CAPE Physics Unit 2 · 2018 · 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 choiceThe electromotive force (e.m.f.) of a battery is 12\text{ V}. What is the charge passing if 36\text{ joules} of energy is delivered?
2. Q21 mark · multiple choiceA light bulb uses a 3\text{ V} supply and takes a current of 0.2\text{ A}. It is switched on for one minute. How much electrical energy is used?
3. Q31 mark · multiple choiceAn alternating current is represented by the equation I = I_0 \sin 120\pi t where t has units of seconds. How many complete cycles does it go through in 10\text{ minutes}?
4. Q41 mark · multiple choiceKirchhoff's second law states that the algebraic sum of the potential differences around a complete circuit must equal zero. This is a consequence of conservation of
5. Q51 mark · multiple choiceIn the potential divider shown, the point \text{X} is to have a potential of +6.0\text{ V}. The resistance of \text{R} is
6. Q61 mark · multiple choiceAsh from factory chimneys is trapped by the charged metal plates inside the chimney walls. The phenomenon that describes the attraction is known as
7. Q71 mark · multiple choiceThe SI unit of electric field strength is
8. Q81 mark · multiple choiceWhich of the following materials does the I\text{-}V graph BEST represent?
9. Q91 mark · multiple choiceThe capacitor in the circuit above has capacitance, \text{C}. It is charged to a voltage, \text{V}, and then discharged through a resistor with resistance, \text{R}. The charge at any time, t, is given by
10. Q111 mark · multiple choiceIn the circuit above, a 9\text{ V} battery is used to charge the 6\ \mu\text{F} capacitor by connecting the switch to \text{S}. The energy stored in the 6\ \mu\text{F} capacitor when fully charged is
11. Q121 mark · multiple choiceA conductor of length 0.10\text{ m} is placed in a magnetic field of strength 9\text{ mT} at an angle of 60^\circ to the field direction. If it has a current of 2\text{ A}, then the force on the conductor due to…
12. Q131 mark · multiple choiceConsider a current-carrying conductor, \text{XY}, placed between the poles of a magnet as shown in the orientations below. In which orientation would the wire experience the GREATEST force?
13. Q141 mark · multiple choiceWhich of the following diagrams shows the correct direction of the forces on two wires carrying current in opposite directions?
14. Q151 mark · multiple choiceOne of its poles lies within a short cylindrical coil as shown. The magnet is displaced slightly so that one pole of the magnet oscillates within the coil. Which of the following graphs illustrates how the…
15. Q161 mark · multiple choiceWhich of the following equations represents an alternating voltage?
16. Q171 mark · multiple choiceA household lamp is marked "120\text{ V}, 60\text{ W}". In normal use, how much energy is transformed for EACH coulomb of charge passing through the lamp?
17. Q181 mark · multiple choiceWhich of the following circuits is NOT a non-inverting amplifier?
18. Q191 mark · multiple choiceWhich of the following diagrams shows the correct arrangement for a full-wave rectifier circuit?
19. Q201 mark · multiple choiceThe battery has negligible internal resistance. Which pair of resistance values would make the voltage between \text{X} and \text{Y} equal to 1.5\text{ V}?
20. Q211 mark · multiple choiceWhich of the following are properties of an ideal operational amplifier? I. Zero output impedance II. Infinite input impedance III. Infinite open loop gain
21. Q221 mark · multiple choiceFor an input of 0.3\text{ V}, the circuit above will have an output of
22. Q231 mark · multiple choiceThe open loop gain of an op-amp is very high; however, its bandwidth is narrow. This means that the
23. Q241 mark · multiple choiceGiven that V_{\text{in}} = 6\ \mu\text{V}, what is the output, V_{\text{out}}, of the cascaded amplifiers?
24. Q251 mark · multiple choiceWhat would be the output, V_0, given that V_1 = V_3 = 1\text{ V}, and V_2 = 0?
25. Q261 mark · multiple choiceFor the inputs shown in the circuit, the outputs are
26. Q271 mark · multiple choiceThe single gate this network represents is
27. Q281 mark · multiple choiceThe electrical circuit can be regarded as a logic gate. Which type of logic gate is represented? (Consider A and B as inputs and Q as the output.)
28. Q291 mark · multiple choiceIn the amplifier circuit shown above, the LED comes on when
29. Q301 mark · multiple choiceTwo four-bit binary numbers are fed in series into the inputs, A and B, of an OR gate. The numbers are represented by the pulse trains in the following V\text{-}t diagrams. Which of the following pulse trains…
30. Q311 mark · multiple choiceWhat is the energy of a photon of frequency 7.0 \times 10^{14}\text{ Hz}?
31. Q321 mark · multiple choiceLight falls on a photoelectric material and no electrons are emitted. Electrons may be emitted if which of the following properties of the light is/are decreased? I. Intensity II. Frequency III. Wavelength
32. Q331 mark · multiple choiceWhat is the velocity of a beam of electrons when the simultaneous influence of an electric field of 1.7 \times 10^5\text{ V}\,\text{m}^{-1} and a magnetic field of 5.0 \times 10^{-3}\text{ T}, both perpendicular to…
33. Q341 mark · multiple choiceWhich of the following phenomena demonstrates the particle nature of electromagnetic radiation?
34. Q351 mark · multiple choiceThe outer electron of a lithium atom is in the -8.68\text{ eV} level. How much energy is required to ionize the atom?
35. Q361 mark · multiple choiceWhich of the following statement(s) is/are true about the wave-particle duality? I. The photoelectric effect is evidence that electromagnetic radiation has a particulate nature. II. Interference is evidence that…
36. Q371 mark · multiple choiceIsotopic forms of an element have different atomic masses. The atoms of each isotope of an element have the same
37. Q381 mark · multiple choiceWhich two scientists conducted an experiment which proved that the nucleus of an atom is very small and positively charged?
38. Q391 mark · multiple choiceMillikan's oil drop experiment provides evidence for the
39. Q401 mark · multiple choiceThe mass of a nucleus is always less than the total mass of its constituent nucleons. This difference in mass is usually released as energy in the form of
40. Q421 mark · multiple choiceThe sum of the masses of the constituent nucleons is different from the mass of the corresponding nucleus. This difference is called the
41. Q431 mark · multiple choiceRadioactive decay is the
42. Q441 mark · multiple choiceA sample of radioactive material contains initially 2.0 \times 10^{18}\text{ atoms}. The material decays by \alpha-emission and has a half-life of 3.0 \times 10^{10}\text{ s}. The initial activity of the sample is
43. Q451 mark · multiple choiceWhat does \lambda in the equation N = N_0\, e^{(-\lambda t)} represent?