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Unofficial M1 Mark Scheme?

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1. what grade would 54 be? please tell me its an A* ( 90 UMS ) JK
atleast say A?
2. Guys , what's the rule if i crossed out a right answer would it still be marked? I did this in two questions and i lost about 7 marks
3. If I made the following errors, what score should I expect out of 75? And what grade would you expect it to be roughly

Q3) Calculated reaction of brick on the pan instead of the stated pan on the brick

Q4) Incorrectly calculated Impulse using the data given and a mixture of formula

Q6) Incorrectly calculated mass and distance but used a viable method

Q7) All correct except direction of reaction on pulley (correct magnitude though)
4. (Original post by pauux)
Guys , what's the rule if i crossed out a right answer would it still be marked? I did this in two questions and i lost about 7 marks
depends how much you crossed out. always never cross out, and they mark your correct answer. If your crossed working out is still legible then they could likely still mark it
5. (Original post by k3shb4kr4n14)
If I made the following errors, what score should I expect out of 75? And what grade would you expect it to be roughly

Q3) Calculated reaction of brick on the pan instead of the stated pan on the brick

Q4) Incorrectly calculated Impulse using the data given and a mixture of formula

Q6) Incorrectly calculated mass and distance but used a viable method

Q7) All correct except direction of reaction on pulley (correct magnitude though)

Q3 you would get 2/3 as i compared it to the question 3 of gold paper 5

Q4 wasnt impulse?

Q6 depends on your method, you will have to go into more detail

Q7 3/4
6. (Original post by samma1)
what grade would 54 be? please tell me its an A* ( 90 UMS ) JK
atleast say A?
id say high b
7. (Original post by KloppOClock)
ALL ANSWERS HAVE BEEN EXPLAINED - CLICK ON THE MODEL ANSWERS TAB!

IMPORTANT NOTE: After speaking with some maths teachers, they have said that they believe the grade boundaries will be relatively low due to the simultaneous vector question and question three!

*So people stop asking, when using 'g' 2 or 3 significant figures is fine.

How many marks should I give myself?
Spoiler:
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When using an approximation such as 'g', your answers should be to three or two significant figures or you lose one 'A1' mark.
Generally, every equation you form is worth a mark (that doesn't mean you can write random equations and get marks, they have to be part of the steps to get the answer)
If you got your final answer wrong, either post in the comments how many marks you think you should get, or look up previous questions that are similar by googling 'edexecel m1 questions by topic', choosing your topic and then press CTRL + F to find a question with similar marks. Look at how the marks have been distributed and compare it to the question.
Finally, mark it twice first harshly and secondly generously so you give yourself a range of possible marks, for example 59-63 marks earned.
Question 1: (10 marks)
Spoiler:
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1(a) 104, (3 marks)

1(b) p = (400+15t)i + (20t)j (3 marks)
q = (20t)i + (800-5t)j

1(c) Q = 640i + 640j (4 marks)

Question 2: (6 marks)
Spoiler:
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2(a) T = 20.6N or 21N (3 marks)
2(b) 15N or 15.5N (3 marks)

Question 3: (7 marks)
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3 Ns (7 marks)

Question 4: (12 marks)
Spoiler:
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4(a) (4 marks)

4(b) T = 8.75 s (8 marks)

Question 5: (10 marks)
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μ=0.73 or μ=0.727 (10 marks)

Question 6: (7 marks)
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d = 1.2m (4 marks)
m = 42kg (3 marks)

Question 7: (11 marks)
Spoiler:
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7(a) F2 = 2.5i + 2.5j (7 marks)
(b) 13 ms-1 (4 marks)

Question 8: (12 marks)
Spoiler:
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8(a) T = 11.8 N or 12 N(8 marks)

8(b) = 16.6 N or 17 N
It has a bearing of 225
or
45 degree angle between horizontal plane and vertical rope
or
draw a diagram and annotate angles (4 marks)

Model Answers: (click spoiler to show images).

Question Bank: (simplified)
Spoiler:
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Question One:
Q has velocity (20i-5j) and starting position (800j). P has velocity (15i+20j) and starting location (400i).

a) Find the bearing of Q.
b) i) Find the location of P and Q at time = t.
c) Find the location of Q when it is west of P.

