CAPE Physics Unit 1 · 2014 · Paper 2

37 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)2 marksCalculate the initial horizontal component of the missile's velocity.
2. 1(a)(ii)2 marksBy neglecting air resistance, determine the horizontal range of the missile.
3. 1(b)(i)1 markIn which picture does the ball have maximum potential energy?
4. 1(b)(ii)1 markIn which picture does the ball have maximum kinetic energy?
5. 1(b)(iii)2 marksHow much potential energy has the ball lost from Picture 1 to Picture 6, if the ball weighs 2 N?
6. 1(c)4 marksOn the grid provided on page 7, plot a graph of H_rebound versus H_before (starting at the origin).
7. 1(d)(i)2 marksUse the graph in (c) above to deduce the equation relating H_rebound and H_before.
8. 1(d)(ii)1 markHow high would the ball be expected to rebound if it were dropped from a height of 2.04 m?
9. 2(a)(i)1 markWhat is the approximate range of frequencies which can be heard by a young adult with normal hearing?
10. 2(a)(ii)3 marksA fifteen-year-old girl frequently listens to her iPod via a single earphone placed in her right ear. Describe an experiment which you could do in the physics laboratory to test whether the frequency response of her…
11. 2(b)4 marksShow that T, the period of the waves, in terms of g and λ is given by T = sqrt(2πλ / g).
12. 2(c)2 marksCalculate the value of T when the wavelength is 0.8 m.
13. 2(d)(i)2 marksComplete the diagram below to show the different regions of the electromagnetic spectrum.
14. 2(d)(ii)3 marksWrite down approximate values for the following: λ_1, λ_2, λ_3, λ_4.
15. 3(a)2 marksComplete Table 2 by inserting the missing values.
16. 3(b)(i)4 marksUsing the data from the table, plot on the grid provided on page 11, a graph of volume against temperature. Use a scale which shows -325 °C to +100 °C on the temperature axis and begin at 0 mm³ on the volume axis.
17. 3(b)(ii)2 marksFrom your graph, determine the temperature at which the volume is zero.
18. 3(c)2 marksIf the gas is cooled enough, would its volume actually become zero? Suggest a reason for your answer.
19. 3(d)3 marksDetermine temperature, in kelvin, at which the length of the gas column would be 70 mm.
20. 3(e)(i)1 markWrite the equation of state for an ideal gas.
21. 3(e)(ii)1 markOutline how this equation is applied in the experiment on page 10.
22. 4(a)(i)2 marksExplain why a particle moving with constant speed along a circular path has an acceleration.
23. 4(a)(ii)2 marksThe value of radial acceleration is given by the expression v²/r, where v is the speed and r is the radius of the path. Using base units, show that this expression is dimensionally correct.
24. 4(b)4 marksWhat is the magnitude and direction of the resultant horizontal force acting on the racing car while it is travelling around the curve?
25. 4(c)(i)a)1 markDraw a diagram to show the forces acting on the stone in a vertical circle when it is at its highest point.
26. 4(c)(i)b)1 markDraw a diagram to show the forces acting on the stone in a vertical circle when it is at its lowest point.
27. 4(c)(ii)2 marksIn what position along the vertical circular path is the string MOST likely to break? Suggest a reason for your answer.
28. 4(c)(iii)3 marksAt what angular speed will the spring break?
29. 5(a)1 markIn order for waves to produce an observable interference pattern, they must be coherent. Explain what is meant by the term 'coherent' when used in this context.
30. 5(b)(i)5 marksWith the aid of a diagram, show that the distance, y, between the centre of the interference fringe pattern and the first bright fringe is given by y = λD/a.
31. 5(b)(ii)2 marksWith a pair of slits, spacing 0.20 mm, at a distance of 0.50 m from the screen, the bright fringes are 1.4 mm apart. What is the wavelength, in nm, of the light produced by the laser?
32. 5(c)(i)4 marksFind the number of rulings per mm on the grating.
33. 5(c)(ii)3 marksFind the number of spectra obtained on either side of the normal.
34. 6(a)7 marksDiscuss how the principles of conduction, convection, radiation and the greenhouse effect are applied in the design of this type of solar panels.
35. 6(b)(i)3 marksSketch a graph to show how the temperature would vary across the wall.
36. 6(b)(ii)2 marksCalculate the thickness of brick which would have the same insulating effect as 5 cm of foam.
37. 6(b)(iii)3 marksDetermine the rate at which heat energy would pass through each square metre of this composite wall.