Multiple Choice (2 Viewers)

[weirdguy99]

EMF does get induced, but there is no induced current

Regarding Question 17, is it A or B? Shouldn't it be A since it's a linear expression?

If 17 is A, then 20/20

 

[Fizzy_Cyst]

Current independent?

Current is a controlled variable.

 

[Fizzy_Cyst]

Regarding Question 17, is it A or B? Shouldn't it be A since it's a linear expression?

If 17 is A, then 20/20

It's not linear, its hyperbolic

 

[Wight]

Regarding Question 17, is it A or B? Shouldn't it be A since it's a linear expression?

If 17 is A, then 20/20

From memory B, because when you pair a couple of equations together Ek was inversely proportional to lambda...I'll put some working out..

hyperbola (inversely proportional)

 

[weirdguy99]

It's not linear, its hyperbolic

I'm looking at a graph of it on the Jacaranda book, and it's just a straight line.

 

[Fizzy_Cyst]

That would be KEmax vs frequency

It was asking for KEmax vs wavelength

 

[cheschirecat]

I'm looking at a graph of it on the Jacaranda book, and it's just a straight line.

Yes but it's probably a graph with frequency in the x axis in this case we have wavelength in the x axis.

 

[weirdguy99]

That would be KEmax vs frequency

It was asking for KEmax vs wavelength

Good point hehe, I just thought it would be flipped over.

 

[2g1b]

How did you answer the question with the satellite being slowed down?

 

[Wight]

Seemed to me to be a toss up between B and C. Looking back at it now it's most likely B as it isn't always constant thrust...I'm a little curious about this one too.

 

[weirdguy99]

Seemed to me to be a toss up between B and C. Looking back at it now it's most likely B as it isn't always constant thrust...I'm a little curious about this one too.

You assume thrust is constant.

 

[Fizzy_Cyst]

How did you answer the question with the satellite being slowed down?

?? Which MC was this?

 

[weirdguy99]

?? Which MC was this?

I think he means question 20..

 

[Fizzy_Cyst]

I think he means question 20..

oic, but was the constant thrust answering this guys q?

Constant thrust was Q16, but thrust has nothing to do with a stable orbit? the answer for 16 is B.

 

[BadMeetsEvil]

what's the answer for 13? I got B..

 

[Fizzy_Cyst]

what's the answer for 13? I got B..

13 is A, Arsenic is type 5, therefore more free electrons

 

[BadMeetsEvil]

13 is A, Arsenic is type 5, therefore more free electrons

fahhh just realised that!!! I was looking at the oxygen group and saw arsenic on the group before it so I thought arsenic was in group 3... Exam pressure got me again.

18/20 then.... I could've gotten 20/20 sighs

 

[zhuang281]

99.9% sure these answers are right, i went up to a phys teacher to confirm my answers were correct lol.
1.C
2.B
3.B
4.C
5.B
6.C
7.C
8.A
9.B
10.D
11.D
12.A
13.A
14.A
15.C
16.B
17.B
18.B
19.D
20.D
Im more then happy to explain reasoning if you wish

 

[Hayzazz]

99.9% sure these answers are right, i went up to a phys teacher to confirm my answers were correct lol.
1.C
2.B
3.B
4.C
5.B
6.C
7.C
8.A
9.B
10.D
11.D
12.A
13.A
14.A
15.C
16.B
17.B
18.B
19.D
20.D
Im more then happy to explain reasoning if you wish

Woot, that means I got 20/20

 

[Wight]

Fark...2 definitely wrong. 1 other possibly wrong but I can't remember what I put... so meh.