General Thoughts: Physics (1 Viewer)

[OzKo]

Share your thoughts here.

 

[shadowdragon555]

It seemed really short to me? And I was expecting so much more on relativity then just a couple multiple choice... but gotta say feel pretty good with it

 

[armageddonmuscle55]

It seemed really short to me? And I was expecting so much more on relativity then just a couple multiple choice... but gotta say feel pretty good with it

what did u write about the long mark question

 

[shadowdragon555]

what did u write about the long mark question

Which one?

 

[theodore0307]

Band 6 come at me

 

[armageddonmuscle55]

Which one?

the one at the end

 

[shadowdragon555]

the one at the end

If that's the AC dominating DC I talked about how less energy is lost in transmission thus allowing for the distancing of power stations away from cities, therefore the harmful effects of pollution on humans are minimised, and I talked about how the slip ring commutator doesnt have a gap like in the split ring which causes sparks and problems under high velocity.

And that the slip ring commutator is a simpler design leading to less expensive maintenance and production, benefitting society in economical factors

 

[iStudent]

Stumbled on a few questions but I got them on the end
Should do ok. Couldn't get 1 question in my option.

 

[armageddonmuscle55]

If that's the AC dominating DC I talked about how less energy is lost in transmission thus allowing for the distancing of power stations away from cities, therefore the harmful effects of pollution on humans are minimised, and I talked about how the slip ring commutator doesnt have a gap like in the split ring which causes sparks and problems under high velocity.

And that the slip ring commutator is a simpler design leading to less expensive maintenance and production, benefitting society in economical factors

do u remember the question, I just wanna cross check it with my notes if I got it right or not

 

[shved]

WTF was the 0V question? I had no idea what they were asking

 

[shadowdragon555]

do u remember the question, I just wanna cross check it with my notes if I got it right or not

Something about why is AC better than DC in regards to the effects it has on society

 

[shadowdragon555]

WTF was the 0V question? I had no idea what they were asking

I think it was something to do with the stopping voltage? But I had absolutely no idea how to do it XD

 

[dshah73]

WTF was the 0V question? I had no idea what they were asking

My teacher had a look at it and he said that the diagram was misleading!!! most of the state won't get it

 

[dshah73]

It was an OKAY exam, but there were ALOT OF shitty questions :rage:

 

[TheAbsolutist]

Got caught stupidly on the power loss question and then the stopping voltage. Ugh.... other than that pretty fair paper, although the wording of some of the multiple choice questions was really iffy. (eg. there are fewer high energy photons at high frequencies, no commas.)

 

[cintaurus]

The graph if 0 stopping Voltage was just you had to draw over the same graph right?

 

[orcevalm]

lol idk if i got the projectile one right. option was alright except for the binding energy one :/ i also didnt know how to do the stopping voltage one like i drew another parallel line next to it and probs calculated the whole frequency wrong

 

[iStudent]

The threshold freq was around 9.9
radiation frequency was 12.8 ish

I'll admit I didn't get this q till last 10 minutes.
so work function was qV. (see next page post as to why)
Then you find threshold where KE=0
so hf=W. Find f your threshold frequency. Draw a line parallel then rest is easy

 

[iStudent]

lol idk if i got the projectile one right. option was alright except for the binding energy one :/ i also didnt know how to do the stopping voltage one like i drew another parallel line next to it and probs calculated the whole frequency wrong

The projectile q was 27 spaces down. around 3 spaces up

 

[screwuhsc]

WTF was the 0V question? I had no idea what they were asking

Yea ikr Wtf what did u gu write