Ocr mei unofficial markscheme a level (paper 1 2023)

1. i used suvat with s=3, u = 8, a = -9.8, t = ? then solving that i got t = 1.05 and t = 0.584s.
2. cannot remember, i know my answer was right coz i checked on the calculator, i think the top numbers of the fractions were 2 and 3? dk tho
3. 2/5x^5 + 2/5x^5/2 + c
4. i think the answer is 0.735N from looking on the other thread. i got 7.35N because i did some dodgy decimal converting clearly
5. i can't remember my answer to this but i think it was a pretty easy question to know if u got right bc u can just draw the graph on the calc. i think as above the two points were supposed to be 2 and -2 and when i put them into d^2/dx^2 i got -8 both times so they're both maximum.
6. this was a show question so the answers already on the paper.
7. i think i got 7/24 pi and 31/24 pi which i checked on the calculator (im not 100% sure that answer was for this question i can't remember)
8. as most people have said, i think 6 root 10 is right. that's what i got.
9. the bus question was awful. i drew the velocity time graph as the boy running up to the speed six and then just a straight line. cannot help with any other answers to that question!
10. yep, acceleration = 0.462.
11. can't remember what a was but b was defo 0.5. the period was pi, and then i can't remember what the answers were to the equation to solve. for some reason 2.72 is in my brain as one of the answers but i might have made that up.
12. sunflower one a = -194.5. the rate of change answer i put 29.6 days or somethng
13. i messed this one up coz i didn't include weight in any of my calculations so dumb
14. the first two e^x questions were both showing stuff so pretty easy to know if u got right. the integration one on that i think i got that when x = 1, y = -0.81 or something so that shows its below x axis.
15. first one was show that was just showing log1010 = 1. then the sequence is arithmetic bc u add 1 or log1010 each time. the last one i can't remember i think i did something like 50log10/20 + 1125 but idk.
16. first one was just a show question, second one i put theta bigger than 76 but apparently the answer also includes a 90 coz its acute and i didn't read the question slay

these are just my answers could be totally wrong. also i put 6 and 7 as being different questions even tho they're the same question just different parts i cba to change every number now

(edited 10 months ago)

Reply 2

samrii

11

Original post by isobelmitchlel

1. i used suvat with s=3, u = 8, a = -9.8, t = ? then solving that i got t = 1.05 and t = 0.584s.
2. cannot remember, i know my answer was right coz i checked on the calculator, i think the top numbers of the fractions were 2 and 3? dk tho
3. 2/5x^5 + 2/5x^5/2 + c
4. i think the answer is 0.735N from looking on the other thread. i got 7.35N because i did some dodgy decimal converting clearly
5. i can't remember my answer to this but i think it was a pretty easy question to know if u got right bc u can just draw the graph on the calc. i think as above the two points were supposed to be 2 and -2 and when i put them into d^2/dx^2 i got -8 both times so they're both maximum.
6. this was a show question so the answers already on the paper.
7. i think i got 7/24 pi and 31/24 pi which i checked on the calculator (im not 100% sure that answer was for this question i can't remember)
8. as most people have said, i think 6 root 10 is right. that's what i got.
9. the bus question was awful. i drew the velocity time graph as the boy running up to the speed six and then just a straight line. cannot help with any other answers to that question!
10. yep, acceleration = 0.462.
11. can't remember what a was but b was defo 0.5. the period was pi, and then i can't remember what the answers were to the equation to solve. for some reason 2.72 is in my brain as one of the answers but i might have made that up.
12. sunflower one a = -194.5. the rate of change answer i put 29.6 days or somethng
13. i messed this one up coz i didn't include weight in any of my calculations so dumb
14. the first two e^x questions were both showing stuff so pretty easy to know if u got right. the integration one on that i think i got that when x = 1, y = -0.81 or something so that shows its below x axis.
15. first one was show that was just showing log1010 = 1. then the sequence is arithmetic bc u add 1 or log1010 each time. the last one i can't remember i think i did something like 50log10/20 + 1125 but idk.
16. first one was just a show question, second one i put theta bigger than 76 but apparently the answer also includes a 90 coz its acute and i didn't read the question slay

these are just my answers could be totally wrong. also i put 6 and 7 as being different questions even tho they're the same question just different parts i cba to change every number now