Question Two:
A scale pan of 0.5kg carries a brick of 1.5kg and is attached to a vertical rope. The body is accelerating upwards at 0.5m/s/s.
a) Find the tension in the rope.
b) Calculate the force exerted by the scale pan onto the brick.

Question Three:
A particle of mass 0.4kg collides with a wall at a speed of 4m/s and rebound back 5m before stopping. The coefficient of friction on the ground is 1/8. Calculate the magnitude of the impulse exerted by the wall onto the particle.

Question Four:
A car M overtakes car N at 40m/s at point A and travels for T seconds before uniformly decelerating to 0m/s at point X. Car N travels at 30m/s for 25 seconds before decelerating uniformly at the same point. AX = 975m.
a) Draw a speed-time graph of both cars on the same graph.
b) Find the value of T.

Question Five:
Particle of mass 2kg on slope inclined to ground at 20 degrees. Being pushed up a rush surface by force of 4 N at angle of 30 degrees to slope. Calculate mew.

Question Six:
Non-uniform rod of length AB has length 6m and mass 30kg. It has two supports S and T, where AS = 0.5m and TB=2m. When a particle of mass M is placed at A, the rod is at the point of tipping around S. When a particle of mass M is placed at B, the rod is at the point of tipping around T. The distance between A and the center of mass is D.
a) Find D
b) Find M

Question Seven:
F1 = (-i + 2j) F2 same direction as (i+j). Resultant of F1 and F2 has same direction as (i+3j). The resultant of F1 and F2 has acceleration (3i+9j) and initial velocity (3i-22j).
a) Calculate F2
b) Find the velocity of the resultant of F1 and F2 and t=3.

Question Eight:
Mew = 1/5. Particle A is on a horizontal plane and has mass 1.5kg. Particle B is on a verticle rope and hangs with mass 3kg. Both are connected to a pulley so that the angle between them is 90 degrees. A is to the left of B.
a) Find Tension
b)Find magnitude of tension on pulley
If you want to try and calculate your UMS score, try this:I hope you all did well!
For the question where you had to find F2, I wasn't sure what to do so put k as a constant for both the vectors, and ended up with it as -1, would this loose me all the marks? Also for the scale pan question in the second part, I did R - 2g = 1.5 x 0.5, so got 20.35N as my answer, how many marks would that loose me? I think I've got about 61 min, do you think it'll be enough to get an A?
Thank you!
8. (Original post by KloppOClock)
Q3 you would get 2/3 as i compared it to the question 3 of gold paper 5

Q4 wasnt impulse?

Q6 depends on your method, you will have to go into more detail

Q7 3/4
Sorry, where I said Q3, I meant Q2, and where I said Q4, I meant Q3
9. (Original post by olivia.grace.b)
For the question where you had to find F2, I wasn't sure what to do so put k as a constant for both the vectors, and ended up with it as -1, would this loose me all the marks? Also for the scale pan question in the second part, I did R - 2g = 1.5 x 0.5, so got 20.35N as my answer, how many marks would that loose me? I think I've got about 61 min, do you think it'll be enough to get an A?
Thank you!
depending on the mark scheme 61 could likely be an a, although a low one.

you may get method marks for showing that F2 = a constant times that vector
however you may not get any more then that, altho if you managed to form some simultaneous equations you could get follow up method marks

for the scale pan question the marks are broken up like this (when compared to a nearly identical question last year)

1 mark for applying f=ma M1
1 mark for correctly using forces in ma A1
1 mark for a correct answer based on YOUR f=ma A1 (ft)
10. (Original post by k3shb4kr4n14)
Sorry, where I said Q3, I meant Q2, and where I said Q4, I meant Q3
a lot of the impulse marks would come from the suvat part of the question

im not entirely sure how the marks are broken down as the question is kind of unique in that there arent past similar ones that i could find
11. how much UMS do you think i will get for 65/75 ?
12. (Original post by KloppOClock)
id say high b

Hi man,

Seeing as you seem to be the one that is now answering everyone's questions ( arsey beware )

I was wondering if you could answer a few things...

