CAPE Physics Unit 2 · 2007 (Specimen) · Paper 1

45 multiple-choice items from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

1. Q11 mark · multiple choiceA 3\text{ V} battery causes a current of 0.5\text{ A} to flow along a wire for 4\text{ seconds}. What is the quantity of charge that passes in this time?
2. Q21 mark · multiple choiceEnergy per unit of charge is a measure of
3. Q31 mark · multiple choiceA current of 0.25\text{ A} flows in a uniform wire of length 2\text{ metre} and cross-sectional area 2 \times 10^{-9}\text{ m}^2, when the potential difference across the wire is 4.25\text{ V}. What is the…
4. Q41 mark · multiple choiceThe variable resistor is adjusted to provide a smaller resistance. Which changes BEST describe the changes in the ammeter and voltmeter readings?
5. Q51 mark · multiple choiceIn the diagram below, the cell has an e.m.f of 9.0\text{ V}. The reading on the high resistance voltmeter is 5.0\text{ V}. What is the current I?
6. Q61 mark · multiple choiceA 3\text{ V} battery of negligible internal resistance is connected to six identical resistors as shown. What is the potential difference between X and Y?
7. Q71 mark · multiple choiceIn closed circuit or loop the algebraic sum of the e.m.f. is equal to the algebraic sum of the products of current and resistance. Which of the following statements is correct?
8. Q81 mark · multiple choiceWhat is the ratio of the electric field strength at X, to the field strength at Y?
9. Q91 mark · multiple choiceThe force per unit charge on a positive test charge placed at a point in a field is called
10. Q101 mark · multiple choiceEach capacitor in the diagram above has capacitance C. What is the effective capacitance between A and B?
11. Q111 mark · multiple choiceA hollow solenoid has 100\text{ turns} in a length of 0.5\text{ m}. If a steady current of 2\text{ A} flows in the solenoid as shown in the diagram, what is the magnitude and direction of the flux density in the…
12. Q121 mark · multiple choiceA wire of length 0.5\text{ m} and resistance 5\ \Omega moves vertically with a velocity of 10\text{ m s}^{-1} perpendicular to a uniform magnetic field of flux density 4.0 \times 10^{-5}\text{ T}. What is the…
13. Q131 mark · multiple choiceAn electron beam moving with speed v enters a uniform magnetic field B, acting down the page as shown. The beam of electrons will bend
14. Q141 mark · multiple choiceWhich diagram correctly shows the direction of the forces acting on adjacent current carrying conductors?
15. Q151 mark · multiple choiceThe diagram illustrate a demonstration of Lenz's law of electromagnetic induction. In which diagram is the current in the correct direction?
16. Q161 mark · multiple choiceA sinusoidal alternating current of a peak value 20\text{ A} dissipates power of 50\text{ W} in a resistor R. The value of the resistor is
17. Q171 mark · multiple choiceWhich of the graphs below BEST represent the I - V characteristics of a silicon p-n junction diode.
18. Q181 mark · multiple choiceA direct current of 5\text{ A} dissipates heat in a given resistor at the same rate as a sinusoidal alternating current flowing through the same resistor. What is the root mean square value of the alternating current.
19. Q191 mark · multiple choiceThe ratio of the secondary turns to the primary turns in an ideal transformer is 1 : 30. A 120\text{ V} a.c. supply is connected to the primary coil and a load of 20\ \Omega connected to the secondary coil. What…
20. Q201 mark · multiple choiceWhich of the traces below will be seen on the cathode ray oscilloscopes in Figure 1 and Figure 2 above?
21. Q211 mark · multiple choiceThe potential divider above is formed from a thermistor and a 200\ \Omega resistor. The thermistor has a resistance of 2\text{ k}\Omega at room temperature and 200\ \Omega at 100\ ^\circ\text{C}. What is the…
22. Q221 mark · multiple choiceWhich pair of values gives the open-loop gain of an ideal op. amp. and that of a typical op. amp.
23. Q231 mark · multiple choiceWhich one of the following combinations gives the truth table shown above?
24. Q241 mark · multiple choiceWhich of the following represents the gain of the amplifier?
25. Q251 mark · multiple choiceThe gain of the op-amp in the diagram above is
26. Q261 mark · multiple choiceThe sinusoidal alternating voltage shown in Figure 2 is applied to the input of the op-amp shown in Figure 1. The voltage of the power supply is \pm 6\text{V}. Which one of the following graphs correctly shows the…
27. Q271 mark · multiple choiceWhich of the following statements does NOT apply to the op-amp in the diagram above? The op-amp circuit
28. Q281 mark · multiple choiceWhich of the following gates is equivalent to the combination above?
29. Q291 mark · multiple choiceIf A = 1 and B = 0, what are the values of the outputs X and Y?
30. Q301 mark · multiple choiceWhich of the following statements about a flip-flop is/are correct? I. It contains 2 cross-linked NAND or NOR gates II. It has 2 input and 2 stable output states III. It has 2 input and one stable output state.
31. Q311 mark · multiple choiceWhich of the following phenomena BOTH demonstrate the wave nature of matter?
32. Q321 mark · multiple choiceIn which of the following radiations do the photons have the LEAST energy?
33. Q331 mark · multiple choicePhotoelectrons are emitted from the surface of zinc metal when light of intensity, I, and wavelength, \lambda, is incident on it. What is the effect on the work function of the zinc metal if the intensity is doubled…
34. Q341 mark · multiple choiceE.M. radiation is produced when very high speed electrons strike a hard target. This type of electromagnetic radiation is known as
35. Q351 mark · multiple choiceWhich of the following graphs correctly show the relationship between the energy, E, of photons of light and their wavelength?
36. Q361 mark · multiple choiceA beam of electrons are made to strike a thin layer of carbon in an evacuated tube as shown in the diagram above. This experiment provides evidence for
37. Q371 mark · multiple choiceAn object of mass m has kinetic energy, E_k. Which of the following is a correct expression for its de Broglie wavelength?
38. Q381 mark · multiple choiceAn isotope of nickel is represented by ^{60}_{28}\text{Ni}. Which line in the table correctly describes a neutral atom of this isotope?
39. Q391 mark · multiple choiceIn an experiment to investigate photoelectricity a graph of stopping potential of photoelectrons is plotted against frequency of incident radiation. What is the MAXIMUM kinetic energy of photoelectrons emitted by…
40. Q401 mark · multiple choiceThe mass of a nucleus is found to be 8.0032\text{ u} and that of its individual constituent nucleus is 8.0045\text{ u}. What is the binding energy of this nucleus?
41. Q411 mark · multiple choiceThe decay constant of a radioactive sample of radon gas 1 \times 10^{-2}\text{ s}^{-1}. If there were 1.6 \times 10^5\text{ atoms} of radon gas present at a certain time, T, how much time must elapse before there…
42. Q421 mark · multiple choiceA nucleus of element A decays to mendelevium ^{255}_{101}\text{Md} by a sequence of three \alpha particle emissions. How many neutrons are there in a nucleus of A?
43. Q431 mark · multiple choiceA radioactive substance emits a type of ionising radiation, P, with the following properties: mass: zero speed: 3 \times 10^8\text{ m s}^{-1} Which of the following statement about P is true? I. P is not deflected…
44. Q441 mark · multiple choiceAn archaeologist finds an ancient wooden relic and obtains its count rate as 20\text{ counts per minute per gram} of sample. The count rate obtained from the bark of a living tree is…
45. Q451 mark · multiple choiceWhat are the parts labelled w, x and y?