CSEC Physics · January 2011 · Paper 2

30 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 marksDefine the following terms: Velocity, Acceleration.
2. 1(b)7 marksUse the results from Table 1 to plot a graph of Velocity versus Time on page 3.
3. 1(c)4 marksDetermine the slope of the graph over the first 6.0 s of the race.
4. 1(d)2 marksHow is the slope of the graph related to the acceleration of the sprinter?
5. 1(e)3 marksCalculate the resultant force acting on the sprinter after 6.0 s.
6. 1(f)5 marksUsing the graph drawn on page 3, determine how far from the finish line the sprinter would be after 10.0 s.
7. 2(a)(i)2 marksIdentify ONE type of radiation with wavelength: a) longer than visible light b) shorter than visible light.
8. 2(a)(ii)5 marksComplete Table 2 which relates to the sources and uses of electromagnetic waves.
9. 2(b)3 marksIf gamma rays have a wavelength of 3.0 × 10⁻¹² m, calculate the frequency of this type of radiation. [Velocity of all electromagnetic waves = 3.0 × 10⁸ m s⁻¹]
10. 2(c)(ii)5 marksA ray of red light emerges from a glass block as shown in Figure 1. If the block has a refractive index of 1.5, determine the value of the angle e.
11. 3(a)6 marksComplete Table 3 which relates electrical circuit symbols to the names of electrical components.
12. 3(b)(i)1 markState the formula which relates voltage, V, current, I and resistance, R.
13. 3(b)(ii)3 marksCalculate the value of R₂.
14. 3(b)(iii)2 marksWhat is the reading on voltmeter (V)?
15. 3(b)(iv)3 marksIf switch S is closed, what would be the new reading on ammeter, (A)?
16. 4(a)6 marksDescribe how the apparatus shown in Figure 3 below may be used to show how the temperature of a substance such as naphthalene, varies during cooling. Include in your description any other equipment that may be necessary.
17. 4(b)(i)1 markDetermine the mass of the melted ice.
18. 4(b)(ii)3 marksCalculate the heat lost by the water.
19. 4(b)(iii)2 marksWrite down an expression for the TOTAL heat gained by the ice in melting and the melted ice in warming to 20°C.
20. 4(b)(iv)3 marksHence calculate the specific latent heat of fusion of ice. [Specific Heat Capacity of water = 4.2 Jg⁻¹ K⁻¹]
21. 5(a)6 marksWith the aid of at least one diagram, describe how the magnitude of the electromotive force (e.m.f.) induced in a conductor depends on the rate of change of magnetic flux that the conductor experiences.
22. 5(b)(i)3 marksIn the charging lane cars are required to keep moving. Why should this be so?
23. 5(b)(ii)3 marksAssuming the magnetic field is constant, state with reason, how the speed of the car will affect the charging of the batteries.
24. 5(b)(iii)3 marksIn a certain section of road, 200 KW of power is expended to charge 100 cars. If each car converts 600 Watts of power to charging the battery, calculate the conversion efficiency.
25. 6(a)6 marksFor EACH of these scientists, describe briefly TWO main ideas they put forward concerning the nature of the atom, including the name of EACH of their models.
26. 6(b)(i)5 marksYou are required to determine: which nuclides have the identical mass number
27. 6(b)(ii)1 markYou are required to determine: how many neutrons are in the heaviest nuclide
28. 6(b)(iii)1 markYou are required to determine: which nuclides are isotopes.
29. 6(c)(i)4 marksUse the data to determine: TWO different values of the half-life of the element
30. 6(c)(ii)1 markUse the data to determine: The average half-life of the element