CAPE Physics Unit 2 · 2008 (T&T) · Paper 1

44 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 choiceWhen a potential difference of 2\text{ V} is applied across a resistor, 10\text{ J} of energy are converted to thermal energy. What charge flows through the resistor?
2. Q21 mark · multiple choiceWhich of the following graphs shows the I - V characteristic of a filament lamp?
3. Q31 mark · multiple choiceGiven that a wire of length, L, and area, A, has resistance R, what is the resistance of a wire of similar material which is twice as long and half the diameter?
4. Q41 mark · multiple choiceFor the circuit diagram below, determine the current flowing through the 6\ \Omega resistor.
5. Q51 mark · multiple choiceA capacitor of capacitance 100\ \mu\text{F} is fully charged by a 200\text{ V} battery. How much energy is stored by the capacitor?
6. Q61 mark · multiple choiceThe work done per unit charge in bringing a small positive charge from infinity to a point is the definition of
7. Q71 mark · multiple choiceItem 7 refers to the following diagram. What is the force exerted on the electron shown travelling between two parallel plates with a potential difference of 800\text{ V} and plate separation of 0.05\text{ m}?
8. Q81 mark · multiple choiceIn the equation for the current through a conductor I = nevA, v represents the
9. Q91 mark · multiple choiceWhich of the following diagrams shows the correct direction of the forces on two wires carrying current in opposite directions?
10. Q101 mark · multiple choiceThe SI unit of magnetic flux is the
11. Q111 mark · multiple choiceA current-carrying conductor of mass 2 \times 10^{-2}\text{ kg} carrying a current of 2.0\text{ A} is balanced in a magnetic field. If the length of the conductor is 8\text{ cm}, determine the magnetic field…
12. Q121 mark · multiple choiceItem 12 refers to the following diagram. The capacitor in the circuit above has capacitance, C. It is charged to a voltage, V, and then discharged through a resistor with resistance, R. The charge at any time,…
13. Q131 mark · multiple choiceItem 13 refers to the following diagram which shows a square with vertices P, Q, R, S. Two long wires at vertices Q and S carry the same current, I, perpendicular to the plane of the paper, in the directions…
14. Q141 mark · multiple choiceItem 14 refers to the following diagram. The iron core of a transformer is laminated because
15. Q151 mark · multiple choiceItem 15 refers to the following diagram. The device above represents a potential divider. The expression used to determine the output voltage is
16. Q161 mark · multiple choiceWith which of the following devices is the depletion layer associated?
17. Q171 mark · multiple choiceItem 17 refers to the following diagram. The r.m.s value of a.c voltage is related to the peak to peak voltage by the equation
18. Q181 mark · multiple choiceA sinusoidal alternating current of peak value 50\text{ A} dissipates power (P) in a 2\ \Omega resistor. What is the value of P?
19. Q201 mark · multiple choiceItem 20 refers to the following graph which represents a sinusoidal alternating current against time as drawn below. The equation to represent this alternating current is
20. Q211 mark · multiple choiceWhich of the labelled points could be called a virtual earth?
21. Q221 mark · multiple choiceWhat is the output, V_o, of the amplifier?
22. Q231 mark · multiple choiceItem 23 refers to the following diagram which shows an amplifier. If V_s = \pm 9\text{ V}, what is the value of V_o?
23. Q241 mark · multiple choiceItem 24 refers to the following diagram. In the circuit shown an a.c. signal with an amplitude of 3\text{ V} is applied to the non-inverting terminal of the op. amp. By means of the potential divider the potential at…
24. Q251 mark · multiple choiceWhich symbol below represents an X-NOR logic gate?
25. Q261 mark · multiple choiceItem 26 refers to the following diagram. Which is the correct truth table for the circuit above?
26. Q271 mark · multiple choiceIf the inputs to P and Q are both held at logic 1 then the states of R, S and T are
27. Q281 mark · multiple choiceThe symbol for the logic gate which has the equivalent action to this complete circuit is
28. Q291 mark · multiple choiceIf wires are connected as shown which indicators will be on?
29. Q301 mark · multiple choiceWith inputs I_1 and I_2 and output Q, the whole circuit could be replaced by
30. Q311 mark · multiple choiceWhich of the following gives the correct equation for the energy (E) of a photon?
31. Q321 mark · multiple choiceAn electron has kinetic energy of 8 \times 10^{-18}\text{ J}. What is this value in electron-volts?
32. Q331 mark · multiple choiceA metal surface has a work function of 3.8\text{ eV}. Determine the threshold wavelength for this metal.
33. Q341 mark · multiple choiceItem 34 refers to the following diagram. The graph above shows what happens when light of frequency 7.5 \times 10^{14}\text{ Hz} is incident on a metallic surface. The work function for the metal is
34. Q351 mark · multiple choiceItem 35 refers to the following diagram which shows some of the electron energy levels in a hydrogen atom. What is the energy required to ionize a hydrogen atom?
35. Q361 mark · multiple choiceIn the photoelectric effect, the work function is
36. Q371 mark · multiple choiceIf each of the following particles are moving at 0.2\ c, where c is the speed of electromagnetic radiation, which particle has the longest de Broglie wavelength associated with it?
37. Q381 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?
38. Q391 mark · multiple choiceThe mass defect for the nucleus of helium is 0.0303\text{ u}. What is the binding energy per nucleon for helium?
39. Q401 mark · multiple choiceWhat does \lambda represent in the equation, N = N_0 e^{(-\lambda t)}?
40. Q411 mark · multiple choiceA freshly made sample of radioactive material gives a count rate of 8000\text{ counts per minute}. After twenty days, it gives a count-rate of 500\text{ counts per minute}. What is the half-life of the material?
41. Q421 mark · multiple choiceThe fission of Uranium - 235 can be represented by the nuclear equation ^{235}_{92}\text{U} \rightarrow {}^{140}_{54}\text{Ce} + {}^{y}_{x}\text{Zr} + {}^{1}_{0}\text{n} Which combination gives the correct value of…
42. Q431 mark · multiple choiceWhen a radioactive nucleus decays an amount of energy, E, is released. At the same time, a small amount of mass, m, is lost. Which of the following gives the amount of energy?
43. Q441 mark · multiple choiceA palladium nuclide is represented by ^{232}_{91}\text{Pa}. Which of the following is correct for an atom of palladium?
44. Q451 mark · multiple choiceRadioactive lead, ^{211}_{82}\text{Pb} decays by releasing two beta particles and one alpha particle. What is the resulting nuclide?