CSEC Physics · May/June 2008 · 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)6 marksUse the readings from Table 1 to plot a graph of V₂ vs V₁ on the graph page opposite.
2. 1(b)4 marksFind the slope, S, of your graph.
3. 1(c)1 markWhat does the slope of your graph represent?
4. 1(d)1 markUse your graph to determine the value of V₂ when V₁ = 50 V.
5. 1(e)3 marksCalculate the current I₂ in the secondary windings when V₁ = 50 V.
6. 1(f)2 marksUse the slope of your graph and the equation I₁ = SI₂ to determine the current I₁ in the primary winding.
7. 1(g)(i)3 marksCalculate the power delivered to the resistor, R, by the secondary windings.
8. 1(g)(ii)1 markCalculate, also, the power input to the primary windings by the source.
9. 1(h)(i)2 marksState TWO major sources of energy loss in transformers.
10. 1(h)(ii)2 marksDescribe the constructional features of commercial transformers which minimize the losses stated in Part (h) (i).
11. 2(a)7 marksComplete Table 2 by writing in the missing information.
12. 2(b)(i)2 marksCalculate the area ABCD.
13. 2(b)(ii)3 marksDetermine the volume of water in the pool, given that it is 20 metres wide.
14. 2(b)(iii)3 marksCalculate the mass of water in the pool. [density of water = 1000 kg m⁻³]
15. 3(a)3 marksThe THREE MAIN particles in an atom are: A. B. C.
16. 3(b)3 marksThe corresponding location of EACH of these particles is: A. B. C.
17. 3(c)1 markThe particle with NO charge is called
18. 3(d)2 marksHow many half-lives would it take for a sample of Carbon-14 to be reduced to 1/32 of its original mass?
19. 3(e)2 marksGiven that Carbon-14 has a half-life of 5700 years, determine how long it would take for this reduction to occur.
20. 3(f)4 marksCarbon dating involves the use of Carbon-14 to determine the age of ancient objects. Explain how this is accomplished.
21. 4(a)(i)6 marksDefine the 'moment of a force'.
22. 4(a)(ii)6 marksDraw a diagram to illustrate the action of a force multiplier lever.
23. 4(a)(iii)6 marksExplain the operation of a force multiplier lever.
24. 4(b)(i)9 marksIdentify the nature and point of action of the third force acting on the wheelbarrow. Write down an equation showing the relationship between the THREE forces.
25. 4(b)(ii)a)9 marksCalculate the weight, W (see Figure 3). [acceleration due to gravity, g = 10 ms⁻²]
26. 4(b)(ii)b)9 marksCalculate the value of the applied force, F (see Figure 3). [acceleration due to gravity, g = 10 ms⁻²]
27. 5(a)6 marksDescribe an experiment to verify Snell's law. State the apparatus used, your method, and the results you would take to arrive at your conclusion.
28. 5(b)(i)9 marksCalculate the angle of refraction at the boundary, PR.
29. 5(b)(ii)9 marksGiven that the critical angle for the glass-air boundary, PQ, is 41.8°, deduce whether or not there would be total internal reflection at this boundary.
30. 6(a)6 marksThe method of mixtures is used to determine the specific heat capacity of liquids and solids by experiment. Describe the procedure, the measurements to be taken and the use of these measurements to obtain the result in…
31. 6(b)6 marksFind the amount of heat removed each day by the quantity of urine. [Assume the specific heat capacity of urine = specific heat capacity of water = 4200 J kg⁻¹ K⁻¹, density of urine = density of water = 1000 kg m⁻³]
32. 6(c)3 marksWhat mass of perspiration would remove the same quantity of heat as the urine in Part (b), when completely evaporated from the skin? Assume that evaporation is equivalent to a change of phase from liquid to vapour…