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# IGCSE Physics Paper 2 Unofficial Mark Scheme

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1. Going to kick off the end of exams with an unofficial mark scheme for IGCSE Physics Paper 2 June 17th 2016.

Please send me the question numbers and the answers you got, thanks.
Spoiler:
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1a. A
1b. A
1c . B
1d . D
2. First 4 questions were multiple choice
3. beta travells 50 meters not cm

4. No idea about the Mark Scheme but it's out for ever now, final exam done!
5. What did people get for the focal length calculation question ??
6. (Original post by hsevras)
beta travells 50 meters not cm
hell yes i changed it at the last minute
7. (Original post by Squizzers)
What did people get for the focal length calculation question ??
The what sorry?? are u sure you're not AQA i think this thread is edexcel igcse P2
8. Wrong it travels 50cm in air
9. (Original post by BitOfDale)
Wrong it travels 50cm in air
damn, tbh i thought it travelled 1000cm so i was like...?
10. (Original post by dch187)
damn, tbh i thought it travelled 1000cm so i was like...?
The Edexcel iGCSE Physics textbook claims that beta travels 500cm to 1000cm in air, but actually the most energetic beta radiation travels up to 2 metres, and on average beta travels only tens of cm. Hence 50cm is the correct answer.
11. for question 1 i got
A(alpha particle)
A(alpha particle)
B(50cm)
D(increases by 1 proton)
12. Question 2 was the one about which wave has the highest frequency. I think I put visible light but I'm not sure if thats right. Question 3 was the digital signal one. The first part asked how can you tell that this is a digital signal and the second part asked how to change the signal to carry more information.

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Updated: June 17, 2016
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