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

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I was thinking the same for some of them, including the digital/analogue waves about how noise affects it (it does affect both, but digital can be cleaned up)

That was my thinking exactly!

Reply 121

frankiwright

Original post by Wisdom2

Alright test! Some parts easy, some parts hard and confusing!

For the 2nd six marker question who got a power of 307.2?

me thnk god

Reply 122

Sum Ting

did anyone get 0.05 Kwh for one of the calculation questions?

Reply 123

Sum Ting

And yes, i too got 307.2 for 2nd 6 marker

Reply 124

bateson

i put 310 just to round it up to a more rounded figure, should this be fine?

Reply 125

louisemayorx

Original post by Sum Ting

did anyone get 0.05 Kwh for one of the calculation questions?

I got this also :smile:

(because 1kWh = 1000 W therefore you had to divide the power by 1000 and convert the time into hours)

Reply 126

niamhdoesmaths

Original post by Sum Ting

did anyone get 0.05 Kwh for one of the calculation questions?

I got 180 what did I do wrong??

Reply 127

LokiiR

Original post by NiamhM1801

I got 180 what did I do wrong??

i got 180 too it waant joules so i thought u had to do 600 * 60 * 5 which is 180000 and 180kwh

Reply 128

niamhdoesmaths

Original post by LokiiR

i got 180 too it waant joules so i thought u had to do 600 * 60 * 5 which is 180000 and 180kwh

Yeah they were exactly the answers I got!

Reply 129

Ben.M

Original post by Sum Ting

did anyone get 0.05 Kwh for one of the calculation questions?

I got that but I now don't see how it can be right. If the drill used 0.6kW in 5 minutes (1/12 of an hour) then it can't be 0.05kWh, as that's less used in an hour than 5 minutes, or am I doing something wrong here?

Reply 130

Sum Ting

Kwh is energy transferred which is 0.6 (kw) times hours (h)- its 5 minutes so is 1/12th of an hour- u multiply and get 0.05kwh

Reply 131

kendo9

Original post by Sum Ting

Kwh is energy transferred which is 0.6 (kw) times hours (h)- its 5 minutes so is 1/12th of an hour- u multiply and get 0.05kwh

Yep!

Reply 132

Ben.M

Original post by Sum Ting

Kwh is energy transferred which is 0.6 (kw) times hours (h)- its 5 minutes so is 1/12th of an hour- u multiply and get 0.05kwh

That's what I did and what I put but it didn't seem to make sense

Reply 133

Char4ncubex

Original post by NiamhM1801

I have very brief notes on P1-6 which I can PM you if you like? They're by no means very good but they might help a little? Also do you have a revision guide?

Can you pm me some notes on p4-6 thanks x

Reply 134

Char4ncubex

Original post by Ben.M

Attachment not found

Hey Ben could you post or pm me notes like these but for additional physics so p4-6 please and any you might have for additional chemistry c4-6 if you do

Reply 135

niamhdoesmaths

Original post by Char4ncubex

Can you pm me some notes on p4-6 thanks x

Done - they're in the format I make notes in so sorry if it's a little confusing :smile:

Reply 136

MezmorisedPotato

In the last six marker, I mentioned about loads of primary sources, said issues and advantages ( including renewables) and then came to a conclusion, it that alright?

Reply 137

niamhdoesmaths

Original post by MezmorisedPotato

In the last six marker, I mentioned about loads of primary sources, said issues and advantages ( including renewables) and then came to a conclusion, it that alright?

In all honesty I can't remember what the question was or what I wrote, but it sounds pretty good to me :smile:

Reply 138

Char4ncubex

Original post by NiamhM1801

Done - they're in the format I make notes in so sorry if it's a little confusing :smile:

Thanks very much x

Reply 139

Ben.M

Original post by Char4ncubex

Hey Ben could you post or pm me notes like these but for additional physics so p4-6 please and any you might have for additional chemistry c4-6 if you do

Will do, I think I have them for all sciences, 1-7 if I remember correctly

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

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