CAPE Physics Unit 1 · 2015 · Paper 2

34 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)2 marksState, in words, Newton's law of universal gravitation.
2. 1(b)(i)3 marksDetermine the weight of the rock on Mars.
3. 1(b)(ii)2 marksShow that the gravitational potential energy of the rock is -1.77 × 10^7 J.
4. 1(c)(i)4 marksOn the grid provided in Figure 1 (page 5), plot a graph of weight (W) versus 1/R^2 to reflect this variation.
5. 1(c)(ii)4 marksFind the gradient of the graph and hence determine the mass of the satellite. (Mass of Earth, M_E = 5.6 × 10^24 kg)
6. 2(a)(i)2 marksState TWO conditions that must be satisfied for simple harmonic motion to occur.
7. 2(a)(ii)3 marksCalculate the maximum kinetic energy of the cube.
8. 2(a)(iii)2 marksExplain why the cube loses contact with the plate.
9. 2(a)(iv)3 marksCalculate the amplitude of oscillation at the instant the cube loses contact with the plate.
10. 2(b)(i)4 marksOn the grid provided in Figure 4 (page 9), plot a graph of amplitude of oscillation, y, against frequency, f.
11. 2(b)(ii)1 markUse your graph to determine the angular frequency for the block when it is oscillating at maximum amplitude.
12. 3(a)2 marksA resistance thermometer and a thermocouple thermometer are both used at the same time to measure the temperature of a water bath. Explain why the thermometers may record different temperatures even though they are…
13. 3(b)(i)1 markWhat is meant by the term 'absolute zero of temperature'?
14. 3(b)(ii)1 markState how the 'absolute thermodynamic scale of temperature' differs from other temperature scales.
15. 3(c)(i)1 markDetermine, in kelvin, and to an appropriate number of significant figures, the temperature 50.00 °C.
16. 3(c)(ii)1 markDetermine, in kelvin, and to an appropriate number of significant figures, the change in temperature of the water bath.
17. 3(d)5 marksAn empirical centigrade temperature can be determined and defined in terms of any suitable thermometric property. Select ONE type of thermometer with a suitable thermometric property and describe briefly the procedure…
18. 3(e)(i)2 marksCalculate, in terms of R_0, the resistance of the wire at 100 °C and at 80 °C as measured by the mercury thermometer.
19. 3(e)(ii)2 marksIf the resistance of the wire is used as a thermometric property, what is the temperature reading of the resistance thermometer when the reading on the mercury thermometer is 80 °C?
20. 4(a)2 marksWrite expressions for A_x and A_y in terms of A and θ.
21. 4(b)(i)3 marksRepresent his resultant displacement using a suitable vector diagram.
22. 4(b)(ii)3 marksDetermine his northerly displacement from his starting point.
23. 4(b)(iii)4 marksHence, determine his resultant displacement from his starting point.
24. 4(c)3 marksBy comparing the units, find the value of x.
25. 5(a)4 marksLong-sightedness is an eye defect that affects many persons. Explain, using suitable optical sketches, how long-sightedness occurs and how it can be corrected.
26. 5(b)3 marksUse a ray diagram to show how focused images are formed in a magnifying glass.
27. 5(c)(i)4 marksDetermine the position of the image and its distance from the lens.
28. 5(c)(ii)1 markDetermine whether the image is virtual or real.
29. 5(c)(iii)3 marksDetermine the magnification of the image and hence its orientation.
30. 6(a)3 marksDefine the term 'Young's modulus'. Include a suitable formula in your definition.
31. 6(b)4 marksExplain the differences between 'elastic deformation' and 'inelastic deformation' by making reference to Hooke's law and energy changes in materials.
32. 6(c)3 marksCalculate the amount of compression that this bone can withstand before breaking. (State your answer in mm.)
33. 6(d)(i)2 marksUse the Young's modulus of the steel to determine the tension in the cable.
34. 6(d)(ii)3 marksAssuming it is an 8-tonne crane and that the length of the cable is 8 m, determine the extension in the cable when it is operating at maximum load.