CSEC Physics · January 2017 · Paper 2

43 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)8 marksOn the grid provided on page 5, plot the graph of electrical energy, E, against temperature rise, ΔΤ.
2. 1(b)5 marksUsing your graph, calculate the slope, S, of the graph.
3. 1(c)1 markWhat physical quantity does the slope represent?
4. 1(d)4 marksUse the value of the slope S, calculated in 1 (b) on page 4, to determine the specific heat capacity of the liquid in the units Jg⁻¹k⁻¹. Assume there is negligible heat transferred to or from the container holding the…
5. 1(e)(i)2 marksHow does this procedure help in minimizing error in the experiment?
6. 1(e)(ii)1 markState ONE other useful precaution that the student should have taken.
7. 1(f)4 marksGiven that the power supplied to the immersion heater was kept constant at 40 W, calculate the time taken for 18.0 kJ of energy to be supplied.
8. 2(a)2 marksLabel the parts of the cell indicated in Figure 1.
9. 2(b)3 marksState THREE differences between these cells.
10. 2(c)(i)4 marksCalculate the charge added to the battery in Coulombs.
11. 2(c)(ii)4 marksCalculate the energy, in kJ, added to the battery.
12. 2(c)(iii)2 marksSuggest, with a reason, a value for the voltage of the solar module during battery charging.
13. 3(a)(i)4 marksFill in the blanks in the following passage about the moments of forces. The _______________ of moments states that when a body is in equilibrium the sum of the _______________ about any _______________ is equal to the…
14. 3(a)(ii)2 marksApart from the 'seesaw', identify TWO situations in which a force will result in a turning effect.
15. 3(b)(i)4 marksBy taking moments about the pivot, calculate the distance, x, that Keion must sit from the pivot to balance the plank if Kyle sits 1 m from one end of the plank.
16. 3(b)(ii)4 marksIf balanced, calculate the reaction force at the pivot.
17. 3(b)(iii)1 markWhat is the moment of the reaction force about the pivot?
18. 4(a)(i)2 marksState TWO examples of observations which provide evidence that light can be refracted.
19. 4(a)(ii)3 marksComplete Figure 3 by adding the normal at the point of incidence, the refracted ray, and indicating the angles of incidence and refraction.
20. 4(a)(iii)2 marksAs the light ray travels from air to water, determine if the speed of the light ray will increase or decrease. Give a reason for your response.
21. 4(b)(i)1 markWhat is the name of the effect that is created?
22. 4(b)(ii)2 marksOn Figure 4 above, trace the path of the white light into and out of the prism indicating the red ray and the violet ray.
23. 4(c)(i)2 marksComplete Table 2 by inserting the missing values.
24. 4(c)(ii)3 marksDetermine the angle of refraction if an incident angle of 70° was recorded for this experiment. (Use the refractive index of glass as 1.52.)
25. 5(a)(i)1 markState the name of EACH logic gate represented below.
26. 5(a)(ii)1 markState the name of EACH logic gate represented below.
27. 5(a)(iii)1 markState the name of EACH logic gate represented below.
28. 5(b)(i)1 markComplete the truth tables for the NOT and NOR gates.
29. 5(b)(ii)2 marksComplete the truth tables for the NOT and NOR gates.
30. 5(c)(i)3 marksFind the logic combination that causes the alarm to sound by determining the outputs at A, B and C in Figure 6.
31. 5(c)(ii)3 marksIf a simultaneous disturbance is triggered at the back door and at Window 2, show on Figure 7, the logic output at A, B and C.
32. 5(d)(i)3 marksState THREE ways in which advances in electronics, such as the introduction of logic gates, have made a positive impact on society.
33. 5(d)(ii)1 markState THREE ways in which advances in electronics, such as the introduction of logic gates, have made a positive impact on society.
34. 5(d)(iii)1 markState THREE ways in which advances in electronics, such as the introduction of logic gates, have made a positive impact on society.
35. 6(a)(i)3 marksState the names of the components labelled A, B and C.
36. 6(a)(ii)2 marksUsing your knowledge from Rutherford's experiment, explain why it was critically important for him to use the substance or element for the component labelled A.
37. 6(a)(iii)2 marksState TWO conclusions from Rutherford's experiment about the model of the atom.
38. 6(b)(i)1 markDetermine the number of neutrons found in ONE atom of silicon.
39. 6(b)(ii)1 markUsing the same standard notation, state a possible isotope of ²⁸₁₄Si.
40. 6(c)(i)1 markState the type of decay process that occurred.
41. 6(c)(ii)2 marksDetermine the values of p and q.
42. 6(c)(iii)2 marksIf element Y then undergoes a beta decay and forms an element Z, write the reaction equation.
43. 6(c)(iv)1 markHow does radioactive decay affect a particle's mass?