phys p 1 a small help

[sweet.sugar]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_s12_qp_12.pdf

q 33 and 34

thanks in advance

 

[umair1161]

Q 33: Answer= C

this is because first u find the current in the whole circuit....R=V/I and therefore.... I=V/R

total resistance in whole circuit= R1+R2 (they are in series)=10+20=30

12/30= 0.4

now u put that same current with teh resistor at Y: R=V/I

V=RI= 20*0.4

8 V!

 

[sweet.sugar]

Oh thx alot 4 the help

 

[umair1161]

No problem!

 

[umair1161]

Q 34: Answer is D!

this is because the total current= 10A

a fuse should be a bit more to be on the safe side and therefore....it is 13A (D)

hope this helps!

 

[cookiemaker]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_s12_qp_12.pdf

q 33 and 34

thanks in advance

Q 34 is D. The fuse values of any fuse are 3 A, 5 A and 13 A. The total current in that circuit is 10 A so the fuse cannot be the same (10 A) it has to be higher which leaves 13 A as the only option.

 

[inquisitiveness]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w10_qp_13.pdf
Q35.....
how can the answer be C without A being correct?D: dont they explain each other

 

[omaaaar]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_s12_qp_11.pdf
Q8 how is the answer C,the upward and downward forces are equal so the handle shouldnot move
Q10 why gravitational energy ,at point Y gravitational energy will be zero
Q18 in convectiondoes the liquid expand or the molecules in the liquid will expand
Q23 could you tell about the characteristics of the image formed by a plane mirror
Q33 could you explain no idea​

 

[Othman]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w10_qp_13.pdf
Q35.....
how can the answer be C without A being correct?D: dont they explain each other

I think charge is responsible for electric shock not current.

 

[omaaaar]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w11_qp_11.pdf
Q7 why is the answer C option B also has two forces acting in the same direction
Q11 no idea
Q31 why and how is the answer C
Q38 donot know at all

 

[nononona]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w11_qp_11.pdf
Q7 why is the answer C option B also has two forces acting in the same direction
Q11 no idea
Q31 why and how is the answer C
Q38 donot know at all

Q 7 because b will cause the beam to be removed while c will push it downwards hence downward force= upward force
Q 11 that is a manometer it is a device that compares the atmospheric pressure to that of another gas since the water was pushed towards the side with atmpospheric pressure then the gas has higher pressure so to calculate the pressure of the gas we add the difference between the doted line and the water that is the addtion of both 10 s which adds up to 20 plus the original atmospheric pressure hence D
Q 31 the higher the resistance the more the voltage so more resistance with lamp 2 hence brighter while less with lamp 1 hence dimmer
Q 38 radioactive decay is a spontaneous reaction so it will not be affected by the increase or decrease in temperature hence B

 

[SIstudy]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w12_qp_11.pdf
Question 33

 

[$$AK$$]

URGENT
can u help me with these doubts and explain them to me
.0625/M/J/05/ Q27
.0625/O/N/05/Q15 and Q31 AND Q39
.0625/M/J/07/Q20
.0625/O/N/07/Q16 and Q 17
.0625/M/J/08/Q10 and Q38
Thnx

 

[ZaqZainab]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w12_qp_11.pdf
Question 33

so you know if we connect a lamp instead of the voltmeter what happens? if not you have to learn it
so if it was a lamp P wold be dimmer and Q brighter
that means more current on P than at Q
MORE current MORE Voltage using Current= Voltage/Resistance
so More voltage on Q than on P

 

[$$AK$$]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w09_qp_12.pdf
can u help me with Q7
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w10_qp_11.pdf
and Q5
Thnx

 

[JagRoss]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w09_qp_12.pdf
can u help me with Q7
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w10_qp_11.pdf
and Q5
Thnx

Forces unbalanced.
1n more to right.
If forces=equal then constant speed or stay still.
Forces not equal so acceleration.

 

[JagRoss]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w09_qp_12.pdf
can u help me with Q7
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w10_qp_11.pdf
and Q5
Thnx

Q5
Only weight is force.

 

[$$AK$$]

In paper 1 physics there was a question about the work done and power and there were graphs in the choices .. What were your answers

which year is this?

 

[$$AK$$]

2013

we didnt do it
now i am going to the exam
how was the paper??