CAPE Physics Unit 1 · 2002 · Paper 2

53 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 marksUsing the values in the table above, plot a graph on page 5 of force against distance.
2. 1(b)2 marksUse the graph you have plotted on page 5 to estimate the work done on the lead to bring it to the surface.
3. 1(c)4 marksStating any assumptions you made, calculate the speed at which the lead of mass 1 kg exits the glass tube.
4. 2(a)(i)4 marksDescribe an experiment to investigate the effect of damping on the amplitude of a mass-spring system.
5. 2(a)(ii)1 markWhat adjustments can you make to the experiment in order to investigate whether the damping is constant or not?
6. 2(b)(i)3 marksCalculate the value of f₀.
7. 2(b)(ii)1 markWhat is the value of the natural frequency on the graph?
8. 2(b)(iii)1 markWhat effect occurs at this position?
9. 3(a)(i)3 marksDraw a suitable circuit diagram to show how the thermocouple is constructed.
10. 3(a)(ii)1 markWhy is it suitable to take temperature readings of a substance when it is cooling down rather than while it is heating up?
11. 3(a)(iii)2 marksHow can the thermocouple thermometer be made to respond better to changes in temperature?
12. 3(b)(i)1 markFrom the graph find the temperature of the hot junction when the e.m.f. is 14 mV.
13. 3(b)(ii)2 marksUse this formula to calculate the temperature when the e.m.f. is 14 mV.
14. 3(b)(ii)1 markAccount for the different values of temperature in (b)(i) and (b)(ii).
15. 4(a)4 marksState the difference between scalar and vector quantities and give ONE example of EACH.
16. 4(b)(i)6 marksIf the resultant force acts along BO, find the angle θ.
17. 4(b)(ii)6 marksCalculate a value of this resultant force.
18. 4(c)6 marksWhat is the velocity of Tug P and Tug Q?
19. 4(d)4 marksexplain what principle is observed and why energy is NOT conserved.
20. 5(a)(i)8 marksShow that the mass of the Sun in the Earth's orbit is four times the mass of the sun in Planet P's orbit.
21. 5(a)(ii)8 marksShow that the period of the planet, P, is given by T = 2π * sqrt(r^3 / GM_P), where M_P is the mass of the planet and r the radius of the orbit.
22. 5(b)2 marksCalculate the gravitational force of attraction.
23. 5(c)3 marksCalculate the distance between the planet and its sun.
24. 5(d)4 marksCalculate a value for g' the acceleration due to gravity on planet P.
25. 5(e)3 marksWhat will he weigh on planet P?
26. 6(a)2 marksDefine the term 'principal focus of a lens'.
27. 6(b)2 marksDraw a ray diagram to illustrate the formation of the image of an extended object by a convex lens when the object is at a distance from the lens, greater than the focal length of the lens, but less than twice the focal…
28. 6(c)(i)4 marksDraw a ray diagram to show how an image is formed in a diverging lens.
29. 6(c)(ii)4 marksCompare the images formed in (b) and (c)(i).
30. 6(d)(i)6 marksHow far above the transparency must the lens be held in order for the image to be formed on the screen?
31. 6(d)(ii)6 marksWhat is the magnifying power of the lens and how does this affect image formed?
32. 6(e)6 marksExplain how, by plotting a suitable graph, the focal length of the lens could be determined from the data collected. Include a sketch of the graph you would expect to obtain.
33. 7(a)4 marksWhat is the speed of the wave?
34. 7(b)(i)8 marksDescribe, with the aid of a labelled diagram, an experiment to demonstrate interference of sound waves.
35. 7(b)(ii)8 marksWhy are sound waves described as progressive longitudinal waves?
36. 7(c)(i)8 marksUse the equation above to calculate the velocity of a wave along the string.
37. 7(c)(ii)8 marksCalculate this frequency. What can you say about the wavelength of the wave?
38. 7(c)(iii)8 marksCalculate the change in the intensity level when the power output from a piano changes from 100 mW to 200 mW.
39. 8(a)(i)8 marksName the process by which heat is supplied to the gas at C via the copper rod at B.
40. 8(a)(ii)8 marksUse the kinetic theory to explain why the piston at D eventually pushes on the switch at E.
41. 8(a)(iii)8 marksWhy must the copper rod be lagged and the piston light and frictionless?
42. 8(b)(i)9 marksCalculate an estimate for the change of internal energy of the gas at C.
43. 8(b)(ii)9 marksWhy is the actual value for the change of internal energy of the gas at C lower than the value you calculated in (b)(i) above.
44. 8(b)(iii)a)9 marksCalculate the number of moles of helium atoms in the container.
45. 8(b)(iii)b)9 marksCalculate the total kinetic energy of the helium atoms.
46. 8(c)3 marksExplain what happens to the piston at D and why.
47. 9(a)2 marksDefine 'tensile stress' and 'tensile strain'.
48. 9(b)3 marksShow how is k related to the Young's Modulus E of the wire.
49. 9(c)(i)15 marksPlot a graph of load against extension using the values from the table.
50. 9(c)(ii)15 marksUse the graph plotted in (c)(i) to calculate the Young Modulus of Copper.
51. 9(c)(iii)15 marksWhat is the maximum load that can be supported by the wire?
52. 9(c)(iv)15 marksWhat was the stress at the proportional limit?
53. 9(c)(v)15 marksCalculate the elastic energy stored in the wire just before the wire became permanently stretched.