CSEC Physics · May/June 2005 · Paper 2

32 questions and parts from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

1. 1(a)4 marksComplete the table above.
2. 1(b)10 marksPlot a graph of Sin i against Sin r on the graph paper provided on page 2.
3. 1(c)4 marksFind the slope, n, of the graph.
4. 1(d)1 markWhat does the slope, n, of the graph represent?
5. 1(e)6 marksDraw a labelled diagram identifying the apparatus used and angles measured by the student to obtain the results.
6. 1(f)5 marksA ray of light is incident at an angle of 35°. With the aid of dotted lines use your graph to calculate the angle of refraction produced.
7. 2(a)(i)2 marksState the principle of conservation of energy.
8. 2(a)(ii)1 markDefine the term 'potential energy'.
9. 2(a)(iii)1 markGive ONE example of a body possessing potential energy.
10. 2(a)(iv)1 markDefine the term 'kinetic energy'.
11. 2(a)(v)1 markGive ONE example of a body possessing kinetic energy.
12. 2(b)1 markWhat was the potential energy of the ball just before the kick was taken?
13. 2(c)(i)3 marksCalculate the potential energy of the ball just before it was caught.
14. 2(c)(ii)3 marksCalculate the kinetic energy of the ball just before it was caught.
15. 2(c)(iii)2 marksAfter the ball was caught, what was the kinetic energy converted into?
16. 3(a)3 marksDefine the 'heat capacity of a substance' and state its SI unit.
17. 3(b)3 marksName the THREE modes of heat transfer.
18. 3(c)(i)3 marksCalculate the heat energy supplied by the heating element in 2 hours.
19. 3(c)(ii)3 marksCalculate the heat energy supplied to the water, given that its temperature increases to 58°C. [specific heat capacity of water is 4200 J kg⁻¹ K⁻¹]
20. 3(c)(iii)3 marksCalculate the heat capacity of the tank, assuming that the tank and the water reach the same final temperature of 58°C.
21. 4(a)2 marksExplain what is meant by the term 'magnetic field'.
22. 4(b)(i)4 marksSketch the field pattern for the arrangement where the South pole of one magnet faces the North pole of another.
23. 4(b)(ii)4 marksSketch the field pattern for the arrangement where the South pole of one magnet faces the South pole of another.
24. 4(c)(i)2 marksDescribe what would be observed on the galvanometer when the switch is closed.
25. 4(c)(ii)3 marksExplain your answer.
26. 4(c)(iii)2 marksDescribe what would be observed on the galvanometer if the switch is subsequently opened.
27. 4(c)(iv)1 markDeduce what would be observed on the galvanometer if the battery were replaced by a low frequency a.c. supply.
28. 4(c)(v)1 markHow would these observations be affected if the number of turns on the transformer secondary were significantly increased?
29. 5(a)6 marksIdentify the logic gates described in the first column of the table below and hence complete the table by writing in the names and logic symbols in the appropriate columns.
30. 5(b)6 marksExamine the logic circuit shown in Figure 2 and complete the TRUTH TABLE below:
31. 5(c)(i)2 marksExplain what happens if the DOOR is OPEN and the ENGINE is OFF.
32. 5(c)(ii)1 markExplain what happens if the DOOR is OPEN and the ENGINE is ON.