how was physics p1?

last SG · 2009-11-10T18:55:40+00:00

okay. Q4. pls lay out working plz. can't be B. Moi ans ish C.Q10 moi ans is B (how can it be C???)Q11 B (comfirmed)Q15 (need help)Q20. Should be C cannot be...

qdtimes2 SG

overall easy

but i was stumped at the question which asks what's refractive index. My textbook says the ratio of speed of light in vacuum or air to the speed of light in the medium, cheated my feelngs. in the end, i chose the ratio of speed of light in air to the...

btw, what's the answer to qn5? a lot of my frens answers differ..i put 8N =/

NuBoDy SG

hihi

paradoxico SG

I think it was easy. But there were a few booby traps. Like the question with a graph of volume against temperature, at first I didn't read the question thoroughly and I thought that it was asking about the maximum/ minimum of volume, not density! And that question with the current through a straight wire XY, I thought it was the curly one that resembles the right-hand grip rule. Oh the paper is trying to catch us off guard with misleading diagrams!

qdtimes2 SG

then what should be the answer to the straigtht wire qn? im not sure about that 1

SBS n SMRT SG

air lah

for me put 8N

manageable paper..but 10 X harder than last year one

SBS n SMRT SG

hihi

u are real crapper

yiha093 SG

sian . qn 20 i put b i full marks already =.=

i put vaccuum cause vaccuum is ' 1 ' and if i were to use air , which is estimated to be '1' BUT NOT '1' , it would be inaccurate.

qdtimes2 SG

lol

air meh a lot of websites say vacuum

yiha093 SG

lol

air meh a lot of websites say vacuum

its vaccuum =)

trust me xD

dadeadman1337 SG

Vacuum is a better answer as light may travel at different speeds in different atmospheres right? Qn 22 what u guys pt?

ItchyArmpit SG

wah u all do p1 le ar?

i tot that is p4 or p2?

p1 i tot tomorrow?

qdtimes2 SG

22. They travel through a vacuum.

TIB657M SG

My answers from 1 to 40

1. B
2. D
3. D
4.B
5. B
6. C
7. C
8. A
9. B
10. C
11. C
12. C
13. C
14. A
15. B
16. D
17. B
18. D
19. A
20. B
21.B
22. D
23. C
24. A
25. D
26. C
27. D
28. A
29. D
30. C
31. A
32. D
33. C
34. B
35. A
36. C
37. B
38. B
39. B
40. D

So, I think I get Q4, Q16 (maybe), Q19 wrong. Those I should have gotton correct answers. Wasted :(:(:(

Anyway, the paper was managable.
Hope I can get less than 10 questions wrong.......

Also, help me double-check the answers. Thanks =)

dadeadman1337 SG

My answers from 1 to 40

1. A
2. D
3. D
4.B
5. B
6. C
7. C
8. A
9. B
10. C
11. C
12. C
13. C
14. A
15. B
16. D
17. B
18. D
19. A
20. B
21.B
22. D
23. C
24. A
25. D
26. C
27. D
28. A
29. D
30. C
31. A
32. D
33. C
34. B
35. A
36. C
37. B
38. B
39. B
40. D

So, I think I get Q4, Q16 (maybe), Q19 wrong. Those I should have gotton correct answers. Wasted :(:(:(

Anyway, the paper was managable.
Hope I can get less than 10 questions wrong.......

Also, help me double-check the answers. Thanks =)

How come Q1 is A?

TIB657M SG

How come Q1 is A?

Sorry my typo, I got B. Because if push the black ruler by 0.2cm to the white ruler, the object X is 1.1cm, which is same as after using another ruler to measure the end correction.

dadeadman1337 SG

Sorry my typo, I got B. Because if push the black ruler by 0.2cm to the white ruler, the object X is 1.1cm, which is same as after using another ruler to measure the end correction.

Its 1.3cm, C isn't it?

yiha093 SG

wah u all do p1 le ar?

i tot that is p4 or p2?

p1 i tot tomorrow?

we pure phy.

tmr sub sci.

TIB657M SG

Its 1.3cm, C isn't it?

Why is 1.3cm? Can elighten me, thanks.

dadeadman1337 SG

Why is 1.3cm? Can elighten me, thanks.

Object X starts from the end of the ruler and not the point of 0.

Your ans for Qn 7 is wrong too, density is mass over vol. Low vol=high density, so i put A

dadeadman1337 SG

My answers:

1-5 CDDBB

6-10 CAABC

11-15 BCAAB

16-20 BBDDB

21-25 DDCCB

26-30 CDBDC

31-35 CDCCB

36-40 CBDDD

I think my answers for qn 4,28, 35 are wrong