CAPE Physics Unit 2 · 2009 · Paper 1

43 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 choiceIn the equation for the current through a conductor I = n e v A, v represents the
2. Q21 mark · multiple choiceThe correct unit for resistivity is
3. Q31 mark · multiple choiceThe diagram below shows a battery connected in series with a 2 ohm resistor and a switch S. A voltmeter connected across the battery reads 6\text{ V} when S is opened and 4\text{ V} when S is closed. What is…
4. Q41 mark · multiple choiceFour identical resistors are arranged as shown in the diagram below. What is the current ratio I_1 : I_2 : I_3?
5. Q51 mark · multiple choiceIn SI, the unit of electric field is
6. Q61 mark · multiple choiceWhat is the electric potential of point X in the diagram below?
7. Q71 mark · multiple choiceWhich of the following shows the possible path of a high speed electron through a uniform electric field?
8. Q81 mark · multiple choiceA capacitor of capacitance 100\text{ }\mu\text{F} is fully charged by a 200\text{ V} battery. How much energy is stored by the capacitor?
9. Q91 mark · multiple choice1\text{ farad} is equivalent to
10. Q101 mark · multiple choiceItem 10 refers to the diagram below which shows a long air coil solenoid carrying a current, I, with a flux density of 40\text{ }\mu\text{T} along its centre line. If the solenoid is compressed so that its length,…
11. Q111 mark · multiple choiceConsider a current-carrying conductor, XY, placed between the poles of a magnet as shown below. In which orientation would the wire experience the greater force?
12. Q121 mark · multiple choiceA road is 15\text{ m} below a transmission line which carries an alternating current of peak value 100\text{ A}. The magnitude of the magnetic flux density at the road (due to the current in the transmission line) is
13. Q131 mark · multiple choiceItem 13 refers to the diagram below which shows a rectangular coil, resting on points. Part of the coil is between North and South poles of magnets, as shown. A small mass, m, rests on the shaft PQ. The coil is in…
14. Q141 mark · multiple choiceItem 14 refers to the following diagram. The iron core of a transformer is laminated because
15. Q161 mark · multiple choiceThe effective value of a sinusoidal alternating curve with a peak current, I_0, is
16. Q171 mark · multiple choiceItem 17 refers to the following graph which represents a sinusoidal alternating current against time. The equation to represent this alternating current is
17. Q181 mark · multiple choiceWhy is it advantageous to use an alternating current instead of a steady d.c. when transmitting electrical energy at high voltages?
18. Q191 mark · multiple choiceItem 19 refers to the following diagram. Which ONE of the following traces will be seen on the cathode ray oscilloscope connected across AB if diode B is defective and does NOT conduct in any direction?
19. Q211 mark · multiple choiceWhich one of the circuits below is NOT a non-inverting amplifier?
20. Q221 mark · multiple choiceItem 22 refers to the following diagram which shows an amplifier. If V_s = \pm 9\text{ V} what is the value of V_o?
21. Q231 mark · multiple choiceItem 23 refers to the following diagram. From the information given in the operational amplifier circuit above, determine the current in the 6.0\text{ k}\Omega load resistor.
22. Q241 mark · multiple choiceItem 24 refers to the following diagram. The circuit above represents
23. Q251 mark · multiple choiceItem 25 refers to the following diagram. In the operational amplifier circuit shown above, the feedback resistor (R_f) serves to
24. Q261 mark · multiple choiceItem 26 refers to the following diagrams. The sinusoidal alternating voltage shown in Figure 2 is applied to the input of the operational amplifier shown in Figure 1. The voltage of the power supply is $\pm 15\text{…
25. Q271 mark · multiple choiceTwo four-bit binary numbers are fed into the inputs, X and Y, on an AND gate. The numbers are represented by the pulse trains in the V-t diagrams shown below. Which ONE of the following pulse trains represents the…
26. Q281 mark · multiple choiceItem 28 refers to the following diagram which shows a quad-NAND circuit board connected to a 6\text{ V} supply. It has an indicator diode connected to each output. The diodes are ON if the output is a logic 1. If…
27. Q291 mark · multiple choiceItem 29 refers to the following diagram which shows a combination of logic gates. What single logic gate could replace this circuit?
28. Q301 mark · multiple choiceWhich is the correct circuit for a half-adder?
29. Q311 mark · multiple choiceLight falls on a photoelectric material and no electrons are emitted. Electrons may be emitted if which of the following is/are increased? I. The intensity of the light II. The frequency of the light III. The…
30. Q321 mark · multiple choiceItem 32 refers to the diagram below which shows a photocell, consisting of an anode A and a cathode C inside an evacuated glass tube, connected to an ammeter, voltmeter and a variable d.c. power supply. When the…
31. Q331 mark · multiple choiceA metal surface has a work function of 3.8\text{ eV}. The threshold wavelength for this metal is
32. Q341 mark · multiple choiceThe intensity of X-rays passing through a material of thickness, x, is given by I = I_0 \exp(-\mu x). What does the symbol "\mu" in the equation represent?
33. Q351 mark · multiple choiceItem 35 refers to the drawing below which shows an energy level diagram for hydrogen. What is the energy required to ionize a hydrogen atom in its ground state?
34. Q361 mark · multiple choiceWhich of the following demonstrates the particle nature of electromagnetic radiation?
35. Q371 mark · multiple choiceWhich TWO scientists conducted an experiment which proves that the nucleus of an atom is very small and positively charged?
36. Q381 mark · multiple choiceItem 38 is about Millikan's oil drop experiment which is depicted in the diagram below. Which statement about the behaviour of the oil drops during the experiment is correct?
37. Q391 mark · multiple choiceThe equation shows the disintegration of Polonium-210 to a stable isotope of lead. ^{210}_{84}\text{Po} \rightarrow {}^{206}_{82}\text{Pb} + {}^4_2\text{He} + \Delta Q For the above equation: \text{mass of…
38. Q401 mark · multiple choiceWhich of the following statements about the nucleus is TRUE?
39. Q411 mark · multiple choiceA radium source is placed in a magnetic field as shown below. The field acts into the page. At what position would a \beta-particle be detected?
40. Q421 mark · multiple choiceItem 42 refers to the following diagram which shows how the count rate of a certain sample of radioactive material varies with time. What is the approximate half-life of the sample?
41. Q431 mark · multiple choiceRadioactive lead ^{211}_{82}\text{Pb} decays by two beta particles and one alpha particle. What is the resulting nuclide?
42. Q441 mark · multiple choiceThe following statements refer to radioactive decay. I. It is a random process II. It is a spontaneous process III. It is dependent on the chemical combination of radioactive elements IV. It increases with temperature…
43. Q451 mark · multiple choiceThe half-life of a sample of radioactive substance is 100\text{ years}. What is its decay constant?