2009 'O' Level Science (Phy / Chem) P1 (MCQ) Answers (5116/01)

Generally, the paper was not difficult except for a few tricky questions (indicated by *).

A score of above 30 should be able to guarantee a 1 grade improvement from your other papers.

Enjoy:

Answers for Sci (Phy/Chem) P1

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

* indicates tricky question.

2009 'O' Levels E-Math Paper 2 Answers (4016/2)

Answers for E-Math Paper 2

1a (i) 22.5 min .............. (ii) 58 1 /3 %
..b (i) 18 18/19 km/h ...... (ii) 8 min 33 s ................. (iii) 10 min
2a (i) (5 - p)(5 + p) ....... (ii) 1/3 (5 - p)
..b .... (-4x - 5) / (x + 2)^2
..c (i) v = 20.7 .............. (ii) +/- sqrt (v^2 + 2gh)
3a ....BD = 10.1 m
..b (i) GN = 10.9 m ....... (ii) angle GAB = 45.4
4a (i) angle BEC = 33 ... (ii) angle EBC = 57 .......... (iii) angle CDE = 123
..b ... angle FAE = angle FDC; angle AFE = angle CFD => FAE similar to FDC
..c ... AC = 13 cm
5a (i) Venn Diagram ..... (ii) { 3, 6, 12, 15} .............. (iii) 8
..b (i) ( .. 25 ... 15 .. ) ... (ii) ( .. 75 ... 165 .. )
........ ( .. 10 ... 30 .. ) .........( ..110 ... 80 ... )
..(iii) The number of adults and children the bus carries in the morning and afternoon, from Monday to Saturday.
..(iv) (a) ( 700 ) ........... (b) The total fare collected for the morning and afternoon
............ ( 650 ) ................ respectively.
..c ... ( 13.5 ) .............. (d) Total amount collected in dollars from Mon to Fri.
6a ... p = 1.07 .............. c. Draw y = 2, x = 2.31, 4.85
..d ... 3.26 ....................e. x = 3.4, y = 2.49
7a ... 2.75 cm .............. b. 2.75 + 2 = 4.75 cm ......... c. 81.3 cm
..d ... 1/2 x 2 x 2.75 x 10 = 27.5 sqcm ...................... e. 2.39 sqcm
8a (i) BC = 399 m ...... (ii) angle ACB = 58.0 ........... (iii) 158.0
..b (i) AD = 79.2 m ..... (ii) Greatest angle of elevation = 8.2
9a ... ST = 10 - x ........ b(i) PQ = 7 + x .................... (ii) QR = 7 - x
..c ... By Pythagoras Theorem, PQ^2 = QR^2 + ST^2
..d ... x = 2.18, 45.8 .... e. Diameter = 4.4 cm
10a (i) Create Table ... (ii) a. 6.27 ............................ b. 1.24
.... b (i) Tree Diagram with Hard and Soft as the Probability (not Ann and Ben)
....... (ii) a. 5 / 18 ......... b. 4 / 9 ................................. c. 5 / 9

2009 'O' Levels E-Math Paper 1 Answers (4016/1)

This year's E-Math paper 1 is actually quite easy, so unfortunately, many students will be able to do well, which then even more unfortunately means that the moderation is going to be quite steep.

Remember, it is not good enough to get 75 marks for A1, after all, an A1 is based on the top 75th percentile. So, to be safe for an A1, you need to score around 85 marks overall for P1 and P2.

Answers for 2009 E-Math P1

1 (a) 5y (4x - 1) .............................. (b) -12
2. $112.80
3 (a) Blue ...................................... (b) 75
4 (a) 70 5/6 % ............................... (b) 5 / 12
5 (a) p = 3 ..................................... (b) x^4 (x to the power of 4)
6 (a) x = 50 ................................... (b) y = 150
7. 1 1/2 < x < 6
8. $1624.27
9 (a) Area = 17.0 ............................ (b) Volume = 340
10 (a) 31, 24 ................................... (b) 45 - 7n
11. Large Tin gives better value.
12 (a) Acceleration = 0.6 ................. (b) Distance = 720
13 (a) t = 2s .................................... (b) Upwards curve with decreasing gradient
14. Surface Area = 113
15 (a) (i) 4 : 5 ........ (ii) 16 : 25 .......... (b) 12.8 kg
16 (a) (i) 8 cm ....... (ii) 40 ............... (b) (i) 64 ......... (ii) 26
17 (a) (i) k = -1 ...... (ii) x = - 2 1/2 ...... (b) (3p - 5a)(2p - q)
18 (a) 2 x 3 x 5^2 ............................ (b) 6 ................................. (c) 8 packs
19 (a) (i) 0.089486355 ... (ii) 0.1 ...... (b) 162
20 (a) 54 ........................................ (b) 22 ............................... (c) 80
21 (a) 4.88 x 10^8 ........................... (b) 31 ............................... (c) 1 : 295
22 (a) 39.8 ...................................... (b) 0.524, 2.62
23 (a) x + 2y = 100 ; x + 3y = 131 ...... (b) x = 38, y = 31
24 (a) Proving: (SAS) ...................... (b) ABC, DCB or ABD, DCA
.... (c) AXD, BXC
25 (a) 1/3 ........................................ (b) y = 1/3 x + 1
.....(c) Area = 9 sq. units .................. (d) (6, 0) and (-6, -4)
26 (a) (i) 2a - 2b ..... (ii) 2a + 4b ..... (iii) a - 4b ........................ (b) 12b
.....(c) O, B, P are collinear; OP = 2OB ....................................... (d) a + 2b

It's been 2Years....

How time flies.... It's been 2 years since i published a blog here.... *WOW*


The direction of the intention of this blog has definitely changed. So, I'm going to use this blog to focus on my passion: Teaching and helping students.

The next few blogs will be answers to the 2009 O Levels Exam for A / E Math, Combine Phy/Chem and Pure Physics.

However, I might have made some careles mistakes despite my countless checking, so do let me know if there are mistakes or discrepancies in the answers.

Also, do not hesitate to post any queries or clarifications to the answers.

Enjoy. =)