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[bubbles1997]

Physics June 2004 MCQ# 39

 

[bubbles1997]

It is the equation of motion....., where x is the distance traveled, u is the initial speed(of a body), a is acceleration, and t is time....
Hope it helps....

when do we apply it?

 

[bubbles1997]

Speed and wavelength both decrease......

Thank you!

 

[Zuhsid]

when do we apply it?

When ever discussing the motion of any body, like if 3 of 4 values in the formula are given (relating to the motion of a body), u can find the fourth one by the formula!!
You can also use it when discussing motion relating to free fall(or when objects are thrown up into the air), in this case, "a" will be substituted by g(gravity)(value of 10), such that when the body is traveling up into the air , the value will be -10, and when coming down, it will be +10.....

 

[Zuhsid]

Thank you!

Welcome....

 

[passion hunter]

http://www.nuffieldfoundation.org/practical-physics/explaining-how-transformer-works
look at the second pic.....

thanks a lot

 

[AhsanAfzal]

why is the answer B?

 

[Saad Mughal]

why is the answer B?View attachment 27530

A potential divider works this way, if the resistance increases, the voltage also increases; if the resistance decreases, the voltage decreases.

 

[Zuhsid]

why is the answer B?View attachment 27530

It is a fact, that ..... If in a circuit, something has a higher resistance than another thing, it will have a higher voltage across it... and due to the fact that the total voltage is constant, so as the voltage across the first thing increases, the voltage across the other will decrease.....

 

[Kamihus]

well....idk about sciences fr sure, but last year, my islamiat teacher, who (according him) was the one to make the o/n 2007 islamiat ppr, said that the grade thresholds in gce are fixed (he was refering to islamiat and pk studies at that time) i.e. 90= a* 80=a 70=b and so on

This obviously isnt correct, if this is the case then As and A* would be almost impossible in these two, actually the thresholds for Pak. stud. of 2004 are available

 

[fatima0000]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w11_qp_21.pdf
Q 6) (a)(i)

 

[danial 234]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w11_qp_21.pdf
Q 6) (a)(i)

It would be two curve waves.

 

[Zuhsid]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w11_qp_21.pdf
Q 6) (a)(i)

any of the curve....
http://www.quarkology.com/12-physics/93-motors-generators/images/93D-pic-ac-generator-output.png

 

[TheStallion-Reborn]

This obviously isnt correct, if this is the case then As and A* would be almost impossible in these two, actually the thresholds for Pak. stud. of 2004 are available

where?

 

[danial 234]

where?

one of friend had his islamiat paper rechecked of 2012. he had almost 75 marks yet he had an A*

 

[AbbbbY]

well....idk about sciences fr sure, but last year, my islamiat teacher, who (according him) was the one to make the o/n 2007 islamiat ppr, said that the grade thresholds in gce are fixed (he was refering to islamiat and pk studies at that time) i.e. 90= a* 80=a 70=b and so on[/quote]


This alone negates him being eligible to be an examiner/paper setter.

I'm pretty sure he's fabricating the former, or talking about setting the internal paper.

 

[TheStallion-Reborn]

one of friend had his islamiat paper rechecked of 2012. he had almost 75 marks yet he had an A*

agreed ur highness(es) threshold for a* (in most cases) is gona be below 90....which makes me happy!

 

[Amnaa]

http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Physics%20(5054)/5054_s10_qp_12.pdf

why not C in question no. 11

 

[iamLbert]

Explain why nuclei do not easily come together?

 

[TheLeagueofShadows]

Why does voltage drop suddenly in saw tooth voltage?