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Edexcel P3 Physics Exam Unofficial Mark Scheme 24th June 2016

Hey guys! How was the exam? Discuss your answers here :smile:

I found that the written questions were better than the calculations, but it was a mixed bag to be honest. How about you?

What did you put for the charge of a alpha nucleus?

(edited 7 years ago)

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Reply 1

Ninestars

I got D for the charge - +3.2 x 10^-19?

Reply 2

Laila1999

Original post by Ninestars

I got D for the charge - +3.2 x 10^-19?

I put that too :smile:

Reply 3

Real_jenn

I found it a beautiful paper!
Predicted grade boundaries?

Reply 4

Ninestars

What did everyone get for the new volume question? I got like 123m^3, but I'm awful at gas calculations so I'm unsure :s-smilie:

Reply 5

XherdanXhaka

Original post by Ninestars

What did everyone get for the new volume question? I got like 123m^3, but I'm awful at gas calculations so I'm unsure :s-smilie:

Yeah i got 123 too.

Reply 6

dan9909

What did everyone get for the intensity question near the end? Did the power have to be first be converted to watts by dividing by 1000?

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Reply 7

XherdanXhaka

Original post by dan9909

What did everyone get for the intensity question near the end? Did the power have to be first be converted to watts by dividing by 1000?

Posted from TSR Mobile

I can't remember, but i know i divided by 1000 as the answer was in W so had to convert kw into watts.

Reply 8

Ninestars

Original post by dan9909

What did everyone get for the intensity question near the end? Did the power have to be first be converted to watts by dividing by 1000?

Posted from TSR Mobile

I got like 22,200 W/m^2 :confused:

Reply 9

dan9909

Ah I got similar. That's a relief

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Reply 10

XherdanXhaka

Original post by Ninestars

I got like 22,200 W/m^2 :confused:

I got 22,222 too for the voltage one.

Reply 11

Ninestars

There was so much maths i can't remember which answers i put

Reply 12

XherdanXhaka

Original post by XherdanXhaka

I got 22,222 too for the voltage one.

The calculations are not hard, it's just that the numbers are so messed up and when i square rooted one of them, i got like 15,625 or something. It's always square rooting some big numbers.

Reply 13

Liv123456789

Original post by XherdanXhaka

The calculations are not hard, it's just that the numbers are so messed up and when i square rooted one of them, i got like 15,625 or something. It's always square rooting some big numbers.

I think I got that too for the velocity question or something. At first, my calculator kept saying maths error because the numbers were too big to square root at the same time, so I had to square root the answer separately.

Reply 14

Liv123456789

Did anyone get like 2.2222222 x 10^13 or something for an answer?

Reply 15

Heardmanator

Lovely paper to finish my GCSE's on! :-)

Reply 16

vik_k1

Original post by Liv123456789

Did anyone get like 2.2222222 x 10^13 or something for an answer?

I got that!

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Reply 17

vik_k1

What did you get for that volume question? I got 120 something- can't remember exactly.

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Reply 18

TSR778899

what did people put for describing the graph?I put that volume and pressure are inversely proportionate so as the volume increases the pressure decreases. Also i attached my line of best fit to the y axis, is this right?