thread - Paper and Solutions in the FIRST POST
Originally Posted by Arsey

THRUST

Go over the Thrust question from June 09, it is going to come up again at some point

Tension is a pulling force, tensions will point towards each other in a connecting object

Thrust is a pushing force, thrusts will point away from one another in a rigid connecting object

(Original post by -Simon-)
Nailed it.

In fairness, I have been saying it every paper since lol
10. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
(Original post by Flynn Precup)
For the first question I got M to be -0.3...would I still be awarded the marks despite the negative sign?
You'de lose A1. Mass cannot be negative.
11. Re: M1 May 2012 Edexcel - Post Exam thread - Paper and Solutions in the FIRST POST
(Original post by Arsey)
Originally Posted by Arsey

THRUST

Go over the Thrust question from June 09, it is going to come up again at some point

Tension is a pulling force, tensions will point towards each other in a connecting object

Thrust is a pushing force, thrusts will point away from one another in a rigid connecting object

In fairness, I have been saying it every paper since lol
Arsey for question 4c, how many marks would I get for total distance=area under graph idea (I tripped up on area of a trapezium- stupidly).
12. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
for the time Q, i wrote 3.0 and 1.3. Will i get full marks?
13. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
for 6d) i got the correct time, but i did 2.75 x 7.5j and forgot to add on the -6j. then i found the difference. how many marks would i get?
14. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
How many marks do you think I'd lose for Q7d...I worked out the acceleration for P only which obviously gave me the wrong distance. However, my methods correct...
15. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
(Original post by Serpentine111)
72/75... got the thrust as -0.125 at first and thought "That cant be right" so I played around with the numbers and got 2.125N
Do you guys think I'll get 1 mark for using F=ma and showing working for 9e? I ended up making it 1-T=0.3*-3.75

If you didn't cross it out you will still get the marks; albeit, losing at least 1 for the - sign.

BIG TIP

NEVER CROSS OUT ANYTHING IN A MATHS EXAM UNLESS YOU ARE 100% SURE IT IS WRONG.
16. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
(Original post by Jeid1)
You'de lose A1. Mass cannot be negative.
m was not mass. It was just a constant.
17. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
(Original post by Musical-Ocean)
for the time Q, i wrote 3.0 and 1.3. Will i get full marks?
Yes, any qu where g has been approx to 9.8 should be given to 2sf
18. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
(Original post by uttamo)
m was not mass. It was just a constant.
If constant is negative, it leads to a negative mass..
19. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
(Original post by Arsey)
If you didn't cross it out you will still get the marks; albeit, losing at least 1 for the - sign.

BIG TIP

NEVER CROSS OUT ANYTHING IN A MATHS EXAM UNLESS YOU ARE 100% SURE IT IS WRONG.
I'm an idiot. I crossed it out...
20. Re: Edexcel M1 16 May 2012 Post Exam thread - Paper and Solutions in the FIRST POST
Going to sleep now and I have a busy day tomorrow, so I doubt I will be back on here until tomorrow night at the earliest.
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