Biology; Chemistry; Physics: Post your doubts here!

[princess Anu]

I Dont understand whats the point of using potential divider if the voltage already gets divided in a series circuit
and if we move it towards the potential divider the resistance increases and voltage decreases? is that the way this works?

 

[Awesome12]

was the graph in bio paper
a best fit curve or a smooth curve?

Both. I wish they'd let us use flexicurves :|[/quote]
You can use flexicurves

 

[Fate0]

I Dont understand whats the point of using potential divider if the voltage already gets divided in a series circuit
and if we move it towards the potential divider the resistance increases and voltage decreases? is that the way this works?

But you cant control the voltage in that. You can control the voltage in this

Is Flemings right hand rule a part of our syllabus?

Yes it is.

 

[Maganius]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w12_qp_42.pdf

Q3 a

 

[exploded diper]

i did HUGE SILLY MISTAKES....I MEAN HUGE.....

 

[Fate0]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w12_qp_42.pdf

Q3 a

 

[Maganius]

View attachment 41427

thanks I was confused about m=20 part.
Btw, from what I've noticed, ATP just test ours common sense.

 

[Faizan Muhammmad]

It's the last question right?
Dish .
Different Amount.
Control.
Growth.



Always do the graph first. Some people say do it in the last but sometimes if you mismanage time, you're in a rush and you lose those free4/5 marks.
And you need to leave 10 mins for checking. 50 mins left. Do graph on in 15, the rest in 11 mins each.

same here

 

[Maganius]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w12_qp_42.pdf

Q4 c iii

 

[Fate0]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w12_qp_42.pdf

Q4 c iii

c iii) ?
i assume it's c i) --> the ray of light is not perpendicular / at 90 degress to the surface.

 

[Maganius]

c iii) ?
i assume it's c i) --> the ray of light is not perpendicular / at 90 degress to the surface.

Ops! c ii

 

[Awesome12]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w05_qp_4.pdf
Question 3 (a) (ii)
My physics sir said it remains constant, and that it NEVER CHANGES. Can someone explain this?

 

[Fate0]

Ops! c ii

 

[Fate0]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w05_qp_4.pdf
Question 3 (a) (ii)
My physics sir said it remains constant, and that it NEVER CHANGES. Can someone explain this?

It will remain constant. That is the answer.

 

[Awesome12]

In such an experiment, http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w05_qp_4.pdf (QUestion 3 (b))
what will happen if
I move the lens towards the screen
Move object away from screen
Move object towards the screen

 

[Fate0]

In such an experiment, http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w05_qp_4.pdf (QUestion 3 (b))
what will happen if
I move the lens towards the screen
Move object away from screen
Move object towards the screen

No effect in first i think.
Blurred as rays converge before screen.
Blurred as rays converge after screen.

 

[Awesome12]

No effect in first i think.
Blurred as rays converge before screen.
Blurred as rays converge after screen.

It will remain constant. That is the answer.

Thanks

 

[Mahnoorfatima]

Any guess if verneir caliper or micrometer would come in the paper? cause if it does, Im screwed. :'(

 

[Dark Destination]

Any guess if verneir caliper or micrometer would come in the paper? cause if it does, Im screwed. :'(

It's easy. What do you find hard about it?
Taking readings?

 

[Fate0]

Any guess if verneir caliper or micrometer would come in the paper? cause if it does, Im screwed. :'(

It probably wont.