multiple choice (2 Viewers)

[ShaunSmith]

heres my answeres probobly wrong, i though the exam was pretty hard.
what the hell was with MJ question?

1b 2a 3c 4b 5a 6d 7a 8c 9a 10b 11d 12b 13a 14d 15b

 

[maverick86]

Yeah I got the same answers, except:

10 A though im not confident and dont care to work it out now

14 D Im pretty sure that's correct

 

[phizz]

Generally same as yours apart from 3. D, 6. A, 10. A, 11. C, and 14. B

(r/2)^2 = r^2 / 4. and so on for 3
Reletive to the vehicle, motion seems to go straight down for 6
Right hand palm rule for 10
guess for 11, so could be wrong
F = hf to find 14.

Thats in a nutshell how mine were different.

 

[bevstarrunner]

I was all over the place...I got:
1b 2b 3d 4b 5a 6a 7a 8c 9b 10a 11c 12b 13a 14d 15a

 

[grimreaper]

3 is actually D i think, I got A for 10 and B for 14 (you answered frequency not wavelength)

Edit: oh and i think 11 is C

 

[maverick86]

oh yeah, thats right, 3 i got D..

6 is D cos the vehicle is accelerating

10 and 14 i agree with and not confident about 11

 

[bevstarrunner]

5 is def. A

Light ALWAYS arrives at speed c

 

[gerardk]

dont count on mine but i got 1)B 2)A 3)D 4)B 5)A 6)A (wrong) 7)A 8)C 9)A 10)A 11)D 12)B 13)A 14)B 15)C

 

[eska]

1b 2a 3d 4a 5a 6c 7a 8c 9b 10b 11c 12b 13a 14a 15b

 

[Kelvy]

I got 3 as D and im pretty confiendent that is right.

I got 6 as B - most ppl in my year put D but the intellectuals in my yr say its B

I got 11 as D

 

[eska]

6 is def. A

Light ALWAYS arrives at speed c

lol thats for q5 i beileve

 

[Charon.]

those were some pretty tough and long multiple choice. too much caculating not enough easy gift marks

 

[gerardk]

I got 3 as D and im pretty confiendent that is right.

I got 6 as B - most ppl in my year put D but the intellectuals in my yr say its B

I got 11 as D

yeah its B im pretty sure, not D because it is accelerating uniformly

 

[bevstarrunner]

yeah, but at least the test shifted back from full of theory to many calculations like physics should be...

 

[The Bograt]

6 is B, because the frame of reference is the train, not stationary observer. Also, it is accelerating uniformly, giving it the slant.
I said 11 was D, since they both use eddy currents (and hoped that this was to do with conservation of energy)
My answers:
1. B
2. A
3. A
4. B
5. A
6. B
7. A
8. C
9. A
10. A
11. D
12. B
13. A
14. B
15. B

 

[Kelvy]

For multiple choice 6, I remember this type of question in my trials and i said the path of the ball was parabolic like in D and i got CROSS CROSS CROSS SLASH HACK from my teacher lol! So i kinda learnt that lesson..........it should be B

 

[Shimtek]

for 4 i got (c)

8\squareroot of 1-0.6

= 8\square root of 0.4
=12.6

as for 6 its DEFINATELY a)
since when theres no air resistance it will keep the same horiizontal velocity of the vehicle

 

[grimreaper]

using the right hand palm rule, I'm certain 10 is A

 

[Kelvy]

Its the square root of 1 - (0.6) SQUARED! not 1-0.6

 

[bevstarrunner]

for 4 i got (c)

8\squareroot of 1-0.6

= 8\square root of 0.4
=12.6

8/sqrt(1-0.6²)

gives B