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# Edexcel IAL Physics Unit 02- 08 May 2017 watch

1. Anyone sitting this exam?
Droneon
Tag anyone u know who's taking this exam
2. (Original post by Reshyna)
Anyone sitting this exam?
Droneon
Tag anyone u know who's taking this exam
Hi, how do you think the exam would be in terms of difficulty
3. jan paper was easy.. so it will probably be a moderate paper i think
4. (Original post by zooshan)
jan paper was easy.. so it will probably be a moderate paper i think
Jan was easy? I thought Jan was moderate lol

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5. ohh.. okay.. its just that many people got full marks
6. (Original post by zooshan)
ohh.. okay.. its just that many people got full marks
Ohh really, I guess that means I need more practice. :/

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7. (Original post by Droneon)
Ohh really, I guess that means I need more practice. :/

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i suppose thats true for most of us..
8. (Original post by Ddde)
Hi, how do you think the exam would be in terms of difficulty
Hey
Unfortunately I decided to take exams in october, coz i needed more time for exam preparation
9. Just 2 more days to go!
10. (Original post by Reshyna)
Hey
Unfortunately I decided to take exams in october, coz i needed more time for exam preparation
I wish you all the best🙏
notes for physics unit 2..
hope it is of any use
12. (Original post by zooshan)
notes for physics unit 2..
hope it is of any use
they are actually good notes
13. How do we know when to use superposition or interference in answers relating to waves ? And what's the difference between superposition and interference ?
14. (Original post by tanisharochwani)
How do we know when to use superposition or interference in answers relating to waves ? And what's the difference between superposition and interference ?
Superposition is when 2 waves of the same type meet at a point to give their resultant displacement. When 2 waves in phase meet, constructive superposition occurs giving a maximum amplitude. When 2 waves in antiphase meet, destructive superposition occurs giving zero amplitude.

Interference is just a pattern which occurs when coherent waves superpose.
At maximum amplitude=constructive interference
At zero amplitude=destructive interference
15. (Original post by Ddde)
Superposition is when 2 waves of the same type meet at a point to give their resultant displacement. When 2 waves in phase meet, constructive superposition occurs giving a maximum amplitude. When 2 waves in antiphase meet, destructive superposition occurs giving zero amplitude.

Interference is just a pattern which occurs when coherent waves superpose.
At maximum amplitude=constructive interference
At zero amplitude=destructive interference
Thank you
16. One more day to go!
17. (Original post by Reshyna)
One more day to go!
yeahh havent done any revision (literally nothing for unit 2 physics exam )

spent it on S1 revisison

any tips or advice how to revise
procrastinating
18. (Original post by Shadowfire123)
yeahh havent done any revision (literally nothing for unit 2 physics exam )

spent it on S1 revisison

any tips or advice how to revise
procrastinating
Try the latest past paper
Try the questions which you found difficult
Revise important topics
19. (Original post by Reshyna)
Try the latest past paper
Try the questions which you found difficult
Revise important topics
thank you haha
when one SL helps another SL
20. (Original post by tanisharochwani)
How do we know when to use superposition or interference in answers relating to waves ? And what's the difference between superposition and interference ?
interference is a form of interference

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