CAPE Physics Unit 1 · 2010 · Paper 2

36 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)4 marksOn the grid on page 5, plot a graph of velocity v, versus time t.
2. 1(a)(ii)3 marksUsing your graph, describe qualitatively the motion of the ball.
3. 1(a)(iii)a)2 marksCalculate the acceleration of the ball down the inclined plane.
4. 1(a)(iii)b)2 marksCalculate the length of the incline.
5. 1(a)(iii)c)2 marksCalculate the MEAN force experienced by the ball during the impact with the block.
6. 1(a)(iv)2 marksState, with a reason, whether the collision between the block and the ball is elastic or not.
7. 2(a)(i)4 marksDraw rays to show the passage of white light through Figure 2, a diffraction grating.
8. 2(a)(ii)1 markDraw rays to show the passage of white light through Figure 3, a triangular glass prism.
9. 2(a)(iii)1 markDraw rays to show the passage of white light through Figure 4, a rectangular glass block.
10. 2(b)(i)7 marksUse the graph to find the missing values of θ₁ and θ₂, and insert them in the table below. State the value of the critical angle of the glass.
11. 2(b)(ii)1 markDescribe what happens when the angle of incidence θ₁ is 55°.
12. 2(b)(iii)3 marksUse the gradient of the graph to determine the refractive index of the glass for this colour light.
13. 3(a)(i)3 marksIn the spaces provided, sketch graphs of load versus extension for a steel wire, glass and a polymeric material.
14. 3(a)(ii)2 marksDefine the terms 'stress' and 'strain'.
15. 3(b)(i)1 markFill in the missing values of extension, ΔL, in the table.
16. 3(b)(ii)4 marksOn the grid on page 11, draw a graph of load versus extension.
17. 3(b)(iii)2 marksWrite an equation relating M and ΔL for small loads to Young's modulus E for the rubber. Write an equation relating Young's modulus and the gradient of your graph for small loads.
18. 3(b)(iv)4 marksUse your graph to determine Young's modulus for the rubber for small loads.
19. 4(a)(i)1 markState the conditions necessary for a body to be in equilibrium under the action of coplanar forces.
20. 4(a)(ii)7 marksFind the tension in the cord and the magnitude of F.
21. 4(b)(i)1 markState the horizontal and vertical components of the initial velocity.
22. 4(b)(ii)1 markCalculate the time taken for the boy to reach the ground.
23. 4(b)(iii)8 marksHow far horizontally from the truck does the boy land?
24. 5(a)(i)1 markExplain what is meant by 'threshold of hearing' and 'threshold of pain'.
25. 5(a)(ii)1 markWhat property of the human ear makes the decibel (dB) scale particularly useful?
26. 5(a)(iii)1 markWrite down an expression that relates the sound intensity I, to the intensity level β, in dB.
27. 5(a)(iv)1 markWhat is the intensity level of a sound with intensity 3.82 mW m⁻²?
28. 5(a)(v)7 marksFigure 6 is drawn for a typical human ear. Suggest how the figure might change as a person ages.
29. 5(b)(i)1 markExplain why there are positions between the speaker and the wall where intensity is a minimum and why these minima do NOT actually have zero intensity.
30. 5(b)(ii)1 markThe points labelled X on Figure 7 are the only three points of minimum intensity detected at a certain frequency setting. What is the frequency?
31. 5(b)(iii)8 marksWhen the signal generator is set at 165 Hz how far from the wall is the last maximum intensity position? [Velocity of sound = 330 m s⁻¹]
32. 6(a)(i)1 markExplain in terms of the kinetic theory how this radiation is able to warm a distant cold body.
33. 6(a)(ii)5 marksExplain this 'greenhouse effect'.
34. 6(b)(i)1 markCalculate the rate of the heat conduction through the stove wall.
35. 6(b)(ii)1 markCalculate the net rate of heat loss by radiation from the stove, assuming it acts as a black body.
36. 6(b)(iii)10 marksCalculate the heat the stove loses by a combination of conduction and convection in the surrounding air. Explain your answer.