HI FREINDS HOW WAS THE PHYSICS ATP GCSE O LAVEL?

rammy97

rammy97

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muhammadali233 said:
it was most easiest
i think this much easy paper can raise the grade threshold and bring some difficulty in getting an A* what do you think?
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I agree this is the problem with easy pprs the percentile becomes high nd those who make silly mistakes suffer. Itnay asaan ppr k baad bhi A* na aye tou kitni hi manhos baat hogi...
 
haris jutt

haris jutt

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Can anybody tell me the answer of second last part of 1st question?
It was about the number of rubbers needed to sink the rod
 
haris jutt

haris jutt

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Dark Destination said:
What was the answer to question 1 part b?
That experiment?
Everyone wrote a different answer there. :/
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I wrote 'we will take the value of the rod inside the water by using the cylinder and the subtract it from the total length of rod.
What yoy wrote about the total number of rubber bands needed to sink the rod ?
 
Dark Destination

Dark Destination

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Okay, this is what i wrote.

Insert a meter rule into the water, and align it vertically with the rod. Make sure the zero mark of the rule co-incides with the water level.
Then use a set-square to get the reading of the rod, on the rule, and look perpendicularly onto the rule to get the accurate value for the length L of rod above water.

Is this correct?

Fate0
 
Abdul Hanan

Abdul Hanan

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Dark Destination said:
Okay, this is what i wrote.

Insert a meter rule into the water, and align it vertically with the rod. Make sure the zero mark of the rule co-incides with the water level.
Then use a set-square to get the reading of the rod, on the rule, and look perpendicularly onto the rule to get the accurate value for the length L of rod above water.

Is this correct?

Fate0
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bro if u placed rule in water it would give rise to water level which according to me make the answer incorrect (not sure though).....
 
Dark Destination

Dark Destination

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Abdul Hanan said:
bro if u placed rule in water it would give rise to water level which according to me make the answer incorrect (not sure though).....
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Only a small portion of the rule, the part before zero, would be inserted, as i am co-inciding the zero mark with the water level.
THERE IS NO WAY TO FIND ACCURATE VALUE OF L.
And even if the water level rised a bit, the rod would rise too, won't it? And the value of L would remain same?

What did you write?
 
Abdul Hanan

Abdul Hanan

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i wrote "place a rule vertically beside the container.view the water level from bottom of meniscus.keep line of sight perpendicular to scale of rule.keep eye as close as possible to rule.and measure l from bottom of meniscus to top of rod"
 
Dark Destination

Dark Destination

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Abdul Hanan said:
i wrote "place a rule vertically beside the container.view the water level from bottom of meniscus.keep line of sight perpendicular to scale of rule.keep eye as close as possible to rule.and measure l from bottom of meniscus to top of rule"
Click to expand...

But the rod keeps moving, as the water never remains still.

Everyone wrote different answers :/
 
funky brat

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For question 1, part 2, I wrote that the rod is wrapped in cobalt chloride paper, that part that sinks becomes, pink, it is removed, measured with a ruler and wrote how to avoid parallex error. Is that correct?
Anyone?
 
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