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# AQA Physics unit 2

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• View Poll Results: How many marks do you think you achieved overall?
0-5
11
6.18%
6-10
2
1.12%
11-15
7
3.93%
16-20
6
3.37%
21-25
8
4.49%
26-30
13
7.30%
31-35
28
15.73%
36-40
30
16.85%
41-45
44
24.72%
46-50
17
9.55%
51+
12
6.74%

1. (Original post by a_homida)
Did anyone get 52 N for the boy doing pull-ups question?
I got 52 also
2. (Original post by Certified)
Yes, I took away 840 from the bigger number because you needed the resultant force in the equation. Paper was fairly hard.
I did that too DDD
3. (Original post by Monsor)
The one that compared the two graphs and said something about 40cm

Posted from TSR Mobile
Wasnt that the ultra sound? where the distance was 40cm and you had to convert it to 0.04m?
4. (Original post by Monsor)
You're meant to plus the voltage in a series circuit so you were meant to tick the third box, 9+3= 12V

Posted from TSR Mobile
I did this and hopefully it's correct
6. (Original post by a_homida)
Did anyone get 52 N for the boy doing pull-ups question?
you mean 52 watts
7. (Original post by Syyed_)
you mean 52 watts
What was the oil error question?
Thank You
8. Its actually 12m/s^2 isn't it as it said it increased TO 1850N from the 840N that was already keeping him stationary?
9. I loved the 6 marker omfg
10. did anyone get earth wire for that cable thing
11. Any guesses for the grade boundaries??
1a) what was the main error with the oil experiment (1mark)
I put human error because the peraon may make a mistake reading the stopwatch or marks on the glass tube. Not sure how correct that is though.

Also for tge rest of it, i put the drag force is greater than because it needed to be greater as the speed was greater, so to reach terminal velocity and get to a resultant force of 0, thedrag force needed to be higher as the weight force was higher
13. Yes
14. (Original post by SmithAmelia)
I did this and hopefully it's correct
It is right

Posted from TSR Mobile
15. (Original post by Ethanf8200)
Any guesses for the grade boundaries??
should be something like 40 for an A* as it was 41 for A* in 2013 and it was easier imo
16. (Original post by a_homida)
Did anyone get 52 N for the boy doing pull-ups question?
(Original post by a_homida)
52 Newton. I'm deffo wrong thou
Yes!
17. (Original post by Monsor)
It is right

Posted from TSR Mobile
Yes!
18. (Original post by user2k16)
did anyone get earth wire for that cable thing
It was live
19. (Original post by Kinnybin)
Woah that paper was intense despite my thorough revision. The calculations were really weird! In the oil ball bearer question, was "less than" the right answer?
yah due to faster speed
20. (Original post by SmithAmelia)
What was the oil error question?
Thank You
lmao i forgot most of the questions. What did u guys write for the scientist question? something about the universe blah blah.

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