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CSEC Physics · May/June 2022 · 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.

Practise this paper
  1. 1(a)8 marksUsing the grid in Figure 1, plot a graph of activity, A, against time, t, and draw a smooth curve.
  2. 1(b)(i)2 marksDefine the term 'half-life'.
  3. 1(b)(ii)5 marksFrom your graph, calculate the average half-life of the radioactive substance.
  4. 1(b)(iii)2 marksOn your graph, use dotted lines to determine how long it would take for the activity of the sample to be reduced to ten disintegrations per minute from its original activity level. State the time taken.
  5. 1(c)(i)1 markDefine the term 'nuclear fission'.
  6. 1(c)(ii)7 marksUsing the atomic mass data in Table 2, calculate the energy released in the reaction in joules. [where u = 1.66 * 10^-27 kg, c = 3.0 * 10^8 m s^-1]
  7. 2(a)4 marksComplete Table 3 by inserting the missing physical quantities and their derived SI units.
  8. 2(b)3 marksState Newton's second law of motion.
  9. 2(c)(i)3 marksA basketball has a mass of 500 g. Calculate its weight in newtons. [Acceleration due to gravity, g = 10 m s^-2]
  10. 2(c)(ii)3 marksComplete the scale drawing on Figure 2 to determine the resultant velocity of the basketball.
  11. 2(c)(iii)2 marksDetermine the magnitude of the resultant velocity in m s^-1 and its direction in degrees from the wind's velocity, OB.
  12. 3(a)5 marksComplete Table 4 by inserting the types of thermometers, their use and range.
  13. 3(b)(i)1 markState the value of the ice point on the Celsius scale.
  14. 3(b)(ii)1 markState the value of the ice point on the Kelvin scale.
  15. 3(c)(i)1 markState the law associated with the graph in Figure 3.
  16. 3(c)(ii)3 marksUse the graph in Figure 3 to determine the volume when the pressure is 250 kPa.
  17. 3(c)(iii)4 marksUse your answer in (c)(ii) to calculate the new volume when the pressure is increased from 250 kPa to 975 kPa.
  18. 4(a)(i)3 marksDefine the term 'pressure'. State its SI unit.
  19. 4(a)(ii)4 marksCalculate the liquid pressure that a diver experiences at a depth of 0.5 km below the surface of the sea, given that acceleration due to gravity, g = 10 N kg^-1 and the density of sea water, rho = 1025 kg m^-3.
  20. 4(b)(i)3 marksState Archimedes' principle.
  21. 4(b)(ii)5 marksA boat which has a weight of 83 000 N floats in sea water. If the density of the sea water is 1025 kg m^-3, calculate the volume of the sea water displaced by the boat.
  22. 5(a)2 marksDefine the term 'longitudinal wave'.
  23. 5(b)(i)1 markWrite TWO letters whose distance between them on the wave train represents the amplitude.
  24. 5(b)(ii)1 markWrite TWO letters whose distance between them on the wave train represents a wavelength.
  25. 5(c)2 marksState TWO differences between 'light waves' and 'sound waves'.
  26. 5(d)(i)4 marksCalculate the image distance, v.
  27. 5(d)(ii)2 marksDetermine the magnification of the image formed.
  28. 5(d)(iii)3 marksState the nature and position of the image formed.
  29. 6(a)6 marksComplete Table 5 by inserting the missing electrical circuit symbols and their names.
  30. 6(b)(i)3 marksIf the standard charger can deliver a current of 0.8 A, calculate the time taken to charge the battery.
  31. 6(b)(ii)3 marksCalculate the voltage, given that the power supply of the cellphone is 4.4 W.
  32. 6(b)(iii)3 marksDetermine the work done to fully charge the cellphone battery.

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