# Multiple choice answers (1 Viewer)

#### tanuwidge

##### New Member
Can someone put them up?

#### M@ster P

##### Member
Can someone put them up?
yeh somewhat put it up, i can put mine up but they gonna be wrong lol

#### dekimasu

##### Member
here are mine, I'm a bit of a physics retard tho:
1C
2A
3C
4D
6A
7C
8C
9A
10B
11D
12D
13B
14C
15A

feel free to correct! (and you'll need to)

#### copeys

##### Member
I got a whole bunch of C's in the first column...

EDIT: Changed the A to C lol

Last edited:

#### max powers

##### New Member
I was thinking 5. C ???

#### Ostentatious

##### jfK1c45g2f4Of56Eyd4f57cxZ
Hey how did you calculate 2? I couldn't find the diameter of the earth on the data sheet

#### tanuwidge

##### New Member
Hey how did you calculate 2? I couldn't find the diameter of the earth on the data sheet
for question 2 u jet we to do the centripeal acceleration formula

#### tanuwidge

##### New Member
for question 2 u jet we to do the centripeal acceleration formula

A=v^2/r*

#### Ostentatious

##### jfK1c45g2f4Of56Eyd4f57cxZ
Mine:

1 C
2 A
3 C
4 D
5 B
6 A
7 C (looking back, it might be D)
8 C
9 D (guess)
10 B
11 D (guess, I figured the first graph should be a sine curve and the second should resemble a cosine curve)
12 C (guess, don't know what donor or acceptor levels are xD)
13 B
14 C
15 A (oh shit, is this B??)

#### Ostentatious

##### jfK1c45g2f4Of56Eyd4f57cxZ
I did that, but shouldn't r = 7*10^6 + (Radius of Earth)?

Otherwise, I just got A for it lol xD

##### Banned
here are mine, I'm a bit of a physics retard tho:
1C
2A
3C
4D
6A
7C
8C
9A
10B
11D
12D
13B
14C
15A

feel free to correct! (and you'll need to)
yea for 5 i was tossing up between b or c, i stayed with b so hopefuly its correct.
with question 9, i think the current went from R to P, which means the electrons go the other direction and hence a build up at R giving me the answer of C
i had 13 different, i got A, but i wasnt sure
the rest was cool

##### Banned
Mine:

1 C
2 A
3 C
4 D
5 B
6 A
7 C (looking back, it might be D)
8 C
9 D (guess)
10 B
11 D (guess, I figured the first graph should be a sine curve and the second should resemble a cosine curve)
12 C (guess, don't know what donor or acceptor levels are xD)
13 B
14 C
15 A (oh shit, is this B??)
pretty sure its C... the prac we did for inducing a current, my result said answer C was correct, (our prac was exactly the same setup) the copper followed the direction of the rotating magnet

##### Banned
Mine:

1 C
2 A
3 C
4 D
5 B
6 A
7 C (looking back, it might be D)
8 C
9 D (guess)
10 B
11 D (guess, I figured the first graph should be a sine curve and the second should resemble a cosine curve)
12 C (guess, don't know what donor or acceptor levels are xD)
13 B
14 C
15 A (oh shit, is this B??)
its in a uniform electric field... i think your answer is correct

#### Ostentatious

##### jfK1c45g2f4Of56Eyd4f57cxZ
I think 5 B is right, according to F = (Gm)/(r^2)

As for 9, my re3asoning was that eddy currents are formed in the thin conductor, so electrons would be concentrated around Q or S, but S was experiencing the most change in magnetic flux so more electrons would be concentrated there, due to the induced current, but I'm REALLY not sure hehe. I want the answer to it so bad xD

C
A
C
D
C
A
C
C
A
B
B
D
C
A

#### 00iCon

##### Member
1 C
2 A
3 C
4 D
5 C <too easy, at first i thought it was talking about force from solar wind
6 A
7 C
8 C
9 C
10 B
11 B
12 D
13 B
14 C
15 A
Those are my answers and they're the exact same as the guy behind me :S

#### Ostentatious

##### jfK1c45g2f4Of56Eyd4f57cxZ
its in a uniform electric field... i think your answer is correct
Thanks, I was thinking this because the field line would just go straight through all of them at the same magnitude.

#### Ostentatious

##### jfK1c45g2f4Of56Eyd4f57cxZ
4 C can't be right:

x falls with a horizontal velocity lower than that of y, and both have the same initial vertical velocity and acceleration. It has to be D.

#### untouchablecuz

##### Active Member
BCCCCACCABDDACA

can someone mark me

i choked and i dont wanna do it

#### GT03

##### New Member
I think 5 is B. if u look at the universal law of gravitation, F decreases with increasing distance.
As for 9 i think it is A. using right hand rule and lenz's law, opposing force goes up and field is into the page...so positive current goes to the right and electrons are at in the opposite side at P..anyone agree?