CSEC Physics · May/June 2011 · Paper 2

33 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)7 marksPlot on page 3, a graph of velocity (V) versus time (t).
2. 1(b)4 marksFrom the graph, calculate the slope, p.
3. 1(c)1 markWhat quantity does the slope, p, represent?
4. 1(d)(i)4 marksContinue the velocity-time graph on page 3, to show this information and use the graph to determine the total distance travelled.
5. 1(d)(ii)2 marksCalculate the average velocity of the taxi for the complete journey.
6. 1(d)(iii)3 marksIf the total mass of the loaded taxi was 1 500 kg, determine the momentum of the vehicle when it is travelling at constant velocity.
7. 1(e)(i)2 marksDefine the term 'displacement'.
8. 1(e)(ii)2 marksComplete Table 2 by ticking (√) the appropriate column that represents the quantity, given in the table.
9. 2(a)(i)3 marksComplete Table 3 by inserting the correct symbol and SI Unit which relate to the quantity shown in Column 1.
10. 2(a)(ii)2 marksDefine the term 'heat capacity of a substance'.
11. 2(a)(iii)1 markWrite the equation that relates specific heat capacity with heat capacity.
12. 2(b)(i)6 marksCalculate the energy needed for the ice to totally melt and to reach its present temperature. Assume no heat losses. [Specific Heat Capacity of water = 4 200 J Kg⁻¹K⁻¹, Specific Latent Heat of Fusion of Ice = 340 000 J…
13. 2(b)(ii)3 marksIf this melting and heating activity took place over 300 s, calculate the rate at which the ice / water was receiving heat.
14. 3(a)(i)2 marksHow does the flow of the current within the simple cell differ from that in a copper wire?
15. 3(a)(ii)1 markName the material used for the positive terminal in a dry cell.
16. 3(a)(iii)1 markName the material used for the negative terminal in a dry cell.
17. 3(a)(iv)3 marksIn the circuit in Figure 1, if the current is steady at 0.1 A, calculate the charge that goes through the copper wire in 60 s.
18. 3(a)(v)1 markDetermine how much charge goes through the simple cell in 60 s.
19. 3(b)(i)3 marksIdentify the type of current (d.c. or a.c.) which generated the specific waveforms A, B and C shown in Table 4.
20. 3(b)(ii)4 marksDetermine the period and frequency for Waveform C.
21. 4(a)6 marksDescribe how he can set up the apparatus to be able to observe an interference pattern of light and dark bands on the white screen and briefly explain why this pattern forms.
22. 4(b)(i)3 marksIf the angle of refraction for the violet light, θᵣ, is 20°, what is the refractive index of this prism for violet light?
23. 4(b)(ii)3 marksCalculate the speed of the violet light in the prism.
24. 4(b)(iii)3 marksCalculate the frequency of violet light if the wavelength in air is 430 nm. [1 nm = 10⁻⁹ m, Velocity of light in air = 3.0 × 10⁸ m s⁻¹]
25. 5(a)(i)2 marksState TWO advantages of using a.c. to transmit electrical power.
26. 5(a)(ii)4 marksDraw a diagram of a simple transformer indicating the features which enhance efficiency.
27. 5(b)(i)3 marksIf the number of turns in the secondary coil is 900, calculate the number of turns in the primary coil for an ideal transformer.
28. 5(b)(ii)3 marksCalculate the transmission current for the ideal transformer referred to at (b) (i).
29. 5(b)(iii)3 marksCalculate the transmission power if the transformer is 70% efficient.
30. 6(a)(i)3 marksOutline THREE uses of radioisotopes in medicine.
31. 6(a)(ii)3 marksState THREE safety precautions to be taken when using radioactive substances.
32. 6(b)(i)4 marksCalculate the probable age of the plant.
33. 6(b)(ii)5 marksThe mass of the sun is lost at the rate of 2.0 × 10⁹ kg s⁻¹. If the speed of light in a vacuum is 3.0 × 10⁸ m s⁻¹, calculate the power output of the sun in kilowatts.