Credits to Cikgu Zulaili n Cikgu Ahmad Hussaini

1. Paper 3 Zulaili Yaacob & Mohamad Hussaini

2. SECTION A : Question 1 1(a)(i) Manipulated variable : ____________________ 1(a)(ii) Responding variable : ____________________ 1(a)(iii) Constant variable : ____________________ Figure 11.2 : Temperature,  = 30  C length, l = ………… cm m.v r.v Temperature,  Length, l 1 2 0 l 1

3. SECTION A : Question 1 1(a)(i) Manipulated variable : ____________________ 1(a)(ii) Responding variable : ____________________ 1(a)(iii) Constant variable : ____________________ (depends on the experiment) Which of the following is possibly a constant variable? A) Mass B) Thermometer C) Air A) Water B) Stopwatch C) Time A) Length B) Air column C) Ruler          MISTAKES!!!

4. SECTION A : Question 1 1(b) Based on Figures 11.2, 11.3, 11.4, 11.5, and 11.6, determine l when  is equal to 30  C, 35  C, 40  C, 45  C and 50  C. Tabulate your results for l and V for each value of  in the space below.  /  C l / cm V / cm 3 30 35 40 45 50

5. SECTION A : Question 1 Spot the errors! No unit! Not consistence! t 1 t 2 t mean T T 2 l 17 17.6 17.3 0.87 0.76 20 22.4 22 22.2 1.11 1.23 30 25 24.6 24.8 1.24 1.54 40 28 28.8 28.4 1.42 2.02 50 30.8 31 30.9 1.55 2.4 60

6. SECTION A : Question 1 Spot the errors! Unit at the wrong place! l t 1 t 2 t mean T T 2 20.0 cm 17.0 s 17.6 s 17.3 s 0.87 s 0.76 s 2 30.0 cm 22.4 s 22.0 s 22.2 s 1.11 s 1.23 s 2 40.0 cm 25.0 s 24.6 s 24.8 s 1.24 s 1.54 s 2 50.0 cm 28.0 s 28.8 s 28.4 s 1.42 s 2.02 s 2 60.0 cm 30.8 s 31.0 s 30.9 s 1.55 s 2.40 s 2

7. SECTION A : Question 1 Spot the errors! Wrong unit! Not consistence! l / cm t 1 / s t 2 / s t mean / s T / s T 2 / s 20.0 17.0 17.6 17.3 0.865 0.748 30.0 22.4 22.0 22.2 1.11 1.232 40.0 25.0 24.6 24.8 1.24 1.537 50.0 28.0 28.8 28.4 1.42 2.016 60.0 30.8 31.0 30.9 1.545 2.387

8. SECTION A : Question 1 Spot the errors! No error! GOOD ANSWER! l / cm t 1 / s t 2 / s t mean / s T / s T 2 / s 2 20.0 17.0 17.6 17.3 0.87 0.76 30.0 22.4 22.0 22.2 1.11 1.23 40.0 25.0 24.6 24.8 1.24 1.54 50.0 28.0 28.8 28.4 1.42 2.02 60.0 30.8 31.0 30.9 1.55 2.40

9. SECTION A : Question 1 BAD GRAPH! GOOD GRAPH!

10. SECTION A : Question 1 What is a GOOD graph? 1 ) Starting at origin (0,0) 2) Write quantities and units on x-axis and y-axis 3) Has uniform scale 4) All points are transferred correctly 5) Draw one straight line and intersect any of the axes 6) Distribute other points equally

11. SECTION A : Question 1 Accepted graph

12. SECTION A : Question 1 Rejected graph more than 1 cm

13. SECTION A : Question 1 Rejected graph more than 0.5 cm

14. SECTION A : Question 1 Conclusion A) a is inversely proportional to b B) a is directly proportional to b C) a is linearly increasing with b A) a is inversely proportional to b B) a is directly proportional to b C) a is linearly increasing with b   a b a b

15. SECTION A : Question 1 Conclusion A) a is inversely proportional to b B) a is directly proportional to b C) a is linearly increasing with b A) a is inversely proportional to b B) a is directly proportional to 1/b C) a is linearly increasing with 1/b    a b a 1/b

16. SECTION A : Question 2 2(a)(i) Relationship A) a is inversely proportional to b B) a is directly proportional to b C) a is linearly increasing with b A) a is inversely proportional to b B) a is directly proportional to 1/b C) a is linearly increasing with 1/b   a b a 1/b

17. SECTION A : Question 2 2(a)(i) Relationship A) a is inversely proportional to b B) a is directly proportional to b C) a is linearly increasing with b A) a is inversely proportional to b B) a is directly proportional to b C) a is linearly increasing with b   a b a b

18. SECTION A : Question 2 2(a)(ii) Determine Corresponding Value h / cm P / Nm -2 1.0 2.0 3.0 1.0 2.0 3.0 4.0 P = 4.0 Nm -2  

19. SECTION A : Question 2 2(a)(ii) Determine Corresponding Value 1/m / g -1  /  C 0.1 0.2 0.3 1.0 2.0 3.0 4.0 1/m = 0.3 g -1   m = 3.3 g 

20. SECTION A : Question 2 2(b)(i) Determine Gradient 1/m / g -1  /  C 0.1 0.2 0.3 1.0 2.0 3.0 4.0 Gradient, m = 4.0  C 0.3 g -1   m = 13.33  C g  y x

22. SECTION A : Question 2 2(c) Calculation problem Reminder! 1) Check for the conversion of units 2) Substitute figures at the correct places 3) Write the final answer in decimal number (Do not give the answer in fr action!!! ) 4) Do not forget the UNIT

23. SECTION A : Question 2 2(d) Precaution Reminder! 1) It is NOT SAFETY PRECAUTION!!! Take few readings and find the average to reduce random error Position of eyes is perpendicular to the scale to avoid parallax error

24. Paper 3 Section B

32. Analyse data Temperature / K Pressure / Nm -2 20 30 40 50 60

33. Graph Temperature / K Pressure / Nm -2

41. Analyse data Length / cm Potential difference / V Resitance / Ω 15 20 25 30 35

42. Length Resistance cm Ω

43. Cuba soalan muka surat 5