Physics: Post your doubts here!

[Thought blocker]

Thank you so much, I get it now Take care

You too.

 

[Muskan Achhpilia]

Here :¬

Thank you!

 

[ritesh isuri]

where can i get ms for june 2014????

 

[Thought blocker]

where can i get ms for june 2014????

Yet they are not uploaded.

 

[Muskan Achhpilia]

Hi can anyone please explain the following MCQs to me, like the concept part-:


The answer is A(Whereas I thought it should be B)



The answer is D(I don't know how to derive the answer for this one at all)

Any help would be appreciated a lot, thank you so much!!

 

[ritesh isuri]

Hi can anyone please explain the following MCQs to me, like the concept part-:
View attachment 46172

The answer is A(Whereas I thought it should be B)

View attachment 46173

The answer is D(I don't know how to derive the answer for this one at all)

Any help would be appreciated a lot, thank you so much!!

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]

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.