CSEC Physics · May/June 2019 · 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)3 marksName the parts labelled X, Y and Z.
2. 1(b)8 marksUsing the grid on page 7, plot a graph of Vs against Vp.
3. 1(c)4 marksDetermine the gradient, S, of the graph.
4. 1(d)(i)4 marksUse the gradient, S, to calculate the number of turns in the secondary coil, Ns, given that the number of turns in the primary coil, Np = 85.
5. 1(d)(ii)3 marksCalculate the current in the secondary coil, Is, if the current in the primary coil Ip = 1.8 A.
6. 1(d)(iii)3 marksCalculate the power output, Pout, of the transformer, given that the voltage in the secondary coil, Vs = 55 V.
7. 2(a)5 marksComplete Table 2 by inserting the appropriate physical quantities and derived SI units.
8. 2(b)(i)4 marksCalculate the density of the concrete block, given that its mass is 20 160 kg.
9. 2(b)(ii)2 marksDefine the term 'pressure'.
10. 2(b)(iii)4 marksGiven that g = 10 N kg⁻¹, calculate the pressure exerted on the floor by the base of the concrete block.
11. 3(a)(i)2 marksDefine the term 'heat capacity'.
12. 3(a)(ii)3 marksDefine the term 'specific latent heat of vaporization'.
13. 3(b)2 marksSketch a graph on Figure 4 to represent the statement above.
14. 3(c)(i)4 marksCalculate the amount of energy needed to heat the water from 30 °C to 100 °C.
15. 3(c)(ii)3 marksCalculate the amount of energy needed to convert the water at 100 °C to steam at 100 °C.
16. 3(c)(iii)1 markCalculate the amount of energy needed to heat the water from 30 °C to steam at 100 °C.
17. 4(a)(i)3 marksState THREE features of an image produced in a plane mirror.
18. 4(a)(ii)3 marksExplain why the word 'POLICE' is painted in this manner at the front of some emergency vehicles.
19. 4(b)(i)2 marksComplete the ray diagram to show the path of the emerging ray after it passes through the lens.
20. 4(b)(ii)1 markOn the diagram, label the focal length, f.
21. 4(c)(i)3 marksCalculate the image distance.
22. 4(c)(ii)3 marksCalculate the magnification of the image formed.
23. 5(a)2 marksUsing the axes on Figure 6, sketch the I-V graph for the semiconductor diode.
24. 5(b)4 marksComplete the truth table shown in Table 3 for a NAND gate.
25. 5(c)(i)2 marksCalculate the equivalent resistance of the resistors shown in Figure 7.
26. 5(c)(ii)4 marksCalculate the equivalent resistance of the resistors in Figure 8.
27. 5(c)(iii)3 marksCalculate the total current flowing through the circuit.
28. 6(a)(i)2 marksUse the information given above to determine the number of protons and neutrons present in an atom of lithium-7.
29. 6(a)(ii)4 marksDraw a clearly labelled diagram of the structure of the lithium-7 atom.
30. 6(b)(i)2 marksDefine the term 'half-life'.
31. 6(b)(ii)3 marksCalculate the half-life of lithium.
32. 6(c)4 marksCalculate the energy given off in a nuclear reaction if the change in mass is 0.2014 u.