CSEC Physics · January 2008 · Paper 2

30 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 force, F, and the extension, e, of the spring. [acceleration due to gravity, g = 10 N kg⁻¹]
2. 1(b)10 marksPlot a graph of Extension against Force on the graph paper on page 2.
3. 1(c)4 marksFrom your graph, calculate the slope, S.
4. 1(d)2 marksThe spring constant is related to the slope of the graph as follows: Spring constant = 1/S. Calculate the spring constant.
5. 1(e)5 marksDraw a labelled diagram showing the apparatus as used in this investigation.
6. 1(f)(i)2 marksWith the aid of dotted lines, use your graph to determine the force which would cause an extension of 1.8 cm.
7. 1(f)(ii)2 marksWith the aid of dotted lines, use your graph to estimate the extension of the spring if a force of 1.3 N is applied.
8. 1(g)1 markIf the student continues to take readings, a point may be reached where proportionality no longer exists. Name this point.
9. 2(a)(i)2 marksState Boyle's Law.
10. 2(a)(ii)4 marksUsing the axes below, sketch the linear graph you would expect to obtain from a Boyle's Law experiment.
11. 2(b)(i)4 marksApply the kinetic theory of matter to explain the increased pressure in that tyre.
12. 2(b)(ii)5 marksDetermine the new temperature of the air in the tyre, assuming no change in the volume. (Atmospheric pressure = 100 KPa).
13. 3(a)6 marksIdentify the labelled parts of Figure 1.
14. 3(b)(i)1 markDetermine the value of angle b (b̂) when a = 60°.
15. 3(b)(ii)1 markState a reason for your answer in (b)(i).
16. 3(b)(iii)4 marksCalculate the value of angle d, (d̂).
17. 3(b)(iv)3 marksDetermine the value which angle d (d̂) must exceed if E is to be totally internally reflected.
18. 4(a)(i)4 marksWrite the name of the components labelled A, B, C and x.
19. 4(a)(ii)2 marksExplain why a voltage is obtained across the terminals x and y.
20. 4(b)(i)3 marksCalculate the peak value of the output current.
21. 4(b)(ii)3 marksThe component labelled A in Figure 2 makes 10 revolutions in one second. On the grid provided, sketch a graph to represent the variation of output current with time during the first two revolutions. Indicate the SCALE…
22. 4(b)(iii)a)2 marksThe speed of rotation of component A is tripled with no other change involved. Determine the effect on the period of the output current.
23. 4(b)(iii)b)1 markThe speed of rotation of component A is tripled with no other change involved. Determine the effect on the peak value of the output current.
24. 5(a)(i)1 markDraw circuit diagrams showing two resistors connected in series.
25. 5(a)(ii)1 markDraw circuit diagrams showing two resistors connected in parallel.
26. 5(b)(i)1 markState ONE characteristic of resistors connected in series.
27. 5(b)(ii)1 markState ONE characteristic of resistors connected in parallel.
28. 5(c)(i)2 marksIdentify the devices labelled by the A's and B's.
29. 5(c)(ii)5 marksComplete Table 2 showing any necessary working.
30. 5(d)4 marksThe resistance meter is removed and a battery is connected across P and Q. What should be the voltage of the battery in order to deliver the rated power to both A1 and A2? SHOW ALL YOUR WORKING.