CAPE Physics Unit 1 · 2009 · Paper 2

44 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)(i)1 markWrite down an equation which shows the relation between the resultant force F on a body, the time t for which the force acts and the change in momentum, Δp, of the body.
2. 1(a)(ii)1 markDefine the term 'impulse'.
3. 1(b)(i)1 markCalculate the initial weight of the rocket.
4. 1(b)(ii)1 markCalculate the final weight of the rocket.
5. 1(b)(iii)2 marksCalculate the time taken for the fuel to be burned.
6. 1(c)(i)3 marksOn the grid on the page opposite, plot a graph of the upward Force (F)/N versus Time (t)/s. Draw the BEST curve through the points.
7. 1(c)(ii)2 marksOn the SAME graph draw a line to represent the variation with time of the total weight of the rocket while the fuel is burning.
8. 1(c)(iii)1 markFrom the graph, read off the time delay between the firing of the rocket and lift off. Write this value in the space below.
9. 1(c)(iv)1 markOn the graph, shade the area that represents the change in momentum of the rocket during the first 4 seconds after the rocket is fired.
10. 1(c)(v)2 marksEstimate the value for the change in momentum of the rocket.
11. 2(a)(i)1 markExplain what is meant by 'periodic motion'.
12. 2(a)(ii)2 marksExplain what is meant by 'simple harmonic motion'.
13. 2(b)5 marksDescribe the practical procedures that you would follow to obtain such a graph for this harbour.
14. 2(c)(i)1 markFor this harbour, calculate the MINIMUM depth of the water.
15. 2(c)(ii)5 marksCalculate the two values of t, (t₁ and t₂), for which the water is 11.5 m deep. (Give the answer in hours).
16. 2(c)(iii)1 markCalculate the length of time for EACH tide during which the depth of water is MORE than 11.5 metres.
17. 3(a)3 marksCalculate the centigrade temperature of the hot water.
18. 3(b)(i)1 markThe value of Ttr is chosen to be 273.16 K. Why is this particular number used?
19. 3(b)(ii)a)1 markComplete Table 2 by filling in the missing values of PT/Ptr.
20. 3(b)b)1 markGive ONE reason why the values of PT/Ptr are NOT constant.
21. 3(c)4 marksOn the grid provided on page 9, plot a graph of PT/Ptr against Ptr, starting the Ptr scale at 0.
22. 3(d)1 markRead off the intercept on the PT/Ptr axis of your graph.
23. 3(e)2 marksUsing your result in (d), deduce an accurate value of the thermodynamic temperature T.
24. 3(f)1 markCalculate the temperature found in Part (e) on the Celsius scale.
25. 4(a)(i)3 marksDefine 'energy' and distinguish between 'kinetic energy' and 'gravitational potential energy'.
26. 4(a)(ii)4 marksShow that the kinetic energy, EK, of a body of mass, m, moving with speed, v, is given by the expression EK = (1/2)mv².
27. 4(b)(i)2 marksCalculate the gymnast's speed at Q.
28. 4(b)(ii)2 marksCalculate the angular velocity of the gymnast at Q.
29. 4(c)(i)1 markDraw a free body diagram to show the forces acting on the gymnast at Q.
30. 4(c)(ii)3 marksCalculate the tension in the rope as the string passes Q.
31. 5(a)(i)1 markExplain what is meant by 'Accommodation' as it relates to the human eye.
32. 5(a)(ii)1 markExplain what is meant by 'Depth of focus' as it relates to the human eye.
33. 5(b)(i)5 marksName the student's eye defect.
34. 5(b)(ii)5 marksCopy Figure 3 onto your answer booklet. On the copied diagram, draw a ray diagram to illustrate the paths of two light rays from a point object at the normal near point, showing how they would reach the retina of the…
35. 5(b)(iii)5 marksDraw a second ray diagram to show how a lens may be used to correct the defect for an object set at 25 cm from the eye.
36. 5(c)(i)4 marksCalculate the position of her near point at age 45.
37. 5(c)(ii)2 marksCalculate the position of her near point at age 55.
38. 5(c)(iii)2 marksCalculate the power of the lens of the reading glasses now required so that she can again read at 25 cm.
39. 6(a)(i)6 marksWrite down an equation for the First Law of Thermodynamics clearly explaining the meaning of the symbols used.
40. 6(a)(ii)6 marksExplain why the heat capacity of a gas at constant pressure, Cp, is greater than the heat capacity of the gas at constant volume, Cv. Write down an expression that relates the two quantities with the Universal Gas…
41. 6(b)(i)3 marksUsing data from the graph, calculate the number of moles of gas.
42. 6(b)(ii)a)2 marksUsing data from the graph, calculate the quantity of heat required to take the gas from C to A along CA.
43. 6(b)(ii)b)2 marksUsing data from the graph, calculate the quantity of heat required to take the gas from C to B along CB.
44. 6(b)(iii)2 marksUsing data from the graph, calculate the work done by the gas along the path from C to B.