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# Edexcel IGCSE Physics Exam 20th May 2015 watch

1. (Original post by fatimah9)
can anyone help me how to calculate the orbit of the moon.
Orbital Speed = 2x pie x orbital radius / time
2. (Original post by Neymar27)
Orbital Speed = 2x pie x orbital radius / time
cheers Neymar for help
3. (Original post by Neymar27)
IGCSE Edexcel,,, im doing Of Mice and men and an inspector calls
Im doing mice and men aswell
Care to join ?

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4. omg this physics revision is given me such a headache, mainly the calculation part.
5. (Original post by fatimah9)
omg this physics revision is given me such a headache, mainly the calculation part.

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6. hey guys, when you work out the (GPE) if the mass is 10.1 and height is 13m. Will this calculation be right 10.1 * 13 = 131.3j
or 10.0 * 10 * 13 = 1300j,

7. (Original post by fatimah9)
hey guys, when you work out the (GPE) if the mass is 10.1 and height is 13m. Will this calculation be right 10.1 * 13 = 131.3j
or 10.0 * 10 * 13 = 1300j,

GPE = Mass (kg) x gravitational field strendth (which is always 10 unless they say otherwise x height

So it would be 10.1 (kg?) x 13 x 10 = 1313 J

You said 10.1 for the mass but wrote 10.0 for the calculation so it would be 1313 or 1300 depending on what it is
8. (Original post by Strangerdanger)
Im doing mice and men aswell
Care to join ?

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Would love to!
9. can we keep the posts in this thread physics related only please. there are other threads for English
10. (Original post by Sara_PLL)
can we keep the posts in this thread physics related only please. there are other threads for English
Yeah thats why i was asking if they wanted to join the english thread lol so this one's kept physics only

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11. Guys i think the best thing to do now is go over all the formulas because paper1 consists of questions asking us formulas and then to apply them.Do light,energy,waves and electricity chapters properly and all experiment precautions because they are worth 1 2 marks which no one wants to lose here and the grade boundaries have always been low like 111 for an A so just go over all the experiments and their precautions and yeah dont be tensed it will be an easy paper like chem though bio gave us a tough time but tats gone now Best of luch their still 2 days left and you can do the course And do go over these notes
http://www.shawonnotes.com/index/igcse_physics/0-6
12. Hey Guys
You can use the revision guide on this link to help u!!
https://nzkhanew.wikispaces.com/file...on%2Bguide.pdf
Good luck to you all
13. i think the science papers this time are going to be easy (biology was easy/not chemistry)
14. (Original post by Strangerdanger)
Yeah thats why i was asking if they wanted to join the english thread lol so this one's kept physics only

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oh ok!
15. what are the two conditions for Total internal reflection ?????
p.s i hate light chapter xD
16. (Original post by arminzan)
what are the two conditions for Total internal reflection ?????
p.s i hate light chapter xD
Total internal reflection occurs when:

- a ray of light is incident upon a boundary with an optically rarer medium (one that makes it speed up) and

- the angle of incidence is greater than the critical angle.
17. Where can I find the edexcel igcse physics revision guide answers asap!!?
18. (Original post by Rosie992)
Where can I find the edexcel igcse physics revision guide answers asap!!?
If you scroll down on this page you will find the physics revision guide answers it also has the chemistry and biology ones too:

They are also on the CD in the back of the revision guide I think.
19. Thanks for ur efforts, but the link shows up as an invalid one..is it working? Can u pls check asap? Would really appreciate.....
20. (Original post by Rosie992)
Thanks for ur efforts, but the link shows up as an invalid one..is it working? Can u pls check asap? Would really appreciate.....
I've checked the links and they all work, but you do have to create an account with xtremepapers to access the links

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