General paper discussion

[Khadija_1234]

Could there be another reason for the voltmeter question? :S other than the polarity change?

 

[robinhoodmustafa]

u wrote u=45.1 it should be 15.1. it was a common mistake

do they deduct marks if scaling is not done properly even though graph is made correct

 

[robinhoodmustafa]

Could there be another reason for the voltmeter question? :S other than the polarity change?

Um.
I wrote less current so less emf will be induce and Voltmeter reading will decrease

 

[robinhoodmustafa]

Listen if my curve crossed the space of the graph that they gave us by 1 mm, will I be penalised for it :s cause everyobe I know only took less than 75% of the graph paper to draw their curve (which usually leads to a loss of marks)...so yeah what was the better approach?

 

[Saad Mughal]

Saad Mughal. Longest Measuring tape isn't even 200m lol, how can it be 300m. I think our answers are correct, the ones who mentioned the speedometer, watch, or trip distance device.

You copied that from Wikipedia. Khair, the speed graph thing doesn't seem sensible to me. I think either measuring tape (because of the lenient marking) or trundle wheel should be correct.

 

[Saad Mughal]

do they deduct marks if scaling is not done properly even though graph is made correct

Awkward scales such as 3,6,9... ; 7,14,21... are penalized.

 

[robinhoodmustafa]

Awkward scales such as 3,6,9... ; 7,14,21... are penalized.

I took 10-10 scale on x and y axis

 

[Saad Mughal]

I took 10-10 scale on x and y axis

I don't think it it completely appropriate but if your shape and plotting was correct, you should get the mark.

 

[Khadija_1234]

Um.
I wrote less current so less emf will be induce and Voltmeter reading will decrease

I wrote that the needle got stuck due to the friction between pivot and needle. I think it's incorrect

 

[thementor]

You copied that from Wikipedia. Khair, the speed graph thing doesn't seem sensible to me. I think either measuring tape (because of the lenient marking) or trundle wheel should be correct.

agreed...

 

[thementor]

I wrote that the needle got stuck due to the friction between pivot and needle. I think it's incorrect

yes it is incorrect..it is not a suitable reason.......

 

[Snowysangel]

That's what my graph looked like, but the first reading crossed the spacing of the graph by a mm so I plotted it slightly above the graph paper...would that be marked correct? Cause if u take either 5 or 10 units per cm, the curve would fit in much less than 75% of the graph paper, which would result in your being penalised :S

 

[thementor]

That's what my graph looked like, but the first reading crossed the spacing of the graph by a mm so I plotted it slightly above the graph paper...would that be marked correct? Cause if u take either 5 or 10 units per cm, the curve would fit in much less than 75% of the graph paper, which would result in your being penalised :S

any graph on the paper should occupy the space allowed if you take scales that occupy at least 50% of the graph paper provided.......
even if you did make a mistake in drawing your graph, a max of 1 mark or a penalty PEN-1 can be applied...so no worries...

 

[robinhoodmustafa]

I wrote that the needle got stuck due to the friction between pivot and needle. I think it's incorrect

Because they said that when he move infront of the Panel the reading decreased so we have to relate it with current

 

[ijlalm]

for everyone's information if the child used a measuring tape...the reading would be full of errors and perhaps parallax errors...and the road may not be straight or levelled....And Another thing IT WOULD MAKE HIM OLD AND HAIR GROW WHITE..so he may not bend properly and measure due to his bad back..

 

[Shadow]

Could there be another reason for the voltmeter question? :S other than the polarity change?

Nope, Can't think of any other suitable explanation

 

[Shadow]

I don't think it it completely appropriate but if your shape and plotting was correct, you should get the mark.

i think i also used the 10,10 marking on both axes, 2 cm for 10, 1 cm for 5. But i only marked the 10 markings. Is it inappropriate?

 

[HDIWAN]

yar in the solar cell question was it necessary to attach a resistor in the circuit?

 

[Khadija_1234]

Because they said that when he move infront of the Panel the reading decreased so we have to relate it with current

Lol no I'm not talking about the solar cell question. I'm talking about the one in which he connects the volt meter

 

[Khadija_1234]

yes it is incorrect..it is not a suitable reason.......

Your talking about the question in which he connects the volt meter, right? :S