OCR Twenty First Century Science Physics P1-7 Official Thread 2016

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Reply 160

Ananya._c

Original post by NiamhM1801

You use weight = mass x 10 for GCSE level, it's not until A Level that they want 9.81

Thanks so much!

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Reply 161

niamhdoesmaths

Original post by Ananya._c

Thanks so much!

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No problem! :smile:

Reply 162

TheAnonymousMan

For the chemistry exam what elements did you get in the first page? Did the question ask for the relative atomic mass of elements that have different symbols? I got Be And B but some put F because it was the atomic number. I said it doesn't make sense as why would it ask you to find F if it was already in Newlands table of Octaves.

Reply 163

username2644103

Original post by TheAnonymousMan

I got the same.
Heres a link to the chemistry thread which discussed this and some answers that was quite helpful :smile:

http://www.thestudentroom.co.uk/showthread.php?t=4156697&page=2&highlight=ocr%2021st%20century%20physics&p=65766683#post65766683

Reply 164

realsmilee

Original post by Ben.M

Sorry, but I can't find the 7's. My room is just full of piles of booklets and papers, and I can't find them. But here are P4, P5 and P6

Attachment not found

Hey! This is a really weird question...

But what size paper do you use?

I love mindmaps, i swear by them :u:

Reply 165

akmoo

Any six mark predictions????

Reply 166

deeday24

I have the paper but not the mark scheme unfortunately. But here you go. This is for P456.

A182-02 QP Jun15.pdf563.7KB

Reply 167

Alexandra00

Original post by TheAnonymousMan

Be and B is correct, I got that too.

Reply 168

Ben.M

Original post by realsmilee

Hey! This is a really weird question...

But what size paper do you use?

I love mindmaps, i swear by them :u:

Haha, it's A3 paper :smile:

Reply 169

akmoo

CAN SOMEONE ANSWER THIS QUESTION PLEASE show method as well i A tennis player strikes a serve with a force of 30N. If the ball has a mass of 250g and the racket is in contact with it for 0.15s calculate the ball’s change in momentum and its speed.??spent hours on it and got the change in momentum as 4.5 but how do i get speed?

Reply 170

realsmilee

Original post by Ben.M

Haha, it's A3 paper :smile:

Thought so :h:

If you have any B7, C7, or P7 could you send them to me? :colondollar:

Reply 171

akmoo

Original post by akmoo

nvm i did it

all i had to do was 4.5/0.25 = 18

Reply 172

Aliondo

I need the mark scheme for 2015 urgently. Please help a brother out here

Reply 173

Ananya._c

Original post by akmoo

nvm i did it

all i had to do was 4.5/0.25 = 18

Why do that? :confused:

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Reply 174

niamhdoesmaths

Original post by Aliondo

I need the mark scheme for 2015 urgently. Please help a brother out here

I have it but only as a paper copy. I can take pictures and PM you if you like?

Reply 175

Aliondo

Original post by NiamhM1801

I have it but only as a paper copy. I can take pictures and PM you if you like?

Please do, I will love you forever

Reply 176

Tanikaa_

6 marker predictions anyone???

Reply 177

akmoo

Original post by Ananya._c

Why do that? :confused:

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Because you have to change the 250g to .25kg

Reply 178

crosbycasey56

Original post by NiamhM1801

I have it but only as a paper copy. I can take pictures and PM you if you like?

Is there anyway you can also send me a copy please?
Thank you

Reply 179

akmoo

Anyone know how to this?

This car can apply amaximum braking force of 10,000N. If thecar’s mass is 1000Kg how far is its stopping distance when it is travelling ata speed of 15m/s (roughly 30ph) and 30m/s (roughly 60mph)?