You are Here: Home >< Physics

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

Announcements Posted on
Would YOU be put off a uni with a high crime rate? First 50 to have their say get a £5 Amazon voucher! 27-10-2016
1. (Original post by bmgaic)
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!
2. (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
3. did anyone get 0.05 Kwh for one of the calculation questions?
4. And yes, i too got 307.2 for 2nd 6 marker
5. i put 310 just to round it up to a more rounded figure, should this be fine?
6. (Original post by Sum Ting)
did anyone get 0.05 Kwh for one of the calculation questions?
I got this also (because 1kWh = 1000 W therefore you had to divide the power by 1000 and convert the time into hours)
7. (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??
8. (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
9. (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!
10. (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?
11. 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
12. (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!
13. (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
14. (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
15. 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
16. (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
17. 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?
18. (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
19. (Original post by NiamhM1801)
Done - they're in the format I make notes in so sorry if it's a little confusing
Thanks very much x
20. (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

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: September 19, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

Poll
Useful resources