Physics: Post your doubts here!

[Muskan Achhpilia]

Thank you so much!Well this is from the past papers.

for mcq 15, this if because when u are falling u do not become lighter! the weight of the body remains constant but air resiatance increases such that (mg - air resistance), which is the resultant force decreases.


for question 18, u use v^2= u^2 +2as,

u look for acceleration using, u=10 ms-1 and s=10m,

u will get a=-5ms-2

since same braking force, deceleration will be the same for the second motion,

u reuse same equation of motion,

replace u by 30 and a by -5 search for s

u will get s=90

btw where did u got this question? i got it for my mock exams

 

[Muskan Achhpilia]

Can anyone please explain me the following question-


The answer given in marking scheme is
'when CG below pivot, weight acts through the pivot
(so) weight has no turning effect about pivot'

However I did not understand it so please help.

 

[Muskan Achhpilia]

Can anyone help with the following MCQs

Answer A


Answer B


Answer C

Thank you so much!

 

[Tamara Tango]

guys, do you have any suggestions how to study physics A level?? i have took the AS on oct nov 2013 and retook AS on may june 2014. it seems like i got no idea how to improve the score(although i havent received my may june 2014 result, but i knew it was terrible). Please help me cause i wanna take a level this oct nov 2014. thankk youuu

 

[Tamara Tango]

Can anyone help with the following MCQs
View attachment 46182
Answer A

View attachment 46183
Answer B

View attachment 46184
Answer C

Thank you so much!

if i am not mistaken, for number 13 ->
2F x 0.6 = 900 x 0.2
1.2 x F = 180
F = 180/1.2 = 150 N

 

[Thought blocker]

Muskan Achhpilia, I cannot see any picture from my cheap mobile, sorry. Will solve it as I get my Iphone back or tell me the year and question number, if in hurry.

 

[Thought blocker]

guys, do you have any suggestions how to study physics A level?? i have took the AS on oct nov 2013 and retook AS on may june 2014. it seems like i got no idea how to improve the score(although i havent received my may june 2014 result, but i knew it was terrible). Please help me cause i wanna take a level this oct nov 2014. thankk youuu

Look, just clear your all concepts. Remember all basic units. Go to my thread for materials. Just clear all concepts and you will clear it easily.

 

[Tamara Tango]

Look, just clear your all concepts. Remember all basic units. Go to my thread for materials. Just clear all concepts and you will clear it easily.

thanks for your advice

 

[Thought blocker]

thanks for your advice

Aha.

 

[Wolfgangs]

Answer please

 

[chishtyguy]

Answer please

Is the answer D??

 

[Thought blocker]

Answer please

I cannot open this FILES !!!!!!!!!!! PLEASE TELL ME LINK OR WAIT TILL I GET MY LAPTOP BACK -_-

 

[Wolfgangs]

It is paper 11 M/J 2014 Q18.

 

[Thought blocker]

It is paper 11 M/J 2014 Q18.

2014 paper is not with me, Its in my Laptop, :/ Sorry. :/ If it is a repeated question, tell me.. coz I have other papers in my mobile.. I know many questions are repeated. So if you know tell me.

 

[Muskan Achhpilia]

if i am not mistaken, for number 13 ->
2F x 0.6 = 900 x 0.2
1.2 x F = 180
F = 180/1.2 = 150 N

Thank you so much!

 

[Muskan Achhpilia]

Muskan Achhpilia, I cannot see any picture from my cheap mobile, sorry. Will solve it as I get my Iphone back or tell me the year and question number, if in hurry.

Thank you anyway for your effort, and I actually don't remember the year of the paper...

 

[Thought blocker]

Thank you anyway for your effort, and I actually don't remember the year of the paper...

Are your doubts solved?

 

[Muskan Achhpilia]

Are your doubts solved?

No, not really....If you can then it would be great!

 

[Thought blocker]

No, not really....If you can then it would be great!

I said I cant see that questions. Tell me the the year. Nothing else.

 

[AnujaK]

Heeyy everyone! I've started a site that'll give you SOLVED past papers! Really helpful! Do check it out Also has some worksheets and revision notes!
https://sites.google.com/site/fromatoscom/