AS Physics P1 MCQs Preparation Thread.

[Obsidian Fl1ght]

Okay so this problem is like parallel and series circuit. just imagine extension as resistors, and if you want overall k then find inverse of overall x. or otherwise the otherway if parallel then k would all add up for overall k. You do it yourself now and see if you got correct

Hey, can u elaborate some more on this method?

 

[TaffsAsLevel]

Hey, can u elaborate some more on this method?

If a spring is in parallel won't they be more stiff? usually they give identical spring so it is easier, so if 2 springs on parallel their stiffness doubles and the extension just inverse it so 1/2 x, it is the opposite for series where you add the all the x and find inverse of k

 

[Obsidian Fl1ght]

If a spring is in parallel won't they be more stiff? usually they give identical spring so it is easier, so if 2 springs on parallel their stiffness doubles and the extension just inverse it so 1/2 x, it is the opposite for series where you add the all the x and find inverse of k

Hmmm... I got it now.
Thanxx.

How's the prep going?

 

[xtremeforums]

can someone please explain question 33... The correct answer is A
https://www.xtremepapers.com/community/threads/troubles-in-chem-p1.27464/

 

[Obsidian Fl1ght]

can someone please explain question 33... The correct answer is A

https://www.xtremepapers.com/community/threads/troubles-in-chem-p1.27464/

Uhhh q33 where?

 

[TaffsAsLevel]

Hmmm... I got it now.
Thanxx.

How's the prep going?

Preps fine just momentum is a bit confusing when it comes to sign and directions. I don't do yearly I do it chapter by chapter. How about you?

 

[Ahmad Zaeem]

guys i saw some statments regarding energy and mass laws....
can some one guide me plss
it was like this
THE FIRST NEWTONS LAW IS A CONSEQUENCE OF SECOND LAW ....
what about conservation of energy or mass ....they are the consequence of what ???
Conservation of linear momentum is a consequence of what ????

 

[Obsidian Fl1ght]

Preps fine just momentum is a bit confusing when it comes to sign and directions. I don't do yearly I do it chapter by chapter. How about you?

It's fine-ish. Have to go over the syllabus once though.
Yeah = momentum gets me too. And that's clever.
Have u done the frequencies nd wavelengths of the waves in the electromagnetic spectrum? I mean, learnt them?
CTRL + Q to Enable/Disable GoPhoto.it

 

[itallion stallion]

wat is (P) and (Q)

P means at point p and Q means at point q

 

[Kyusam]

May /June 2012 P12 Qs no 13 30 and 31 plss ..need concept!!
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_12.pdf

May /June 2012 P12 Qs no 13 30 and 31 plss ..need concept!!
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_12.pdf

Heyy.....can you explain Q 30 for me than please

 

[Ahmad Zaeem]

It's fine-ish. Have to go over the syllabus once though.
Yeah = momentum gets me too. And that's clever.
Have u done the frequencies nd wavelengths of the waves in the electromagnetic spectrum? I mean, learnt them?
CTRL + Q to Enable/Disable GoPhoto.it

Yeah man can you post em up ....i need it too!!

 

[Obsidian Fl1ght]

When an object is in vacuum, it still moves with acceleration due to free fall... Is this correct?

 

[Obsidian Fl1ght]

Dude here ya go:

Yeah man can you post em up ....i need it too!!

WAVELENGTHS (m)



Gamma Rays 10^-12

X-Rays 10^-10

UV Rays 10^-8

Visible Light 5 x 10^-7

Infra Red 10^-5

Microwaves 1mm ---> 10^3

Radiowaves 10^-3 -----> 1Km


All these waves will have same speed... so just put in v=f lamida to get the frequencies.

 

[salvatore]

http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_s03_qp_1.pdf
Someone please help me with qn no. 5.. an explanation will be appreciated.

 

[HorsePower]

http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w12_qp_12.pdf
Q 30
plz help

 

[Meesam]

plz can anyone solve q33..!
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s10_qp_11.pdf

 

[Kyusam]

http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_s03_qp_1.pdf
Someone please help me with qn no. 5.. an explanation will be appreciated.

It's accurate to 3% and 3/100 = 0.03 which is 2 s.f. And here only 330 m/s is given to 2 s.f.

 

[Obsidian Fl1ght]

The uncertainty (accuracy) in this result is 3%
First calculate it: It's 9.8298
U must remmbr that uncertainties are ALWAYS written correct to 1 SF!
So, the above correct to 1 SF is:
10
Uncertainty will be 10 m/s
Also, remmbr that the calculated answer (speed 327.66 u have), is DEPENDENT on the uncertainty.
I mean that the decimal places (or accuracy in this case) of the speed is determined by the uncertainty.
Uncertainty (accuracy - and let's refer them to be the same thing here for now), is 10.
So speed will be correct to 10m/s

ie 330m/s

That is all.
SO:
Find uncertainty first.
Make it correct to 1 sf
Write calculated value correct to the uncertainty.

eg:
X = 34.5444 m
Uncertainty = 0.00498 m
Make uncertainty 1sf = 0.005m
Write X correct to the uncertainty ie 3dp
X = (34.544 +/- 0.005) m

Tadaa

 

[Sara syed]

In q 17 simply use P=Fv.
In q 31:the resistance of each wire wll be 4 ohm.using V=IR calculate resistance for relay that comes 26.67.total resistance will become26.67+8=34.67ohm.multiply it with the current and u will get the voltage.
In Q 13 weight always acts downwards.
dont know q2.

THX but the answer to 17 is A not D so it's showin the opposite:S

 

[Sara syed]

explain winter11 paper 11 question5