Made the exact same mistakes on 13 and 16 haha

Reply 3

OP

Original post by isobelmitchlel

1. i used suvat with s=3, u = 8, a = -9.8, t = ? then solving that i got t = 1.05 and t = 0.584s.
2. cannot remember, i know my answer was right coz i checked on the calculator, i think the top numbers of the fractions were 2 and 3? dk tho
3. 2/5x^5 + 2/5x^5/2 + c
4. i think the answer is 0.735N from looking on the other thread. i got 7.35N because i did some dodgy decimal converting clearly
5. i can't remember my answer to this but i think it was a pretty easy question to know if u got right bc u can just draw the graph on the calc. i think as above the two points were supposed to be 2 and -2 and when i put them into d^2/dx^2 i got -8 both times so they're both maximum.
6. this was a show question so the answers already on the paper.
7. i think i got 7/24 pi and 31/24 pi which i checked on the calculator (im not 100% sure that answer was for this question i can't remember)
8. as most people have said, i think 6 root 10 is right. that's what i got.
9. the bus question was awful. i drew the velocity time graph as the boy running up to the speed six and then just a straight line. cannot help with any other answers to that question!
10. yep, acceleration = 0.462.
11. can't remember what a was but b was defo 0.5. the period was pi, and then i can't remember what the answers were to the equation to solve. for some reason 2.72 is in my brain as one of the answers but i might have made that up.
12. sunflower one a = -194.5. the rate of change answer i put 29.6 days or somethng
13. i messed this one up coz i didn't include weight in any of my calculations so dumb
14. the first two e^x questions were both showing stuff so pretty easy to know if u got right. the integration one on that i think i got that when x = 1, y = -0.81 or something so that shows its below x axis.
15. first one was show that was just showing log1010 = 1. then the sequence is arithmetic bc u add 1 or log1010 each time. the last one i can't remember i think i did something like 50log10/20 + 1125 but idk.
16. first one was just a show question, second one i put theta bigger than 76 but apparently the answer also includes a 90 coz its acute and i didn't read the question slay

these are just my answers could be totally wrong. also i put 6 and 7 as being different questions even tho they're the same question just different parts i cba to change every number now

for 13 i put weight as positive not negative
😭 most of that looks really good though 👍

Reply 4

Original post by rrrosiegh

for 13 i put weight as positive not negative
😭 most of that looks really good though 👍

Yeah it's a trick question, and it's a pain cuz u need to use it for all the next questions so I think u lose accuracy marks for every single one after that

Reply 5

Original post by malymole1

Yeah it's a trick question, and it's a pain cuz u need to use it for all the next questions so I think u lose accuracy marks for every single one after that

usually i would be fuming about my dumb mistake but the paper was so much better than any past paper I've ever done that im just grateful to ocr. i stg if the stats and comp are impossibly hard now im gonna be so mad.

Reply 6

OP

Original post by malymole1

Yeah it's a trick question, and it's a pain cuz u need to use it for all the next questions so I think u lose accuracy marks for every single one after that

yeah i was thinking that, i had a look at a few past mark schemes and quite a few have A1FT, so even if your answer is wrong, as long as you used it in the correct manner then its a follow through mark, depends on the question though i suppose

