physics unit 4 2013 paper discussion

[candy123]

how was the paper guys. how did you find it ?

 

[Alexandra_Lin]

how did you find it?

 

[Choco<3]

Mine was okay,.wbu people?

 

[sugoii]

mine sucked alright.

 

[Dr_KrEaTer43]

I actually found it quite difficult

 

[candy123]

i kidna found it annoying __- ... dint like the paper at all -_-. some of it was okay but there were two question like completely whihc i think i may get wrong ..

 

[Outofideaz]

Wow guys, you haven't started discussing the answers yet. Well, I made silly mistakes, the question about the amp-clamp, like daymm!!! I made up stuff there about the frequency and stuff. Couldn't do the initial current question, and the rate of increase of voltage was the gradient of the graph initially right? In the oil drop qs I got 3 electrons added to it. And the last question, like wth! I wrote the collision is inelastic, so k.e is not equal to p.e, correct?

 

[Dr_KrEaTer43]

for the average* initial current question, I used the equation Q/t = I where t is 10ms (10x10^-3) to get 0.05A??

 

[Choco<3]

Wow guys, you haven't started discussing the answers yet. Well, I made silly mistakes, the question about the amp-clamp, like daymm!!! I made up stuff there about the frequency and stuff. Couldn't do the initial current question, and the rate of increase of voltage was the gradient of the graph initially right? In the oil drop qs I got 3 electrons added to it. And the last question, like wth! I wrote the collision is inelastic, so k.e is not equal to p.e, correct?

Me too.. I actually got around 3.25 and i rounded it.

 

[Choco<3]

for the average* initial current question, I used the equation Q/t = I where t is 10ms (10x10^-3) to get 0.05A??

Where did u get the charge Q?

 

[Outofideaz]

I got 0.05A too, but the current in 10ms i couldn't so the question about finding the resistance after it was left blank

 

[Choco<3]

I got 0.05A too, but the current in 10ms i couldn't so the question about finding the resistance after it was left blank

How did u get 0.05 A ?