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# EDEXCEL A2 Physics EXAM Unit 4 Physics On The Move 20th June 2016 (NOT I-A-L) Watch

1. (Original post by Miito)
That moment when you write "the hydrogen ion has no charge".... hydrogen ION has no charge fml 😂
yes it does, it's charge is +1 isn't it?
2. (Original post by Connorbwfc)
I got 16.7% for the percentage charge decrease question.

23.8m for the radius of the path of the bike.
2.09ms^-1 for speed of bike.

Some multiple choice answers I remember:

1. Something to do with magnetic field causing circular motion
Area under graph = change in momentum
1/root(6)
Half charge on one of particles
Anti-up Down
0.024N
I got all the same answers as you! Apart from the % one. I got 66% and I think my radius was 22m
3. (Original post by Ezio.)
Easy exam. I got 33.3% for that question
Yeah I got that too
4. (Original post by eleanor135)
Yeah I got that too
What did you get for the radius of the bike
5. (Original post by lilywatts16)
I got 67% i think!
I got 33% for the percentage decrease question
6. (Original post by Ahleazy)
What did you guys get for the radius of the bike? I got 20 point something meters, I feel as if this value is too large, but I'm unsure
I got 20.4m.
7. (Original post by SonicTails19)
I got 20.4m.
I got 20.4m too
8. (Original post by eleanor135)
What did you get for the radius of the bike
20.4 m i think wby
9. Radius of bend like 20.4m
10. For Q11 wavelength i got 2.1×10-11 i think or ×10-something else.
11. What did people get for the conservation of momentum question where you had to work out the velocity of the glider? Also was the collision elastic or in elastic?? Think I made a silly mistake typing it into my calculator . Thought on A* grade boundary???
12. It was 20.4 for radius, but for the percentage it was to 2 sig figs 16.7 = 17%
13. (Original post by Qcomber)
For Q11 wavelength i got 2.1×10-11 i think or ×10-something else.
Yep me too
14. Conservation of momentum velocity Q anyone get 0.5m/s?
15. and that it's inelastic?
16. For the magnetic force on the bike question, what value did people get?
17. (Original post by Mustafa347)
It was 20.4 for radius, but for the percentage it was to 2 sig figs 16.7 = 17%
Damn it got 33%
18. (Original post by Ahleazy)
What did you guys get for the radius of the bike? I got 20 point something meters, I feel as if this value is too large, but I'm unsure
I got 20.4
19. (Original post by _leenz)
I got all the same answers as you! Apart from the % one. I got 66% and I think my radius was 22m
I mean't 20.4m, I got confused there.
20. (Original post by KINGYusuf)
and that it's inelastic?
Yippeeee yessss

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Updated: June 26, 2016
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