Reply 7

OP

Original post by isobelmitchlel

1. i used suvat with s=3, u = 8, a = -9.8, t = ? then solving that i got t = 1.05 and t = 0.584s.
2. cannot remember, i know my answer was right coz i checked on the calculator, i think the top numbers of the fractions were 2 and 3? dk tho
3. 2/5x^5 + 2/5x^5/2 + c
4. i think the answer is 0.735N from looking on the other thread. i got 7.35N because i did some dodgy decimal converting clearly
5. i can't remember my answer to this but i think it was a pretty easy question to know if u got right bc u can just draw the graph on the calc. i think as above the two points were supposed to be 2 and -2 and when i put them into d^2/dx^2 i got -8 both times so they're both maximum.
6. this was a show question so the answers already on the paper.
7. i think i got 7/24 pi and 31/24 pi which i checked on the calculator (im not 100% sure that answer was for this question i can't remember)
8. as most people have said, i think 6 root 10 is right. that's what i got.
9. the bus question was awful. i drew the velocity time graph as the boy running up to the speed six and then just a straight line. cannot help with any other answers to that question!
10. yep, acceleration = 0.462.
11. can't remember what a was but b was defo 0.5. the period was pi, and then i can't remember what the answers were to the equation to solve. for some reason 2.72 is in my brain as one of the answers but i might have made that up.
12. sunflower one a = -194.5. the rate of change answer i put 29.6 days or somethng
13. i messed this one up coz i didn't include weight in any of my calculations so dumb
14. the first two e^x questions were both showing stuff so pretty easy to know if u got right. the integration one on that i think i got that when x = 1, y = -0.81 or something so that shows its below x axis.
15. first one was show that was just showing log1010 = 1. then the sequence is arithmetic bc u add 1 or log1010 each time. the last one i can't remember i think i did something like 50log10/20 + 1125 but idk.
16. first one was just a show question, second one i put theta bigger than 76 but apparently the answer also includes a 90 coz its acute and i didn't read the question slay

these are just my answers could be totally wrong. also i put 6 and 7 as being different questions even tho they're the same question just different parts i cba to change every number now

also wasnt the integration question 24x^4 or am i making that up (within the initial equation given) rather than 2x^4

Reply 8

Original post by isobelmitchlel

usually i would be fuming about my dumb mistake but the paper was so much better than any past paper I've ever done that im just grateful to ocr. i stg if the stats and comp are impossibly hard now im gonna be so mad.

Yeah stats paper is usually harder. In 2019 for an A* it was 84% paper 1, and 73% paper 2

Reply 9

Original post by rrrosiegh

also wasnt the integration question 24x^4 or am i making that up (within the initial equation given) rather than 2x^4

omg was it?! i definitely did not see that on my paper but maybe i misread it oh dear

Reply 10

Original post by rrrosiegh

also wasnt the integration question 24x^4 or am i making that up (within the initial equation given) rather than 2x^4

nah it was 100% 2x^4 rip

Reply 11

OP

Original post by isobelmitchlel

omg was it?! i definitely did not see that on my paper but maybe i misread it oh dear

no, no, honestly me memory is so bad for exams it was most likely 2x^4!!

Reply 12

OP

Original post by malymole1

nah it was 100% 2x^4 rip

lets just hope i read it right in the exam 😂😭

Reply 13

Original post by malymole1

nah it was 100% 2x^4 rip

phew i panicked there

Reply 14

For the one with the total distance the boy ran, I stupidly did it so the boy was accelerating the whole way. Was this question out of 3 marks? U guys reckon I got 1 mark?

(edited 10 months ago)

Reply 15

FiLS#9

leading on from the vectors question on page 5, does anyone remember what their answers for the acceleration and then the final velocity were?

Reply 16

samrii

11

Original post by malymole1

For the one with the total distance the boy ran, I stupidly did it so the boy was accelerating the whole way. Was this question out of 3 marks? U guys reckon I got 1 mark?

im sure you did. Don’t want to be that person, but it’s not healthy to stress about this exam. It’s already over so we can only do our best for the next one

Reply 17

sixthformapp

14

if I get like 50 in this but 70 in stats and 60/75 in the next du think it'll be enough for the A

Reply 18

Original post by sixthformapp

if I get like 50 in this but 70 in stats and 60/75 in the next du think it'll be enough for the A

yeah should be - that adds up to around 180 which is 2 marks above the 2019 grade boundaries. they're trying to bring the grade boundaries up because they were so low in 2022 but i still think they'll be lowered by a couple of marks - i don't think they'd go from 2022 grade boundaries straight to 2019 grade boundaries because its such a big difference. im thinking, depending on what stats and mech are like, should be 175ish for an A.

Reply 19