Physics, Chemistry and Biology: Post your doubts here!

[thats_me]

For question 4b,
I think if you must view the pin from down. This came as a question but the other way round as in they asked why do you need to view the pin from down, in one of the recent papers.

din get u :S

 

[sma786]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_w10_qp_61.pdf
Question 2, b (ii)
How do we find out the estimate?

 

[thats_me]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_w10_qp_61.pdf
Question 2, b (ii)
How do we find out the estimate?

I was stuck with the same question :| this is just estimating ,the room temperature is around 25 so reduce 33 to 25 for lets say 33-2=31-2=29 thn 29-1=28-1=27-1=26-1=25 now we subtracted 6 times so 6 *30=180 (30s is the time interval)
now the last temperature is 180s n we reached till room temp by another 180s so it will be 180 +180=360s

 

[Manobilly]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_w10_qp_61.pdf
Question 2, b (ii)
How do we find out the estimate?

Or in the marking scheme they said atleast 300s so anything greater than 3 is acceptable.

 

[Manobilly]

I was stuck with the same question :| this is just estimating ,the room temperature is around 25 so reduce 33 to 25 for lets say 33-2=31-2=29 thn 29-1=28-1=27-1=26-1=25 now we subtracted 6 times so 6 *30=180 (30s is the time interval)
now the last temperature is 180s n we reached till room temp by another 180s so it will be 180 +180=360s

I found the other question answer about the estimate resistance
Its 0.30/0.15 =2 Than multiply by 10.1 wil get 20.2 than divide by 2 to get resistance of X which will be 10.1

 

[thats_me]

I found the other question answer about the estimate resistance
Its 0.30/0.15 =2 Than multiply by 10.1 wil get 20.2 than divide by 2 to get resistance of X which will be 10.1

ahn thx i get the rest but y divide wid 0.15?

 

[Manobilly]

As for 0.15 it is 10.1 ohms.

 

[thats_me]

As for 0.15 it is 10.1 ohms.

Oh yes Physics drives me cRayzeeeeeeeeeeeeeeeeeeee :|

 

[Manobilly]

Finally! Just one more paper for physics than forget it for somedays.

 

[thats_me]

Finally! Just one more paper for physics than forget it for somedays.

YESssssss!!! & i Hope this Paper turns out to be the BEST for ever1!

 

[Manobilly]

Inshallah it will be easy dun worry,We all will do good Inshallah,are you taking chem also?

 

[thats_me]

Inshallah it will be easy dun worry,We all will do good Inshallah,are you taking chem also?

Inshallah! Yes i am wbu?

 

[Manobilly]

Yes Inshallah! Which variant?Which day?

 

[thats_me]

Yes Inshallah! Which variant?Which day?

phy variant 1 i guess n its on tuesday n chem the same i guess var1 on wed

 

[Manobilly]

Oh same here ,what time ,whats your country?

 

[thats_me]

Oh same here ,what time ,whats your country?

time 3:00 n ksa u?

 

[Manobilly]

3:00 Ksa time

 

[sma786]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_w10_qp_61.pdf
Question 3, (c) .. i m stuck since so long

 

[thats_me]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_w10_qp_61.pdf
Question 3, (c) .. i m stuck since so long

again the same thing i was breaking my head on :| and Manobilly explained above
Its 0.30/0.15 =2 Than multiply by 10.1 wil get 20.2 than divide by 2 to get resistance of X which will be 10.1

 

[sma786]

again the same thing i was breaking my head on :| and Manobilly explained above
Its 0.30/0.15 =2 Than multiply by 10.1 wil get 20.2 than divide by 2 to get resistance of X which will be 10.1

omg so much
where did u get the 0.15 fr0m?