CSEC Physics · May/June 2010 · Paper 2

37 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 Table 1 by calculating the values for sin î and sin f.
2. 1(b)7 marksUse the readings from the completed Table 1 to plot a graph of sin î against sin î on the graph paper on page 2.
3. 1(c)4 marksCalculate the gradient of the graph.
4. 1(d)4 marksState the TWO laws of refraction.
5. 1(e)3 marksCalculate the angle of refraction if the angle of incidence is 90° for this new material.
6. 1(f)3 marksThe anti-reflective coating works best if its refractive index is the square root of the refractive index of the lens in the eye glasses. Determine the refractive index of the lens that gives the best result.
7. 2(a)(i)2 marksDefine Velocity.
8. 2(a)(ii)2 marksDefine Acceleration.
9. 2(a)(iii)2 marksDefine Linear momentum.
10. 2(b)(i)2 marksCalculate his average speed for the first 6.5 s.
11. 2(b)(ii)2 marksWhat was his maximum speed?
12. 2(b)(iii)2 marksWhat was his acceleration during the first 6.5 s?
13. 2(b)(iv)a)1 markWhat MAJOR form of energy did BOLT possess when he crossed the finish line?
14. 2(b)b)2 marksCalculate the value of this energy if his mass was 86 kg.
15. 3(a)(i)1 markSketch the Vout – t graph when switch S is open.
16. 3(a)(ii)1 markSketch the Vout – t graph across diode D when switch S is closed.
17. 3(a)(iii)1 markSketch the V – t graph across a battery power source.
18. 3(a)(iv)1 markWhat is the similarity in the voltage between (ii) and (iii)?
19. 3(a)(v)2 marksHow can you use the circuit in Figure 1 to determine whether or not a semiconductor diode is defective?
20. 3(b)(i)1 markState the type of logic gate.
21. 3(b)(ii)8 marksComplete the truth table for the following logic circuit.
22. 4(a)(i)5 marksExplain how this motor works.
23. 4(a)(ii)1 markGive the purpose of the commutator.
24. 4(b)(i)4 marksCalculate the power provided by the motor.
25. 4(b)(ii)4 marksCalculate the current drawn from the d.c. supply.
26. 4(b)(iii)1 markIf the power required to lift the appliance was greater, what effect would this have on the value of the current? Assume the voltage rating remains constant. [g = 10 N Kg-1]
27. 5(a)6 marksDescribe the method used by this group to determine the specific heat capacity of the metal block.
28. 5(b)(i)6 marksAssuming that no heat was lost and ignoring the heat capacity of the container, determine the value of the specific heat capacity of the liquid.
29. 5(b)(ii)1 markIf the liquid was heated twice as long, what impact, if any, would this have on the specific heat capacity of the liquid?
30. 5(b)(iii)2 marksJustify your response in part (ii).
31. 6(a)(i)6 marksCompare these two types of radiation in terms of their range in air.
32. 6(a)(ii)6 marksCompare these two types of radiation in terms of their behaviour in an electric field.
33. 6(a)(iii)6 marksCompare these two types of radiation in terms of their type of track in a cloud chamber.
34. 6(b)(i)2 marksCalculate the number of neutrons in Xenon (Xe).
35. 6(b)(ii)4 marksDetermine the energy released in the proposed nuclear reaction.
36. 6(b)(iii)2 marksIf the energy released in an alternative, natural decay reaction is 9.98 x 10-13J, which would be the preferred method for the production of a nuclear power station? Justify your choice.
37. 6(b)(iv)1 markGive the reason for your decision in (iii). [c = 3.0 x 108 ms¯¹]