1) I think I got a max of 64 and a minumum of 56 ish on that exam ( I know its a big distortion but I just want to not put myself to high or to low on the marks) what UMS and grade would you assume

2) I think I got the UMS of a middle B in my FP1 exam ( cant remember excatly as it was a while ago ... for me anyway ), this is part of my AS further being combined with S2.. what kind of UMS and grade would I need in S2 to come out with a B or potentially an A ( I know this is a huge ask considering how much variance there is in the info I have given)

Cheers !

Will
13. (Original post by Billsonbubbles)

1) I think I got a max of 64 and a minumum of 56 ish on that exam ( I know its a big distortion but I just want to not put myself to high or to low on the marks) what UMS and grade would you assume
I am in the same boat, would be interested to know too!
14. (Original post by Billsonbubbles)
Hi man,

Seeing as you seem to be the one that is now answering everyone's questions ( arsey beware )

I was wondering if you could answer a few things...

1) I think I got a max of 64 and a minumum of 56 ish on that exam ( I know its a big distortion but I just want to not put myself to high or to low on the marks) what UMS and grade would you assume

2) I think I got the UMS of a middle B in my FP1 exam ( cant remember excatly as it was a while ago ... for me anyway ), this is part of my AS further being combined with S2.. what kind of UMS and grade would I need in S2 to come out with a B or potentially an A ( I know this is a huge ask considering how much variance there is in the info I have given)

Cheers !

Will
well your'e right that there are a lot of variables, so if you want to calculate your ums, do this.

1. Work out the gap between the grade boundaries (e.g a and b) in raw marks
2. Work out the gap between the your grade boundary grade in UMS marks (10 in this case).
3. Work out the gap between your mark and the next lowest grade boundary in raw marks
4. Divide the number worked out in step 3 by the number worked out in step 1. (in this case, 5/6)
5. Multiply this by the number in step 2 and add it to the next lowest grade boundary in UMS this time.

this will give you a decent result provided your marks aren't too high or low or they will be skewed. You would need to guess grade boundaries (maybe use last years). Then see how much UMS you need for your grade.

but its difficult to work out UMS, just aim as high as you can in your next exams.

however just looking at your marks, if you got a strong mark in the 60s you could get an A

maths teachers have said grade boundaries will be "relatively low" so i think an A grade could be within that range
15. (Original post by KloppOClock)
well your'e right that there are a lot of variables, so if you want to calculate your ums, do this.

1. Work out the gap between the grade boundaries (e.g a and b) in raw marks
2. Work out the gap between the your grade boundary grade in UMS marks (10 in this case).
3. Work out the gap between your mark and the next lowest grade boundary in raw marks
4. Divide the number worked out in step 3 by the number worked out in step 1. (in this case, 5/6)
5. Multiply this by the number in step 2 and add it to the next lowest grade boundary in UMS this time.

this will give you a decent result provided your marks aren't too high or low or they will be skewed. You would need to guess grade boundaries (maybe use last years). Then see how much UMS you need for your grade.

but its difficult to work out UMS, just aim as high as you can in your next exams.

however just looking at your marks, if you got a strong mark in the 60s you could get an A

maths teachers have said grade boundaries will be "relatively low" so i think an A grade could be within that range

Perfect thanks !

You're awesome man !

Thanks for getting back to me so quickly .... I am okay with S2 but haven't done so many past papers comparing the amount I have done for FP1 and M1 as I have a lot of exams.... fingers crossed.... I mean even if I somehow get a C it will be good

Cheers !
16. In question 8)a) i left my answer as 1.2g , will I loose marks for this?
17. (Original post by TercioOfParma)
Has it ever been that high? I reckon 60-61 for an A, a lot of my friends found it very difficult

Posted from TSR Mobile
There may be a curve ball where the C & B boundaries go down whereas the A & 90 UMS boundaries move up!
In question 8)a) i left my answer as 1.2g , will I loose marks for this?
thats fine
19. Hi. I have worked out that I got about 62/75 (minimum) on FP1 and on the m1 paper I got possibly 75/75 (give or take if I get all method marks). I was just then wondering how I'd have to do in my m2 paper to secure a solid A as that's my aim. If anyone could let me know it's be much appreciated

KloppOClock @AMarques could you help?
20. Attached are my solutions to the paper in pdf format. If there any mistakes please do tell me!
Attached Images
21. M1 JUNE 2016.pdf (124.2 KB, 73 views)

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